1464 見つかった項目
脆弱性
Abstract
クラスには不変であるというアノテーションが付けられていますが、フィールドは final ではありません。
Explanation
このクラスには、JCIP アノテーション パッケージのアノテーション Immutable が付けられています。final 以外のフィールドは、値が変更されるのを許可するため、クラスの不変性が侵害されます。

例 1: 次の不変クラスのコードは、フィールドを final と宣言するのではなく、誤って public に宣言しています。


@Immutable
public class ImmutableInteger {
public int value;

}
References
[1] B. Goetz Java Concurrency in Practice. Chapter 3: Sharing Objects Guidelines
[2] Package net.jcip.annotations Specification
[3] OBJ58-J. Limit the extensibility of classes and methods with invariants CERT
[4] MUTABLE-1: Prefer immutability for value types Oracle
[5] Standards Mapping - Common Weakness Enumeration CWE ID 471
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-002165
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement
[9] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[15] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[16] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[17] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control
[18] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[19] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[20] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[21] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
desc.structural.java.immutable_non_final_fields
Abstract
クラスには不変であるというアノテーションが付けられていますが、フィールドは変化しています。
Explanation
このクラスには、JCIP アノテーションパッケージのアノテーション Immutable が付けられています。可変タイプの公開フィールドが使用されていると、このクラスの外部にあるコードにより内容が変更されたり、このクラスの不変性が侵害されたりします。

例 1: 次の不変の final クラスのコードは、誤って Set を public および final と宣言しています。


@Immutable
public final class ThreeStooges {
public final Set stooges = new HashSet();
...
}
References
[1] B. Goetz Java Concurrency in Practice. Chapter 3: Sharing Objects Guidelines
[2] Package net.jcip.annotations Specification
[3] MUTABLE-1: Prefer immutability for value types Oracle
[4] Standards Mapping - Common Weakness Enumeration CWE ID 471
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-002165
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement
[8] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[9] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[14] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[15] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[16] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control
[17] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[18] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[19] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[20] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[21] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II
desc.structural.java.immutable_public_mutable_fields
Abstract
アプリケーションでは、サード パーティのキーボード拡張をインストールできます。
Explanation
キーボード拡張では、ユーザーが入力したすべてのキーボード操作を読み取ることができます。サードパーティのキーボードは通常、テキスト入力を容易にするため、または絵文字を追加するために使用され、ユーザーが入力した内容または処理のためにリモート サーバーに送信した内容を記録できます。キーロガーとして使用するために悪意のあるキーボードを配布し、ユーザーが入力したすべてのキーを読み取って、認証情報やクレジット カード番号などの機密データを盗むこともできます。
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] UIApplicationDelegate Apple
[3] Standards Mapping - Common Weakness Enumeration CWE ID 522, CWE ID 829
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [18] CWE ID 522
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [21] CWE ID 522
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.3 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 5.3.9 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 12.3.6 File Execution Requirements (L2 L3), 14.2.4 Dependency (L2 L3)
[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-3
[12] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
desc.structural.objc.input_interception_keyboard_extensions_allowed
Abstract
アプリケーションでは、サード パーティのキーボード拡張をインストールできます。
Explanation
キーボード拡張では、ユーザーが入力したすべてのキーボード操作を読み取ることができます。サードパーティのキーボードは通常、テキスト入力を容易にするため、または絵文字を追加するために使用され、ユーザーが入力した内容または処理のためにリモート サーバーに送信した内容を記録できます。キーロガーとして使用するために悪意のあるキーボードを配布し、ユーザーが入力したすべてのキーを読み取って、認証情報やクレジット カード番号などの機密データを盗むこともできます。
References
[1] UIApplicationDelegate Apple
[2] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[3] Standards Mapping - Common Weakness Enumeration CWE ID 522, CWE ID 829
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287, [18] CWE ID 522
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287, [21] CWE ID 522
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 2.10.3 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 5.3.9 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 12.3.6 File Execution Requirements (L2 L3), 14.2.4 Dependency (L2 L3)
[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-3
[12] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
desc.structural.swift.input_interception_keyboard_extensions_allowed
Abstract
機密性の高いデータをメモリから不適切に消し去ると、セキュリティが危険にさらされます。
Explanation
次の場合にコンパイラ最適化エラーが発生します。

1. 機密データがメモリに格納されている場合。

2. 機密データが、内容を上書きすることによってメモリから消し去られる場合。



3. ソースコードが最適化コンパイラを使用してコンパイルされている場合。最適化コンパイラは、そのメモリがそれ以降使用されないという理由で、内容を上書きする関数を無駄な格納域と識別して削除します。
例 1: 次のコードでは、ユーザーからパスワードを読み込み、パスワードを使用してバックエンドのメインフレームに接続してから、memset() を使用してパスワードをメモリから消し去ろうと試みています。


void GetData(char *MFAddr) {
char pwd[64];
if (GetPasswordFromUser(pwd, sizeof(pwd))) {
if (ConnectToMainframe(MFAddr, pwd)) {
// Interaction with mainframe
}
}
memset(pwd, 0, sizeof(pwd));
}


この例のコードは、逐語的に実行される場合は適切に動作しますが、コードが Microsoft Visual C++(R) .NET や GCC 3.x などの最適化コンパイラを使ってコンパイルされた場合、バッファ pwd が値の上書き後に使用されないため、memset() のコールは無駄な格納域として削除されます [2]。バッファ pwd には機密性の高い値が含まれるため、データがメモリに常駐したままになるとアプリケーションが攻撃に対して脆弱になる場合があります。攻撃者がメモリの適切な領域にアクセスできる場合、パスワードを回復してシステムを制御できる可能性があります。

攻撃者にシステムの機密事項がわからないように、メモリで操作されるパスワードや暗号鍵などの機密性が高いデータは上書きするのが普通です。しかし、最適化コンパイラを使用した場合、プログラムはソースコードのみが推奨する方法で常に動作するとは限りません。この例の場合、書き込み先のメモリがそれ以降使用されないため、明確にセキュリティ上の理由があるにも関わらず、コンパイラは memset() のコールを Dead Code と解釈しています。ここでの問題は、多くのコンパイラやプログラム言語では、効率の向上を目指すあまり、個別的なセキュリティ上の懸念材料が考慮に入れられていない点にあります。

攻撃者は通常、このタイプの脆弱性を悪用して、コアダンプまたはランタイムメカニズムを利用し、特定のアプリケーションが使用するメモリにアクセスして機密情報を回復します。機密情報にアクセスした攻撃者は比較的簡単にさらにシステムを悪用することができ、アプリケーションとやり取りする他のリソースが危険にさらされるおそれがあります。
References
[1] M. Howard Some Bad News and Some Good News Microsoft
[2] M. Howard, D. LeBlanc Writing Secure Code, Second Edition Microsoft Press
[3] Standards Mapping - Common Weakness Enumeration CWE ID 14
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001090
[5] Standards Mapping - FIPS200 MP
[6] Standards Mapping - General Data Protection Regulation (GDPR) Privacy Violation
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-4 Information in Shared Resources (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-4 Information in Shared System Resources
[9] Standards Mapping - OWASP Mobile 2014 M4 Unintended Data Leakage
[10] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-STORAGE-2
[11] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[12] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[13] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[14] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[15] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[16] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.4, Requirement 6.5.8, Requirement 8.4
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.4, Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.4, Requirement 6.5.3, Requirement 8.4
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.4, Requirement 6.5.3, Requirement 8.2.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.4, Requirement 6.5.3, Requirement 8.2.1
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.4, Requirement 6.5.3, Requirement 8.2.1
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.4, Requirement 6.5.3, Requirement 8.2.1
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.5.1, Requirement 6.2.4, Requirement 8.3.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 8.3.1
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3230.2 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3230.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3230.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3230.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3230.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3230.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3230.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002380 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002380 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002380 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002380 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002380 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002380 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002380 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002380 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002380 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002380 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002380 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002380 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002380 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002380 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002380 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002380 CAT II
desc.semantic.cpp.insecure_compiler_optimization
Abstract
配列の境界チェックが、最適化によって誤って削除される可能性があります。
Explanation
配列チェックにおいて、不正なポインターの計算およびそのポインターが境界外にあるかどうかの判断が実行される場合、一部のコンパイラでは「プログラマが意図的に不正なポインターを作成することは決してない」という前提のもとに、このチェックが最適化によって削除されます。

例 1:

char *buf;
int len;
...
len = 1<<30;

if (buf+len < buf) //wrap check
[handle overflow]
buf + len という操作は 2^32 よりも大きいため、結果の値は buf よりも小さくなります。しかし、ポインタ上の算術オーバーフローは未定義の動作であるため、一部のコンパイラでは buf + len >= buf だと判断され、ラップ チェックが最適化で削除されます。そのような最適化が実行された結果、このブロックの後に続くコードが Buffer Overflow に対して脆弱にある可能性があります。
References
[1] Vulnerability Note VU#162289 CERT
[2] Standards Mapping - Common Weakness Enumeration CWE ID 733
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002824
[4] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[5] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 18.1
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C++ Guidelines 2023 Rule 8.7.1
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-4 Information in Shared Resources (P1), SI-16 Memory Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-4 Information in Shared System Resources, SI-16 Memory Protection
[9] Standards Mapping - OWASP Mobile 2014 M4 Unintended Data Leakage
[10] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-STORAGE-2
[11] Standards Mapping - OWASP Top 10 2004 A5 Buffer Overflow
[12] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[13] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[14] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.5
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.2
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.2
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.2
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.2
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.2
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[23] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection
[26] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3590.1 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3590.1 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3590.1 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3590.1 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3590.1 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3590.1 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3590.1 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002590 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002590 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002590 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002590 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002590 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002590 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002590 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002590 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002590 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002590 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002590 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002590 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002590 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002590 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002590 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002590 CAT I
desc.structural.cpp.insecure_compiler_optimization_pointer_arithmetic
Abstract
このアプリケーションには、実運用環境に配置するように設計されていないコンポーネントが含まれています。
Explanation
Django アプリケーションは、実運用環境に配置するように設計されていない static files アプリケーションの serve ビューを開示します。Django のマニュアルには次のように記載されています。

static files ツールは、大部分において、実運用に静的ファイルを配置する作業を支援する目的で設計されています。これは多くの場合、ローカルで展開するときに大変な経費となる別個の専用静的ファイル サーバーを意味します。そのため、静的ファイル アプリに簡易ヘルパー ビューが付属します。これを利用し、開発にローカルにファイルを提供できます。

このビューは DEBUGTrue の場合にのみ機能します。

そのため、このビューは著しく非効率的であり、おそらく安全ではありません。ローカルでの開発のみを意図しており、実運用では決して使用しないでください。」
References
[1] Django Foundation The staticfiles app
[2] Django Foundation Managing static files
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000381
[4] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1)
[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality
[7] Standards Mapping - OWASP Mobile 2024 M2 Inadequate Supply Chain Security
[8] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 10.2 - Threat and Vulnerability Management
[9] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 10.2 - Threat and Vulnerability Management
[10] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 10.2 - Threat and Vulnerability Management, Control Objective C.1.6 - Web Software Components & Services
[11] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001500 CAT II
[12] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001500 CAT II
[13] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001500 CAT II
[14] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001500 CAT II
[15] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001500 CAT II
[16] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001500 CAT II
[17] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001500 CAT II
[18] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001500 CAT II
[19] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001500 CAT II
[20] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001500 CAT II
[21] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001500 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001500 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001500 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001500 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001500 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-001500 CAT II
desc.structural.python.insecure_deployment_non_production_ready_staticfiles
Abstract
機密リソースに予測可能な名前を使用すると、攻撃者はアプリケーションを見つけやすくなります。
Explanation
機密情報が含まれる、または特権機能を提供するアプリケーション リソースは、一般的に危険にさらされる可能性が高くなります。調査の段階で、攻撃者はそのようなファイルやディレクトリを見つけようとします。そのようなリソースに予測可能な命名規則を利用すると、攻撃者はリソースの位置を簡単に発見できます。認証、管理タスク、個人情報の取り扱いなど、機密機能に関連するアプリケーション リソースはすべて、発見されないように十分に保護する必要があります。

例 1: 次の例では、admin アプリケーションが予測可能な URL に配置されます。


from django.conf.urls import patterns
from django.contrib import admin

admin.autodiscover()

urlpatterns = patterns('',
...
url(r'^admin/', include(admin.site.urls)),
...


データの保存を担当するリソースは、アプリケーション機能を実装するリソースから離す必要があります。プログラマーは一時的なリソースまたはバックアップ リソースを作成するときに注意する必要があります。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 340
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001368, CCI-001414
[3] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1)
[4] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement
[5] Standards Mapping - OWASP Mobile 2024 M2 Inadequate Supply Chain Security
[6] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[7] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[8] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[9] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[10] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[11] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[12] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[13] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[14] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[15] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[16] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[17] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[18] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[19] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[20] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[21] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[24] Standards Mapping - Web Application Security Consortium Version 2.00 Predictable Resource Location (WASC-34)
desc.structural.python.insecure_deployment_predictable_resource_name
Abstract
拡張ビュー コントローラーは、ホスト アプリケーションから送信されたデータを検証できません。
Explanation
拡張機能はビュー コントローラーでホスト アプリケーションからデータを受け取り、SLComposeServiceViewController isContentValid を実装して受け取った信頼できないデータを使用前に検証することができません。

例 1: 次の拡張ビュー コントローラーはホスト アプリケーションからデータを受け取りますが、コールバック メソッドを実装してデータを検証することができません。


#import <MobileCoreServices/MobileCoreServices.h>

@interface ShareViewController : SLComposeServiceViewController
...
@end

@interface ShareViewController ()
...
@end

@implementation ShareViewController

- (void)didSelectPost {
NSExtensionItem *item = self.extensionContext.inputItems.firstObject;
NSItemProvider *itemProvider = item.attachments.firstObject;
...
// Use the received items
...
[self.extensionContext completeRequestReturningItems:@[] completionHandler:nil];
}

...

@end
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] SLComposeServiceViewController Apple
[3] Standards Mapping - Common Weakness Enumeration CWE ID 501
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001084, CCI-002754
[5] Standards Mapping - FIPS200 SI
[6] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-3 Security Function Isolation (P1), SI-10 Information Input Validation (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-3 Security Function Isolation, SI-10 Information Input Validation
[9] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[10] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-1
[12] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[13] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[16] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[17] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[18] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[19] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[20] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[21] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[22] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[23] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[24] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[25] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[26] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[39] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.objc.insecure_ipc_missing_content_validation
Abstract
拡張ビュー コントローラーは、ホスト アプリケーションから送信されたデータを検証できません。
Explanation
拡張機能はビュー コントローラーでホスト アプリケーションからデータを受け取り、SLComposeServiceViewController isContentValid を実装して受け取った信頼できないデータを使用前に検証することができません。

例 1: 次の拡張ビュー コントローラーはホスト アプリケーションからデータを受け取りますが、SLComposeServiceViewController isContentValid コールバック メソッドを実装してデータを検証することができません。


import MobileCoreServices

class ShareViewController: SLComposeServiceViewController {

...

override func didSelectPost() {
let extensionItem = extensionContext?.inputItems.first as! NSExtensionItem
let itemProvider = extensionItem.attachments?.first as! NSItemProvider
...
// Use the received items
...
self.extensionContext?.completeRequestReturningItems([], completionHandler:nil)
}

...
}
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] SLComposeServiceViewController Apple
[3] Standards Mapping - Common Weakness Enumeration CWE ID 501
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001084, CCI-002754
[5] Standards Mapping - FIPS200 SI
[6] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-3 Security Function Isolation (P1), SI-10 Information Input Validation (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-3 Security Function Isolation, SI-10 Information Input Validation
[9] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[10] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-1
[12] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[13] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[16] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[17] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[18] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[19] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[20] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[21] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[22] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[23] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[24] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[25] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[26] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[39] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.swift.insecure_ipc_missing_content_validation
Abstract
アプリケーションは、URL ベースのプロシージャ間通信 (IPC) コールの送信者の検証に失敗します。
Explanation
サードパーティ アプリケーションまたは webview が URL を使用してアプリケーションと通信する際、受信側のアプリケーションは、通信すると想定されるアプリケーションの許可リストと送信者が一致することを検証する必要があります。受信側のアプリケーションは、UIApplicationDelegate application:openURL:options: または UIApplicationDelegate application:openURL:sourceApplication:annotation: 委任メソッドを使用してコール URL の生成元を検証することもできます。

例 1: 次の UIApplicationDelegate application:openURL:options: 委任メソッドの実装では IPC コールの送信者の検証に失敗し、単にコール URL を処理します。


- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options {
NSString *theQuery = [[url query] stringByRemovingPercentEncoding:NSUTF8StringEncoding];
NSArray *chunks = [theQuery componentsSeparatedByString:@"&"];
for (NSString* chunk in chunks) {
NSArray *keyval = [chunk componentsSeparatedByString:@"="]; NSString *key = [keyval objectAtIndex:0];
NSString *value = [keyval objectAtIndex:1];
// Do something with your key and value
}
return YES;
}
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] UIApplicationDelegate Apple
[3] Standards Mapping - Common Weakness Enumeration CWE ID 501, CWE ID 939
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [25] CWE ID 862
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [11] CWE ID 862
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [9] CWE ID 862
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001084, CCI-002754
[10] Standards Mapping - FIPS200 SI
[11] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-3 Security Function Isolation (P1), SI-10 Information Input Validation (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-3 Security Function Isolation, SI-10 Information Input Validation
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3), 13.1.4 Generic Web Service Security Verification Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[16] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-1
[18] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[19] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[22] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[23] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[24] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[25] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[26] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.objc.insecure_ipc_missing_sender_verification
Abstract
アプリケーションは、URL ベースのプロシージャ間通信 (IPC) コールの送信者の検証に失敗します。
Explanation
サードパーティ アプリケーションまたは wewbview が URL を使用してアプリケーションと通信する際、受信側のアプリケーションは、通信すると想定されるアプリケーションの許可リストと送信者が一致することを検証する必要があります。受信側のアプリケーションは、UIApplicationDelegate application:openURL:options: または UIApplicationDelegate application:openURL:sourceApplication:annotation: 委任メソッドを使用してコール URL の生成元を検証することもできます。

例 1: 次の UIApplicationDelegate application:openURL:options: 委任メソッドの実装では IPC コールの送信者の検証に失敗し、単にコール URL を処理します。


func application(app: UIApplication, openURL url: NSURL, options: [String : AnyObject]) -> Bool {
return processCall(url)
}
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] UIApplicationDelegate Apple
[3] Standards Mapping - Common Weakness Enumeration CWE ID 501, CWE ID 939
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [25] CWE ID 862
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [11] CWE ID 862
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [9] CWE ID 862
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001084, CCI-002754
[10] Standards Mapping - FIPS200 SI
[11] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-3 Security Function Isolation (P1), SI-10 Information Input Validation (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-3 Security Function Isolation, SI-10 Information Input Validation
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3), 13.1.4 Generic Web Service Security Verification Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[16] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-1
[18] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[19] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[22] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[23] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[24] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[25] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[26] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.swift.insecure_ipc_missing_sender_verification
Abstract
アプリケーションは、URL ベースのプロシージャ間通信 (IPC) コールで、コール URL の検証に失敗します。
Explanation
サードパーティ アプリケーションまたは webview が URL を使用してアプリケーションと通信する際、受信側のアプリケーションはさらに操作を進める前に、コール URL を検証する必要があります。受信側のアプリケーションは、UIApplicationDelegate application:didFinishLaunchingWithOptions: または UIApplicationDelegate application:willFinishLaunchingWithOptions: 委任メソッドを使用してコール URL を開くことを検証することもできます。

例 1: 次の UIApplicationDelegate application:didFinishLaunchingWithOptions: 委任メソッドの実装ではコール URL の検証に失敗し、常に信頼できない URL を処理します。


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NS Dictionary *)launchOptions {
return YES;
}
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] Standards Mapping - Common Weakness Enumeration CWE ID 501
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001084, CCI-002754
[4] Standards Mapping - FIPS200 SI
[5] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-3 Security Function Isolation (P1), SI-10 Information Input Validation (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-3 Security Function Isolation, SI-10 Information Input Validation
[8] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[9] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[10] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-1
[11] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[12] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[15] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[16] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[17] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[18] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[19] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[20] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[21] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[22] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[23] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[24] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[25] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[26] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[38] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.objc.insecure_ipc_missing_url_validation
Abstract
アプリケーションは、URL ベースのプロシージャ間通信 (IPC) コールで、コール URL の検証に失敗します。
Explanation
サードパーティ アプリケーションまたは webview が URL を使用してアプリケーションと通信する際、受信側のアプリケーションはさらに操作を進める前に、コール URL を検証する必要があります。受信側のアプリケーションは、UIApplicationDelegate application:didFinishLaunchingWithOptions: または UIApplicationDelegate application:willFinishLaunchingWithOptions: 委任メソッドを使用してコール URL を開くことを検証することもできます。

例 1: 次の UIApplicationDelegate application:didFinishLaunchingWithOptions: 委任メソッドの実装ではコール URL の検証に失敗し、常に信頼できない URL を処理します。


func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
return true
}
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] UIApplicationDelegate Apple
[3] Standards Mapping - Common Weakness Enumeration CWE ID 501
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001084, CCI-002754
[5] Standards Mapping - FIPS200 SI
[6] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-3 Security Function Isolation (P1), SI-10 Information Input Validation (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-3 Security Function Isolation, SI-10 Information Input Validation
[9] Standards Mapping - OWASP Mobile 2014 M8 Security Decisions Via Untrusted Inputs
[10] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-1
[12] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[13] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[16] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[17] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[18] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[19] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[20] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[21] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[22] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[23] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[24] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[25] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[26] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[27] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[28] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[29] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002360 CAT II, APSC-DV-002560 CAT I
[39] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.swift.insecure_ipc_missing_url_validation
Abstract
アプリケーションは、「URL スキームの乗っ取り」を受ける可能性があるプロシージャ間通信 (IPC) にカスタム URL スキームを使用します。
Explanation
アプリケーションは、サードパーティ アプリケーションと通信するためにサードパーティ アプリケーションのカスタム URL スキームを登録できます。これは単純な IPC チャネルですが、アプリケーションが「URL スキームの乗っ取り」にさらされる可能性があります。Apple によって確保されていない限り、どのアプリケーションも URL スキームを登録できますが、悪意のあるアプリケーションがお使いのアプリケーションで使用されたスキーマと同じスキーマを登録して、未定義の動作が生じる可能性があります。Apple のドキュメントには、「複数のサードパーティ アプリケーションが同じ URL スキームを扱うために登録した場合、そのスキームが与えられるアプリケーションを特定するプロセスは現在ありません」と記載されています。お使いのアプリケーションの前に悪意のあるアプリケーションがインストールされた場合、悪意のあるアプリケーションがスキーマを登録して、お使いのアプリケーションを正常にインストールできないようにする可能性があります。また、お使いのアプリケーションの後に悪意のあるアプリケーションがインストールされ、悪意のあるアプリケーションがスキーマの登録に成功した場合、お使いのアプリケーションからスキーマを乗っ取る可能性があります。
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] Standards Mapping - Common Weakness Enumeration CWE ID 939
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [25] CWE ID 862
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [11] CWE ID 862
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [9] CWE ID 862
[8] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3), 13.1.4 Generic Web Service Security Verification Requirements (L2 L3)
[10] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-PLATFORM-1
[11] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
desc.structural.objc.insecure_ipc_url_scheme_hijacking
Abstract
アプリケーションは、「URL スキームの乗っ取り」を受ける可能性があるプロシージャ間通信 (IPC) にカスタム URL スキームを使用します。
Explanation
アプリケーションは、サードパーティ アプリケーションと通信するためにサードパーティ アプリケーションのカスタム URL スキームを登録できます。これは単純な IPC チャネルですが、アプリケーションが「URL スキームの乗っ取り」にさらされる可能性があります。Apple によって確保されていない限り、どのアプリケーションも URL スキームを登録できますが、悪意のあるアプリケーションがお使いのアプリケーションで使用されたスキーマと同じスキーマを登録して、未定義の動作が生じる可能性があります。Apple のドキュメントには、「複数のサードパーティ アプリケーションが同じ URL スキームを扱うために登録した場合、そのスキームが与えられるアプリケーションを特定するプロセスは現在ありません」と記載されています。お使いのアプリケーションの前に悪意のあるアプリケーションがインストールされた場合、悪意のあるアプリケーションがスキーマを登録して、お使いのアプリケーションを正常にインストールできないようにする可能性があります。また、お使いのアプリケーションの後に悪意のあるアプリケーションがインストールされ、悪意のあるアプリケーションがスキーマの登録に成功した場合、お使いのアプリケーションからスキーマを乗っ取る可能性があります。
References
[1] David Thiel iOS Application Security: The Definitive Guide for Hackers and Developers No Starch Press
[2] Standards Mapping - Common Weakness Enumeration CWE ID 939
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [25] CWE ID 862
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [18] CWE ID 862
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [16] CWE ID 862
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [11] CWE ID 862
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [9] CWE ID 862
[8] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3), 13.1.4 Generic Web Service Security Verification Requirements (L2 L3)
[10] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-PLATFORM-1
[11] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
desc.structural.swift.insecure_ipc_url_scheme_hijacking
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


FORM GenerateReceiptURL CHANGING baseUrl TYPE string.
DATA: r TYPE REF TO cl_abap_random,
var1 TYPE i,
var2 TYPE i,
var3 TYPE n.


GET TIME.
var1 = sy-uzeit.
r = cl_abap_random=>create( seed = var1 ).
r->int31( RECEIVING value = var2 ).
var3 = var2.
CONCATENATE baseUrl var3 ".html" INTO baseUrl.
ENDFORM.


このコードは CL_ABAP_RANDOM->INT31 関数を使用して、領収書ページの一意の識別子を生成します。CL_ABAP_RANDOM は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Standards Mapping - Common Weakness Enumeration CWE ID 338
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[4] Standards Mapping - FIPS200 MP
[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[10] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[11] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[13] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[14] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.abap.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


string GenerateReceiptURL(string baseUrl) {
Random Gen = new Random();
return (baseUrl + Gen.Next().toString() + ".html");
}


このコードは Random.Next() 関数を使用して、領収書ページの一意の識別子を生成します。Random.Next() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] RandomNumberGenerator Class Microsoft
[2] System.Security.Cryptography Namespace Microsoft
[3] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[4] Standards Mapping - Common Weakness Enumeration CWE ID 338
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.dotnet.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


char* CreateReceiptURL() {
int num;
time_t t1;
char *URL = (char*) malloc(MAX_URL);
if (URL) {
(void) time(&t1);
srand48((long) t1); /* use time to set seed */
sprintf(URL, "%s%d%s", "http://test.com/", lrand48(), ".html");
}
return URL;
}


このコードは lrand48() 関数を使用して、領収書ページの一意の識別子を生成します。lrand48() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] B. Schneier Yarrow: A secure pseudorandom number generator
[2] CryptLib
[3] Crypto++
[4] BeeCrypt
[5] OpenSSL
[6] CryptoAPI: CryptGenRandom() Microsoft
[7] RtlGenRandom() Microsoft
[8] .NET System.Security.Cryptography: Random Number Generation Microsoft
[9] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[10] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[11] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[12] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[13] Standards Mapping - Common Weakness Enumeration CWE ID 338
[14] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[15] Standards Mapping - FIPS200 MP
[16] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[17] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[18] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[19] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[20] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[21] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[22] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[23] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[24] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[25] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[26] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[27] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[35] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[36] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[38] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[39] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[40] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[41] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[62] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[63] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.cpp.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。


コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


<cfoutput>
Receipt: #baseUrl##Rand()#.cfm
</cfoutput>


このコードは Rand() 関数を使用して、領収書ページの一意の識別子を生成します。Rand() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] ColdFusion Java CFX Reference Adobe
[2] Java Cryptography Architecture Oracle
[3] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[4] Standards Mapping - Common Weakness Enumeration CWE ID 338
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.cfml.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供します。しかし、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは、統計的 PRNG を使用して RSA 鍵を作成します。


import "math/rand"
...
var mathRand = rand.New(rand.NewSource(1))
rsa.GenerateKey(mathRand, 2048)


このコードは rand.New() 関数を使用して、RSA 鍵の乱数を生成します。rand.New() は統計的 PRNG なので、生成される値の推測は攻撃者にとってはたやすいことです。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Standards Mapping - Common Weakness Enumeration CWE ID 338
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[4] Standards Mapping - FIPS200 MP
[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[10] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[11] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[13] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[14] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.golang.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


String GenerateReceiptURL(String baseUrl) {
Random ranGen = new Random();
ranGen.setSeed((new Date()).getTime());
return (baseUrl + ranGen.nextInt(400000000) + ".html");
}


このコードは Random.nextInt() 関数を使用して、領収書ページの一意の識別子を生成します。Random.nextInt() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] MSC02-J. Generate strong random numbers CERT
[4] Standards Mapping - Common Weakness Enumeration CWE ID 338
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.java.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


function genReceiptURL (baseURL){
var randNum = Math.random();
var receiptURL = baseURL + randNum + ".html";
return receiptURL;
}


このコードは Math.random() 関数を使用して、領収書ページの一意の識別子を生成します。Math.random() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Crypto | Node.js documentation The OpenJS Foundation and Node.js contributors
[3] Standards Mapping - Common Weakness Enumeration CWE ID 338
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[5] Standards Mapping - FIPS200 MP
[6] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[7] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[31] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.structural.javascript.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


fun GenerateReceiptURL(baseUrl: String): String {
val ranGen = Random(Date().getTime())
return baseUrl + ranGen.nextInt(400000000).toString() + ".html"
}


このコードは Random.nextInt() 関数を使用して、領収書ページの「一意の」識別子を生成します。Random.nextInt() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] MSC02-J. Generate strong random numbers CERT
[4] Standards Mapping - Common Weakness Enumeration CWE ID 338
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.kotlin.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


function genReceiptURL($baseURL) {
$randNum = rand();
$receiptURL = $baseURL . $randNum . ".html";
return $receiptURL;
}


このコードは rand() 関数を使用して、領収書ページの一意の識別子を生成します。rand() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Standards Mapping - Common Weakness Enumeration CWE ID 338
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[4] Standards Mapping - FIPS200 MP
[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[10] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[11] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[13] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[14] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.php.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


CREATE or REPLACE FUNCTION CREATE_RECEIPT_URL
RETURN VARCHAR2
AS
rnum VARCHAR2(48);
time TIMESTAMP;
url VARCHAR2(MAX_URL)
BEGIN
time := SYSTIMESTAMP;
DBMS_RANDOM.SEED(time);
rnum := DBMS_RANDOM.STRING('x', 48);
url := 'http://test.com/' || rnum || '.html';
RETURN url;
END


このコードは DBMS_RANDOM.SEED() 関数を使用して、領収書ページの一意の識別子を生成します。DBMS_RANDOM.SEED() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] Oracle Database Security Guide
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] Standards Mapping - Common Weakness Enumeration CWE ID 338
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[5] Standards Mapping - FIPS200 MP
[6] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[7] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[31] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.sql.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


def genReceiptURL(self,baseURL):
randNum = random.random()
receiptURL = baseURL + randNum + ".html"
return receiptURL


このコードは rand() 関数を使用して、領収書ページの一意の識別子を生成します。rand() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Standards Mapping - Common Weakness Enumeration CWE ID 338
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[4] Standards Mapping - FIPS200 MP
[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[10] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[11] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[13] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[14] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.python.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


def generateReceiptURL(baseUrl) {
randNum = rand(400000000)
return ("#{baseUrl}#{randNum}.html");
}


このコードは Kernel.rand() 関数を使用して、領収書ページの一意の識別子を生成します。Kernel.rand() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 338
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[3] Standards Mapping - FIPS200 MP
[4] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[5] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[8] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[9] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[10] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[12] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[13] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[14] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.structural.ruby.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


def GenerateReceiptURL(baseUrl : String) : String {
val ranGen = new scala.util.Random()
ranGen.setSeed((new Date()).getTime())
return (baseUrl + ranGen.nextInt(400000000) + ".html")
}


このコードは Random.nextInt() 関数を使用して、領収書ページの一意の識別子を生成します。Random.nextInt() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] MSC02-J. Generate strong random numbers CERT
[4] Standards Mapping - Common Weakness Enumeration CWE ID 338
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.scala.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードでは、統計的 PRNG を使用してパスワードのリセット トークンとして使用されるランダムな値を作成します。


sqlite3_randomness(10, &reset_token)
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[3] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[4] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[5] Standards Mapping - Common Weakness Enumeration CWE ID 338
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[13] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[14] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[16] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[17] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[32] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[33] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.swift.insecure_randomness
Abstract
標準的な Pseudo-Random Number Generator (PRNG) では、暗号の弱点を利用した攻撃には耐えられません。
Explanation
Insecure Randomness エラーが発生するのは、セキュリティが重要であるコンテキストで、ランダム性のソースとして、予期可能な値を生成する関数が使用される場合です。

コンピュータは決定論的な機械であるため、真のランダム性を生成することはできません。Pseudo-Random Number Generator (PRNG) はランダム性をアルゴリズムにより近似します。最初の値はシードと呼ばれ、後続の値はそこから計算されます。

PRNG には、統計的なものと暗号的なものがあります。統計的 PRNG は有用な統計上の特性を提供しますが、その出力はきわめて予測可能で、再現しやすい数値ストリームを形成するため、生成される値を予期できないことにセキュリティが依存している場合の使用には不適切です。この問題に対処するため、暗号的 PRNG は、より予期しにくい出力を生成します。値を暗号によって保護するためには、攻撃者が生成されたランダムな値と真にランダムな値を区別することが不可能か、または非常に困難である必要があります。一般的に、PRNG アルゴリズムは、暗号的に安全であると告知されていなければ統計的 PRNG である可能性が高く、セキュリティが重要なコンテキストで使用すべきではありません。PRNG アルゴリズムを使用することで、解読されやすい一時パスワードや暗号化キー、セッションハイジャック、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは統計的 PRNG を使用して、購入後の一定期間利用できる領収書の URL を作成します。


...
Function genReceiptURL(baseURL)
dim randNum
randNum = Rnd()
genReceiptURL = baseURL & randNum & ".html"
End Function
...


このコードは Rnd() 関数を使用して、領収書ページの一意の識別子を生成します。Rnd() は統計的 PRNG なので、生成される文字列の推測は攻撃者にとってはたやすいことです。領収書システムの基礎設計にも欠陥がありますが、暗号的 PRNG など、予測可能な領収書 ID を生成しない乱数ジェネレータを使えば安全性が高まります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] CryptoAPI: CryptGenRandom() Microsoft
[3] Standards Mapping - Common Weakness Enumeration CWE ID 338
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[5] Standards Mapping - FIPS200 MP
[6] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[7] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.1 Random Values (L2 L3), 6.3.2 Random Values (L2 L3), 6.3.3 Random Values (L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[31] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.vb.insecure_randomness
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。
Explanation
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。疑似乱数ジェネレーター (CL_ABAP_RANDOM クラスまたはそのバリアントなど) が特定の定数値を使用してシードされると、値を返すかまたは割り当てる GET_NEXTINT および類似のメソッドによって返される値を攻撃者が予測できるようになり、攻撃者は複数の PRNG 出力を収集できるようになります。

例 1: 次の引用では、オブジェクト random_gen2 で生成される値は、オブジェクト random_gen1 から予想できます。


DATA: random_gen1 TYPE REF TO cl_abap_random,
random_gen2 TYPE REF TO cl_abap_random,
var1 TYPE i,
var2 TYPE i.

random_gen1 = cl_abap_random=>create( seed = '1234' ).

DO 10 TIMES.
CALL METHOD random_gen1->int
RECEIVING
value = var1.

WRITE:/ var1.
ENDDO.

random_gen2 = cl_abap_random=>create( seed = '1234' ).

DO 10 TIMES.
CALL METHOD random_gen2->int
RECEIVING
value = var2.

WRITE:/ var2.
ENDDO.


この例では、疑似乱数ジェネレータ、random_gen1random_gen2 が同じようにシードされたため、var1 = var2 となります
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Standards Mapping - Common Weakness Enumeration CWE ID 336
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[4] Standards Mapping - FIPS200 MP
[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[8] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[9] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[10] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[12] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[13] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[14] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.structural.abap.insecure_randomness_hardcoded_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。
Explanation
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。特定の値を使用して (srand(unsigned int) のような関数を使用) 疑似ランダム数値の生成機能 (rand() など) をシードすると、値を返すかまたは割り当てる rand() および類似のメソッドによって返される値は、攻撃者にとって予想可能になり、攻撃者が複数の PRNG 出力を収集できるようになります。

例 1: 疑似ランダム数値の生成機能で生成される値が、最初の 2 つのブロックで予測できます (どちらも同じシードで開始されるため)。


srand(2223333);
float randomNum = (rand() % 100);
syslog(LOG_INFO, "Random: %1.2f", randomNum);
randomNum = (rand() % 100);
syslog(LOG_INFO, "Random: %1.2f", randomNum);

srand(2223333);
float randomNum2 = (rand() % 100);
syslog(LOG_INFO, "Random: %1.2f", randomNum2);
randomNum2 = (rand() % 100);
syslog(LOG_INFO, "Random: %1.2f", randomNum2);

srand(1231234);
float randomNum3 = (rand() % 100);
syslog(LOG_INFO, "Random: %1.2f", randomNum3);
randomNum3 = (rand() % 100);
syslog(LOG_INFO, "Random: %1.2f", randomNum3);


この例では、randomNum1randomNum2 の結果は同一の方法でシードされているので、擬似ランダム数値の生成機能 srand(2223333) をシードするコール後の rand() への各コールは、結果的に同じコール実行順序で同じ出力になります。たとえば、出力は以下のようになります。


Random: 32.00
Random: 73.00
Random: 32.00
Random: 73.00
Random: 15.00
Random: 75.00


このような結果は決してランダムではありません。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[3] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[4] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[5] Standards Mapping - Common Weakness Enumeration CWE ID 336
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.cpp.insecure_randomness_hardcoded_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。
Explanation
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。疑似乱数ジェネレーター (PRNG) が特定の値を使用 (math.Rand.New(Source) のような関数を使用) してシードされると、値を返すかまたは割り当てる math.Rand.Int() および類似のメソッドによって返される値を攻撃者が予測できるようになり、攻撃者は複数の PRNG 出力を収集できるようになります。

例 1: 疑似ランダム数値の生成機能で生成される値が、最初の 2 つのブロックで予測できます (どちらも同じシードで開始されるため)。


randomGen := rand.New(rand.NewSource(12345))
randomInt1 := randomGen.nextInt()

randomGen.Seed(12345)
randomInt2 := randomGen.nextInt()


この例では、PRNG が同一の方法でシードされるため、擬似乱数ジェネレーターにシードを設定したコール (randomGen.Seed(12345)) の後に nextInt() をコールすると、同じ出力が同じ順序で得られます。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] MSC02-J. Generate strong random numbers CERT
[3] MSC03-J. Never hard code sensitive information CERT
[4] Standards Mapping - Common Weakness Enumeration CWE ID 336
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[31] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.golang.insecure_randomness_hardcoded_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。
Explanation
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。疑似乱数ジェネレーター (Random など) が特定の値を使用 (Random.setSeed() のような関数を使用) してシードされると、値を返すかまたは割り当てる Random.nextInt() および類似のメソッドによって返される値を攻撃者が予測できるようになり、攻撃者は複数の PRNG 出力を収集できるようになります。

例 1:Random オブジェクト randomGen2 によって生成される値は、Random オブジェクト randomGen1 から予想できます。


Random randomGen1 = new Random();
randomGen1.setSeed(12345);
int randomInt1 = randomGen1.nextInt();
byte[] bytes1 = new byte[4];
randomGen1.nextBytes(bytes1);

Random randomGen2 = new Random();
randomGen2.setSeed(12345);
int randomInt2 = randomGen2.nextInt();
byte[] bytes2 = new byte[4];
randomGen2.nextBytes(bytes2);


この例では、疑似乱数ジェネレータ、randomGen1randomGen2 は同一の方法でシードされるので、randomInt1 == randomInt2、および対応する配列 bytes1[]bytes2[] の値は等しくなります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] MSC02-J. Generate strong random numbers CERT
[4] MSC03-J. Never hard code sensitive information CERT
[5] Standards Mapping - Common Weakness Enumeration CWE ID 336
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.java.insecure_randomness_hardcoded_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。
Explanation
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。疑似乱数ジェネレーター (Random など) が特定の値を使用 (Random(Int) のような関数を使用) してシードされると、値を返すかまたは割り当てる Random.nextInt() および類似のメソッドによって返される値を攻撃者が予測できるようになり、攻撃者は複数の PRNG 出力を収集できるようになります。

例 1:Random オブジェクト randomGen2 によって生成される値は、Random オブジェクト randomGen1 から予想できます。


val randomGen1 = Random(12345)
val randomInt1 = randomGen1.nextInt()
val byteArray1 = ByteArray(4)
randomGen1.nextBytes(byteArray1)

val randomGen2 = Random(12345)
val randomInt2 = randomGen2.nextInt()
val byteArray2 = ByteArray(4)
randomGen2.nextBytes(byteArray2)


この例では、疑似乱数ジェネレータ、randomGen1randomGen2 は同一の方法でシードされるので、randomInt1 == randomInt2、および対応する配列 byteArray1byteArray2 の値は等しくなります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] MSC02-J. Generate strong random numbers CERT
[4] MSC03-J. Never hard code sensitive information CERT
[5] Standards Mapping - Common Weakness Enumeration CWE ID 336
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.kotlin.insecure_randomness_hardcoded_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、整数の定数引数を使用してコールしないでください。
Explanation
疑似ランダム値を生成する関数 (シードが渡される) を、整数の定数引数を使用してコールしないでください。疑似ランダム数値の生成機能が特定の値でシードされる場合、返される値が予測できます。

例 1: 疑似ランダム数値の生成機能で生成される値が、最初の 2 つのブロックで予測できます (どちらも同じシードで開始されるため)。


...
import random
random.seed(123456)
print "Random: %d" % random.randint(1,100)
print "Random: %d" % random.randint(1,100)
print "Random: %d" % random.randint(1,100)

random.seed(123456)
print "Random: %d" % random.randint(1,100)
print "Random: %d" % random.randint(1,100)
print "Random: %d" % random.randint(1,100)
...


この例では、PRNG が同様にシードされているため、疑似ランダム数値の生成機能 (random.seed(123456)) をシードするコールの後の randint() への各コールの結果、同じものが同じ順序で出力されます。たとえば、出力は以下のようになります。


Random: 81
Random: 80
Random: 3
Random: 81
Random: 80
Random: 3


このような結果は決してランダムではありません。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[3] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[4] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[5] Standards Mapping - Common Weakness Enumeration CWE ID 336
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.python.insecure_randomness_hardcoded_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。
Explanation
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、定数の引数を使用してコールしないでください。疑似乱数ジェネレーター (Random など) が特定の値を使用 (Random.setSeed() のような関数を使用) してシードされると、値を返すかまたは割り当てる Random.nextInt() および類似のメソッドによって返される値を攻撃者が予測できるようになり、攻撃者は複数の PRNG 出力を収集できるようになります。

例 1:Random オブジェクト randomGen2 によって生成される値は、Random オブジェクト randomGen1 から予想できます。


val randomGen1 = new Random()
randomGen1.setSeed(12345)
val randomInt1 = randomGen1.nextInt()
val bytes1 = new byte[4]
randomGen1.nextBytes(bytes1)

val randomGen2 = new Random()
randomGen2.setSeed(12345)
val randomInt2 = randomGen2.nextInt()
val bytes2 = new byte[4]
randomGen2.nextBytes(bytes2)


この例では、疑似乱数ジェネレータ、randomGen1randomGen2 は同一の方法でシードされるので、randomInt1 == randomInt2、および対応する配列 bytes1[]bytes2[] の値は等しくなります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] MSC02-J. Generate strong random numbers CERT
[4] MSC03-J. Never hard code sensitive information CERT
[5] Standards Mapping - Common Weakness Enumeration CWE ID 336
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M1 Improper Credential Usage
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.semantic.scala.insecure_randomness_hardcoded_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、汚染された引数を使用してコールしないでください。
Explanation
クラス CL_ABAP_RANDOM (またはそのバリアント) を、汚染された引数を使用して初期化しないでください。そのような初期化を行うと、攻撃者が疑似ランダム数値の生成機能のシードに使用される値を制御できるようになります。したがって、以下のようなメソッド (これらに限りません) へのコールによって作成された値のシーケンスを攻撃者が予測できるようになります。 GET_NEXT, INT, FLOAT, PACKED.
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[3] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[4] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[5] Standards Mapping - Common Weakness Enumeration CWE ID 335
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.abap.insecure_randomness_user_controlled_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、汚染された引数を使用してコールしないでください。
Explanation
ランダム値または疑似ランダム値 (rand() など) を生成する関数 (シード (srand() など) が渡される) を、汚染された引数を使用してコールしないでください。このようなコールを行うと、攻撃者が疑似ランダム数値の生成機能のシードに使用される値を制御できるようになります。したがって、擬似乱数生成機能へのコールによって作成された値のシーケンス (通常は整数) を攻撃者が予測できるようになります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[3] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[4] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[5] Standards Mapping - Common Weakness Enumeration CWE ID 335
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.cpp.insecure_randomness_user_controlled_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、汚染された引数を使用してコールしないでください。
Explanation
疑似ランダム値を生成する関数 (ed25519.NewKeyFromSeed()) を、汚染された引数を使用してコールしないでください。そのようなコールを行うと、攻撃者は疑似乱数ジェネレータのシードに使用する値を制御できるようになるため、疑似乱数ジェネレータを呼び出したときに生成される一連の値を予測することができるようになります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[3] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[4] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[5] MSC02-J. Generate strong random numbers CERT
[6] Standards Mapping - Common Weakness Enumeration CWE ID 335
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[8] Standards Mapping - FIPS200 MP
[9] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[13] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[14] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[16] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[17] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[32] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[33] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.golang.insecure_randomness_user_controlled_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、汚染された整数引数を使用してコールしないでください。
Explanation
Random.setSeed() を、汚染された整数引数を使用してコールしないでください。そのようなコールを行うと、攻撃者は擬似ランダム数値生成機能のシードに使用する値を制御できるようになるため、Random.nextInt()Random.nextShort()Random.nextLong() へのコールにより生成されるか、Random.nextBoolean() により返されるか、または Random.nextBytes(byte[]) で設定される値 (通常は整数) のシーケンスを予想できるようになります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[4] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[5] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[6] MSC02-J. Generate strong random numbers CERT
[7] Standards Mapping - Common Weakness Enumeration CWE ID 335
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 MP
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[33] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[34] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.java.insecure_randomness_user_controlled_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、汚染された整数引数を使用してコールしないでください。
Explanation
Random.setSeed() を、汚染された整数引数を使用してコールしないでください。そのようなコールを行うと、攻撃者は疑似ランダム数値生成機能のシードに使用する値を制御できるようになるため、Random.nextInt()Random.nextLong()Random.nextDouble() へのコールにより生成されるか、Random.nextBoolean() により返されるか、または Random.nextBytes(ByteArray) で設定される値 (通常は整数) のシーケンスを予想できるようになります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[4] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[5] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[6] MSC02-J. Generate strong random numbers CERT
[7] Standards Mapping - Common Weakness Enumeration CWE ID 335
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 MP
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[33] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[34] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.kotlin.insecure_randomness_user_controlled_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、汚染された引数を使用してコールしないでください。
Explanation
疑似ランダム値を生成する関数 (random.randint() など) を、汚染された引数を使用してコールしないでください。このようなコールを行うと、攻撃者が疑似ランダム数値の生成機能のシードに使用される値を制御できるようになります。したがって、疑似ランダム数値生成機能へのコールによって作成された値のシーケンス (通常は整数) を攻撃者が予測できるようになります。
References
[1] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[2] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[3] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[4] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[5] Standards Mapping - Common Weakness Enumeration CWE ID 335
[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[7] Standards Mapping - FIPS200 MP
[8] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[9] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[10] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[11] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[12] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[13] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[14] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[15] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[16] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[31] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.python.insecure_randomness_user_controlled_seed
Abstract
ランダム値または疑似ランダム値を生成する関数 (シードが渡される) を、汚染された整数引数を使用してコールしないでください。
Explanation
Random.setSeed() を、汚染された整数引数を使用してコールしないでください。そのようなコールを行うと、攻撃者は疑似ランダム数値生成機能のシードに使用する値を制御できるようになるため、Random.nextInt()Random.nextShort()Random.nextLong() へのコールにより生成されるか、Random.nextBoolean() により返されるか、または Random.nextBytes(byte[]) で設定される値 (通常は整数) のシーケンスを予想できるようになります。
References
[1] Java Cryptography Architecture Oracle
[2] J. Viega, G. McGraw Building Secure Software Addison-Wesley
[3] Elaine Barker and John Kelsey NIST Special Publication 800-90A: Recommendation for Random Number Generation Using Deterministic Random Bit Generators NIST
[4] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[5] Elaine Barker and John Kelsey DRAFT NIST Special Publication 800-90C: Recommendation for Random Bit Generator (RBG) Constructions NIST
[6] MSC02-J. Generate strong random numbers CERT
[7] Standards Mapping - Common Weakness Enumeration CWE ID 335
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[9] Standards Mapping - FIPS200 MP
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 6.3.3 Random Values (L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[33] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[34] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.scala.insecure_randomness_user_controlled_seed
Abstract
ランダムまたは擬似ランダム数値の生成機能は、脆弱なエントロピ ソースを使用します。
Explanation
ランダムまたは擬似ランダム数値の生成機能により使用される適切なエントロピ ソースがないと、Denial of Service または予測可能な数列の生成の原因になります。ランダムまたは擬似ランダム数値の生成機能がエントロピ ソースを使い果たすと、プログラムは一時停止またはクラッシュし、結果的に Denial of Service が生じる可能性があります。または、ランダムまたは擬似ランダム数値の生成機能が予測可能な数値を生成する場合があります。ランダムまたは擬似ランダム数値の脆弱なソースは、容易に推測できる一時パスワード、予想可能な暗号化鍵、セッション乗っ取り、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは、システム クロックをエントロピ ソースとして使用します。

...
srand (time(NULL));
r = (rand() % 6) + 1;
...


システム クロックは予測可能な値を生成するので、推奨されるエントロピ ソースではありません。同じことは、システム/入力/出力バッファー、ユーザー/システム/ハードウェア/ネットワーク シリアル番号またはアドレス、ユーザー入力など、他の非ハードウェア ベースのランダム性ソースにも該当します。
References
[1] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[2] Standards Mapping - Common Weakness Enumeration CWE ID 331
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[4] Standards Mapping - FIPS200 MP
[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.3 Random Values (L3)
[10] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[11] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[13] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[14] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.dataflow.cpp.insecure_randomness_weak_entropy_source
Abstract
ランダムまたは擬似ランダム数値の生成機能は、脆弱なエントロピ ソースを使用します。
Explanation
ランダムまたは擬似ランダム数値の生成機能により使用される適切なエントロピ ソースがないと、Denial of Service または予測可能な数列の生成の原因になります。ランダムまたは擬似ランダム数値の生成機能がエントロピ ソースを使い果たすと、プログラムは一時停止またはクラッシュし、結果的に Denial of Service が生じる可能性があります。または、ランダムまたは擬似ランダム数値の生成機能が予測可能な数値を生成する場合があります。ランダム数値の脆弱なソースは、容易に推測できる一時パスワード、予想可能な暗号化鍵、セッション乗っ取り、DNS 偽装などの深刻な脆弱性が発生する可能性があります。

例 1: 次のコードは、システム クロックをエントロピ ソースとして使用します。

...
import time
import random

random.seed(time.time())
...


システム クロックは予測可能な値を生成するので、推奨されるエントロピ ソースではありません。同じことは、システム/入力/出力バッファー、ユーザー/システム/ハードウェア/ネットワーク シリアル番号またはアドレス、ユーザー入力など、他の非ハードウェア ベースのランダム性ソースにも該当します。
References
[1] Elaine Barker and John Kelsey NIST DRAFT Special Publication 800-90B: Recommendation for the Entropy Sources Used for Random Bit Generation NIST
[2] Standards Mapping - Common Weakness Enumeration CWE ID 331
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[4] Standards Mapping - FIPS200 MP
[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Rule 21.24
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-13 Cryptographic Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-13 Cryptographic Protection
[9] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.3.1 Authenticator Lifecycle Requirements (L1 L2 L3), 2.6.2 Look-up Secret Verifier Requirements (L2 L3), 3.2.2 Session Binding Requirements (L1 L2 L3), 3.2.4 Session Binding Requirements (L2 L3), 6.3.3 Random Values (L3)
[10] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[11] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[12] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[13] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[14] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[15] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.3 - Use of Cryptography
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.3 - Use of Cryptography, Control Objective B.2.4 - Terminal Software Design
[29] Standards Mapping - SANS Top 25 2009 Porous Defenses - CWE ID 330
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.2 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.2 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.2 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.2 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.2 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.2 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.2 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002010 CAT II, APSC-DV-002050 CAT II, APSC-DV-002290 CAT II
desc.structural.python.insecure_randomness_weak_entropy_source
Abstract
HTML サニタイザー ポリシーを定義するのにユーザー制御または信頼できないデータを使用すると、攻撃者がサニタイズの要求を回避して Cross-Site Scripting (XSS) 攻撃を開始できる可能性があります。
Explanation
包括的用語である「入力処理」は入力データのエンコーディングやデコーディング、検証、サニタイズ、フィルタリングのような機能を示します。Cross-Site Scripting、SQL Injection、Process Control の脆弱性は、いずれも入力処理が正しくなかったり、行われなかったりしたことが原因となっています。(入力を許容可能なフォームに変換することが必要な) 入力のサニタイズは、通常、入力検証に加えて実施されます。HTML サニタイズとは、ユーザー入力をクレンジングおよび消去し、安全と見なされるタグ、属性、要素のみを許容することを示します。
HTML サニタイズ ポリシーの実施は難しいです。実施を成功させる鍵はデータが使用されるコンテキストを理解することです。各コンテキストにはそれぞれの脆弱性があり、1 つのサイズがすべてに適合するわけではありません。Web アプリケーションで XSS の脆弱性から保護するために HTML サニタイザー (たとえば OWASP HTML サニタイザー) を使用することは賢明ですが、不適切な実施はセキュリティ上のエラーを引き起こす可能性があります。
例 1: 次の Java コードはユーザー制御入力変数 elements を HTML サニタイザー ポリシーの構築に使用します。


...
String elements = prop.getProperty("AllowedElements");
...
public static final PolicyFactory POLICY_DEFINITION = new HtmlPolicyBuilder()
.allowElements(elements)
.toFactory();

....


悪意あるユーザーは elements に <script> のような危険な要素を入力して HTML サニタイザー ポリシーがそのような危険な要素を受け入れるようにする可能性があります。

References
[1] OWASP Cross-Site Scripting (XSS) Prevention Cheat Sheet
[2] Understanding Malicious Content Mitigation for Web Developers CERT
[3] HTML 4.01 Specification W3
[4] Standards Mapping - Common Weakness Enumeration CWE ID 79, CWE ID 80
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [2] CWE ID 079
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [1] CWE ID 079
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [2] CWE ID 079
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [2] CWE ID 079
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [2] CWE ID 079
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [1] CWE ID 079
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001310
[12] Standards Mapping - FIPS200 SI
[13] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1), SI-15 Information Output Filtering (P0)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation, SI-15 Information Output Filtering
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.3.3 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3)
[17] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[18] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[19] Standards Mapping - OWASP Top 10 2004 A4 Cross Site Scripting
[20] Standards Mapping - OWASP Top 10 2007 A1 Cross Site Scripting (XSS)
[21] Standards Mapping - OWASP Top 10 2010 A2 Cross-Site Scripting (XSS)
[22] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[23] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[24] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.7
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.7
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.7
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.7
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.7
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation, Control Objective C.3.2 - Web Software Attack Mitigation
[37] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 079
[38] Standards Mapping - SANS Top 25 2010 Insecure Interaction - CWE ID 079
[39] Standards Mapping - SANS Top 25 2011 Insecure Interaction - CWE ID 079
[40] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3580 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3580 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3580 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3580 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3580 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3580 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3580 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002530 CAT II
[50] Standards Mapping - Web Application Security Consortium Version 2.00 Cross-Site Scripting (WASC-08)
[51] Standards Mapping - Web Application Security Consortium 24 + 2 Cross-Site Scripting
desc.dataflow.java.insecure_sanitizer_policy
Abstract
アプリケーションではカスタム SSL インターフェースが実装されます。
Explanation
SSL 標準では、SSL 検証チェックをクライアント側で行う方法についてのガイドラインが用意されています。ただし、ガイドラインは標準の一部ではありません。つまり、検証ロジックの実装はアプリケーション開発者に委ねられています。

調査によれば、SSL 標準仕様の複雑さとオープンな性質によって、欠陥のないカスタム SSL 実装を行うことを難しくしている陥穽がいくつか存在します。カスタム SSL 実装を使用する Android アプリケーションの大部分は、安全な通信チャネルを提供するのには不十分であり、アプリケーションは中間者 (Man-in-the-Middle) 攻撃に対して脆弱なままになります。
References
[1] Designing for Security Android
[2] S. Fahl, M. Harbach, T. Muders, M. Smith, L. Baumgartner, B. Friesleben Why Eve and Mallory Love Android:An Analysis of Android SSL (In)Security
[3] Standards Mapping - Common Weakness Enumeration CWE ID 296, CWE ID 297, CWE ID 298, CWE ID 299
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[11] Standards Mapping - FIPS200 CM, SC
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.4 Server Communications Security Requirements (L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[16] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[17] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[18] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1
[19] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[20] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[21] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[22] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[61] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.java.insecure_ssl_android_customized_implementation
Abstract
メソッドは SSL 検証チェックを行うことに失敗します。
Explanation
InetAddress を関数パラメーターとする createSocket() 呼び出しでは、ホスト名検証は行われません。

同様に、getInsecure() 呼び出しは、すべての SSL チェックを無効にしたSSL ソケットファクトリを返します。

これら両方により、アプリケーションは中間者 (Man-in-the-Middle) 攻撃を受けやすくなります。

たとえば、https://safesecureserver.banking.com に接続しようとするアプリケーションは、https://hackedserver.banking.com に発行された証明書を容易に受け入れます。これによりアプリケーションは、ハッキングされているサーバーへの不正な SSL 接続によって、機密性の高いユーザー情報をリークさせる可能性があります。
References
[1] Designing for Security Android
[2] S. Fahl, M. Harbach, T. Muders, M. Smith, L. Baumgartner, B. Friesleben Why Eve and Mallory Love Android:An Analysis of Android SSL (In)Security
[3] JavaDoc for Android Android
[4] Standards Mapping - Common Weakness Enumeration CWE ID 297
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[12] Standards Mapping - FIPS200 CM, SC
[13] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[17] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[18] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[19] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1
[20] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[21] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[22] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[23] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[25] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[62] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.java.insecure_ssl_android_socket
Abstract
アプリケーションがコールしているメソッドは、証明書チェーンの検証に適していません。
Explanation
アプリケーションがコールしているメソッドは、サーバーのエンドエンティティ証明書とシステムで信頼されている証明機関 (CA) 証明書の間の有効な信頼パスに含まれない証明書を削除せずに、サーバーから返された全証明書のリストを返します。

攻撃者が侵害された CA の非公開鍵にアクセスできる場合、SSL/TLS 接続を傍受してサーバーから提示された証明書を改変できます。この場合、攻撃者は、サーバーのエンドエンティティ証明書から侵害されたルート CA までの有効な信頼パスを作成し、サーバーから提示された元の証明書の残りを追加できます。

クライアントが証明書のピン留めを使用している場合、クライアントは「ピン留め」された証明書がサーバーから提示された証明書の中に含まれていることを検証します。クライアントが使用するメソッドが、有効なパスに含まれていない証明書を削除せずにサーバーから提示されたすべての証明書を返す場合、攻撃者が有効な侵害された非公開鍵を使用して、侵害された CA と、Web サーバーから提示される元の証明書への有効な信頼パスを提示できるようになる可能性があります。その場合、攻撃者は証明書のピン留め検証を回避できます。
References
[1] An Examination of Ineffective Certificate Pinning Implementations Cigital
[2] Standards Mapping - Common Weakness Enumeration CWE ID 297
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[10] Standards Mapping - FIPS200 CM, SC
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[16] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1, MASVS-NETWORK-2
[18] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[19] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[20] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A07 Identification and Authentication Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[60] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.semantic.java.insecure_ssl_inadequate_certificate_verification
Abstract
デフォルトのプリロードされたシステム証明機関 (CA) を使用して SSL/TLS 接続が作成され、これによって攻撃者が侵害されたルート CA で署名された証明書を使用して中間者 (MiTM) 攻撃を実行し、暗号化通信を傍受できるようになる可能性があります。
Explanation
公開鍵基盤 (PKI) は、信頼できる証明機関 (CA) に基づいていますが、侵害された証明機関の数が増えるとルート証明書を信用できなくなり、その結果、この CA が署名した証明書も信用できなくなります。こうした侵害された証明書を入手した攻撃者は、これらの CA を信頼するすべての SSL/TLS トラフィックを傍受できるようになります。

証明機関の署名を必要とするのは、任意のネットワーク エンドポイントに接続し、それらのエンドポイントの SSL/TLS 証明書にどの CA が署名したかが事前にわからないブラウザーなどの汎用ネットワーク通信ツールです。限られた数のバックエンド サーバーに接続するモバイル アプリケーションでは、これらのサーバーが証明書の署名に使用した信頼できる CA の数を絞り込んで把握できるというメリットがあり、これらの証明書/公開鍵をアプリケーションに「ピン留め」して信頼する対象をアプリケーションが期待する証明書に減らすことができます。

例 1: 次の例では、デフォルトのプリロードされたシステム CA を使用して SSL/TLS 接続を確立しています。

URL url = new URL("https://myserver.org");
URLConnection urlConnection = url.openConnection();
InputStream in = urlConnection.getInputStream();
URLConnection で使用される基礎の SSLSocketFactory は変更されていないため、Android のデフォルト鍵ストアに存在するすべての CA を信頼するデフォルトが使用されます。
References
[1] Your app shouldn't suffer SSL's problems Moxie Marlinspike
[2] Certificate and Public Key Pinning OWASP
[3] Standards Mapping - Common Weakness Enumeration CWE ID 297
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[11] Standards Mapping - FIPS200 CM, SC
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[15] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[17] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[18] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[19] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1, MASVS-NETWORK-2
[20] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[21] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[22] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[23] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[25] Standards Mapping - OWASP Top 10 2021 A07 Identification and Authentication Failures
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[62] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.java.insecure_ssl_overly_broad_certificate_trust
Abstract
デフォルトのプリロードされたシステム証明機関 (CA) を使用して SSL/TLS 接続が作成され、これによって攻撃者が侵害されたルート CA で署名された証明書を使用して中間者 (MiTM) 攻撃を実行し、暗号化通信を傍受できるようになる可能性があります。
Explanation
公開鍵基盤 (PKI) は、信頼できる証明機関 (CA) に基づいていますが、侵害された証明機関の数が増えるとルート証明書を信用できなくなり、その結果、この CA が署名した証明書も信用できなくなります。こうした侵害された証明書を入手した攻撃者は、これらの CA を信頼するすべての SSL/TLS トラフィックを傍受できるようになります。

証明機関の署名を必要とするのは、任意のネットワーク エンドポイントに接続し、それらのエンドポイントの SSL/TLS 証明書にどの CA が署名したかが事前にわからないブラウザーなどの汎用ネットワーク通信ツールです。限られた数のバックエンド サーバーに接続するモバイル アプリケーションでは、これらのサーバーが証明書の署名に使用した信頼できる CA の数を絞り込んで把握できるというメリットがあり、これらの証明書/公開鍵をアプリケーションに「ピン留め」して信頼する対象をアプリケーションが期待する証明書に減らすことができます。

例 1: 次の例では、デフォルトのプリロードされたシステム CA を使用して SSL/TLS 接続を確立しています。

val url = URL("https://myserver.org")
val data = url.readBytes()
URLConnection で使用される基礎の SSLSocketFactory は変更されていないため、Android のデフォルト鍵ストアに存在するすべての CA を信頼するデフォルトが使用されます。
References
[1] Your app shouldn't suffer SSL's problems Moxie Marlinspike
[2] Certificate and Public Key Pinning OWASP
[3] Standards Mapping - Common Weakness Enumeration CWE ID 297
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[11] Standards Mapping - FIPS200 CM, SC
[12] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[15] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[17] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[18] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[19] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1, MASVS-NETWORK-2
[20] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[21] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[22] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[23] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[24] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[25] Standards Mapping - OWASP Top 10 2021 A07 Identification and Authentication Failures
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[62] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.kotlin.insecure_ssl_overly_broad_certificate_trust
Abstract
デフォルトのプリロードされたシステム証明機関 (CA) を使用して SSL/TLS 接続が作成され、これによって攻撃者が侵害されたルート CA で署名された証明書を使用して中間者 (MiTM) 攻撃を実行し、暗号化通信を傍受できるようになる可能性があります。
Explanation
公開鍵基盤 (PKI) は、信頼できる証明機関 (CA) に基づいていますが、侵害された証明機関の数が増えるとルート証明書を信用できなくなり、その結果、この CA が署名した証明書も信用できなくなります。こうした侵害された証明書を入手した攻撃者は、これらの CA を信頼するすべての SSL/TLS トラフィックを傍受できるようになります。

証明機関の署名を必要とするのは、任意のネットワーク エンドポイントに接続し、それらのエンドポイントの SSL/TLS 証明書にどの CA が署名したかが事前にわからないブラウザーなどの汎用ネットワーク通信ツールです。限られた数のバックエンド サーバーに接続するモバイル アプリケーションでは、これらのサーバーが証明書の署名に使用した信頼できる CA の数を絞り込んで把握できるというメリットがあり、これらの証明書/公開鍵をアプリケーションに「ピン留め」して信頼する対象をアプリケーションが期待する証明書に減らすことができます。

例 1: 次の例では、デフォルトのプリロードされたシステム CA を使用して SSL/TLS 接続を確立しています。

NSString* requestString = @"https://myserver.org";
NSURL* requestUrl = [NSURL URLWithString:requestString];
NSURLRequest* request = [NSURLRequest requestWithURL:requestUrl
cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
timeoutInterval:10.0f];
NSURLConnection* connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];


証明書の検証を処理するための NSURLConnectionDelegate メソッドが定義されていないため、iOS のデフォルト鍵ストアに存在するすべての CA を信頼するシステム メソッドが使用されます。
References
[1] Your app shouldn't suffer SSL's problems Moxie Marlinspike
[2] Certificate and Public Key Pinning OWASP
[3] HTTPS Server Trust Evaluation Apple
[4] Standards Mapping - Common Weakness Enumeration CWE ID 297
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[12] Standards Mapping - FIPS200 CM, SC
[13] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[16] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[17] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[18] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[19] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[20] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1, MASVS-NETWORK-2
[21] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[22] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[23] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[24] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[25] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[26] Standards Mapping - OWASP Top 10 2021 A07 Identification and Authentication Failures
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[35] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[38] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[63] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.objc.insecure_ssl_overly_broad_certificate_trust
Abstract
デフォルトのプリロードされたシステム証明機関 (CA) を使用して SSL/TLS 接続が作成され、これによって攻撃者が侵害されたルート CA で署名された証明書を使用して中間者 (MiTM) 攻撃を実行し、暗号化通信を傍受できるようになる可能性があります。
Explanation
公開鍵基盤 (PKI) は、信頼できる証明機関 (CA) に基づいていますが、侵害された証明機関の数が増えるとルート証明書を信用できなくなり、その結果、この CA が署名した証明書も信用できなくなります。こうした侵害された証明書を入手した攻撃者は、これらの CA を信頼するすべての SSL/TLS トラフィックを傍受できるようになります。

証明機関の署名を必要とするのは、任意のネットワーク エンドポイントに接続し、それらのエンドポイントの SSL/TLS 証明書にどの CA が署名したかが事前にわからないブラウザーなどの汎用ネットワーク通信ツールです。限られた数のバックエンド サーバーに接続するモバイル アプリケーションでは、これらのサーバーが証明書の署名に使用した信頼できる CA の数を絞り込んで把握できるというメリットがあり、これらの証明書/公開鍵をアプリケーションに「ピン留め」して信頼する対象をアプリケーションが期待する証明書に減らすことができます。

例 1: 次の例では、デフォルトのプリロードされたシステム CA を使用して SSL/TLS 接続を確立しています。

let requestString = NSURL(string: "https://myserver.org")
let requestUrl : NSURL = NSURL(string:requestString)!;
let request : NSURLRequest = NSURLRequest(URL:requestUrl);
let connection : NSURLConnection = NSURLConnection(request:request, delegate:self)!;


証明書の検証を処理するための NSURLConnectionDelegate メソッドが定義されていないため、iOS のデフォルト鍵ストアに存在するすべての CA を信頼するシステム メソッドが使用されます。
References
[1] Your app shouldn't suffer SSL's problems Moxie Marlinspike
[2] Certificate and Public Key Pinning OWASP
[3] HTTPS Server Trust Evaluation Apple
[4] Standards Mapping - Common Weakness Enumeration CWE ID 297
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287, [25] CWE ID 295
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000185, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422
[12] Standards Mapping - FIPS200 CM, SC
[13] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), IA-2 Identification and Authentication (Organizational Users) (P1), IA-5 Authenticator Management (P1), SC-8 Transmission Confidentiality and Integrity (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, IA-2 Identification and Authentication (Organizational Users), IA-5 Authenticator Management, SC-8 Transmission Confidentiality and Integrity
[16] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[17] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 9.2.1 Server Communications Security Requirements (L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[18] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[19] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[20] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1, MASVS-NETWORK-2
[21] Standards Mapping - OWASP Top 10 2004 A3 Broken Authentication and Session Management
[22] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[23] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[24] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[25] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[26] Standards Mapping - OWASP Top 10 2021 A07 Identification and Authentication Failures
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[35] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 4.2.1, Requirement 6.2.4
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[38] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[61] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-000590 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-001810 CAT I, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[62] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[63] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.swift.insecure_ssl_overly_broad_certificate_trust