界: Input Validation and Representation

入力の検証や表現の問題は、メタキャラクター、代替エンコーディング、数値表現などによって引き起こされます。セキュリティの問題は、入力を信頼することに起因します。この問題に含まれるのは、「Buffer Overflow」、「Cross-Site Scripting」攻撃、「SQL Injection」などです。

183 見つかった項目
脆弱性
Abstract
攻撃者は、特別に細工されたデータを入力して、プログラムのデータ構造の実装を変更または定義でき、これが、スタックの枯渇によるサービス拒否につながるおそれがあります。
Explanation
プログラムが、データ構造の実装を変更または定義するために直接使用するユーザー指定のデータは、スタックの枯渇の影響を受けやすくなります。たとえばユーザーが、再帰的に処理されるリンクされたデータ構造に循環リンクを作成できる場合、これは無限の再帰につながり、スタックの枯渇を引き起こす可能性があります。

例 1: 次のコード スニペットは、この脆弱性を、Apache Log4j2 を使用して示しています。

Marker child = MarkerManager.getMarker("child");
Marker parent = MarkerManager.getMarker("parent");

child.addParents(MarkerManager.getMarker(userInput));
parent.addParents(MarkerManager.getMarker(userInput2));

String toInfinity = child.toString();


この小さなプログラムにより、ユーザーは、childparent の親マーカーを、ユーザー定義のマーカーに設定できます。ユーザーが、child の親を parent と入力し、parent の親を child と入力すると、マーカー データ構造に循環リンクが作成されます。循環リンクを含むデータ構造で再帰的な toString メソッドを実行すると、プログラムはスタック オーバーフロー例外をスローしてクラッシュします。これが、スタックの枯渇によるサービス拒否を引き起こします。
References
[1] DOS-1: Beware of activities that may use disproportionate resources Oracle
[2] Standards Mapping - Common Weakness Enumeration CWE ID 730, CWE ID 674
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001094, CCI-001310
[4] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-5 Denial of Service Protection (P1), SI-10 Information Input Validation (P1)
[5] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-5 Denial of Service Protection, SI-10 Information Input Validation
[6] Standards Mapping - OWASP API 2023 API4 Unrestricted Resource Consumption
[7] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[8] Standards Mapping - OWASP Top 10 2004 A9 Application Denial of Service
[9] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.6
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6
[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 4.2 - Critical Asset Protection
[16] 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
[17] 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, Control Objective C.3.3 - Web Software Attack Mitigation
[18] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP6080 CAT II
[19] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP6080 CAT II
[20] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP6080 CAT II
[21] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP6080 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP6080 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP6080 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP6080 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002400 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002400 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002400 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002400 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002400 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002400 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002400 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002400 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002400 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002400 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002400 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002400 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002400 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002400 CAT II, APSC-DV-002530 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002400 CAT II, APSC-DV-002530 CAT II
[40] Standards Mapping - Web Application Security Consortium Version 2.00 Denial of Service (WASC-10)
[41] Standards Mapping - Web Application Security Consortium 24 + 2 Denial of Service
desc.dataflow.java.denial_of_service_stack_exhaustion
Abstract
デフォルトのバッキング配列サイズで初期化された StringBuilder または StringBuffer インスタンスに信頼できないデータを追加すると、JVM がヒープ メモリ領域を過剰に消費するようになる可能性があります。
Explanation
デフォルトのバッキング文字配列サイズ (16) で初期化された StringBuilder または StringBuffer インスタンスにユーザー制御のデータを追加すると、基礎となる配列をユーザーのデータに合わせてサイズ変更するときにアプリケーションが大量のヒープ メモリを消費するようになる可能性があります。StringBuilder または StringBuffer インスタンスにデータが追加されると、インスタンスは、バッキング文字配列にデータを保存できる十分な空き領域があるかどうかを判断します。データが適合しない場合、StringBuilder または StringBuffer インスタンスは前の配列サイズの 2 倍以上の容量を持つ新しい配列を作成します。古い配列はガベージ コレクトされるまでヒープ内に残ります。攻撃者はこの実装の詳細を利用して、Denial of Service (DoS) 攻撃を実行する可能性があります。

例 1: デフォルトのコンストラクタで初期化された StringBuilder インスタンスにユーザー制御のデータが追加されます。

...
StringBuilder sb = new StringBuilder();
final String lineSeparator = System.lineSeparator();
String[] labels = request.getParameterValues("label");
for (String label : labels) {
sb.append(label).append(lineSeparator);
}
...
References
[1] DOS-1: Beware of activities that may use disproportionate resources Oracle
[2] MSC05-J. Do not exhaust heap space CERT
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001094, CCI-001310
[4] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-5 Denial of Service Protection (P1), SI-10 Information Input Validation (P1)
[5] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-5 Denial of Service Protection, SI-10 Information Input Validation
[6] Standards Mapping - OWASP API 2023 API4 Unrestricted Resource Consumption
[7] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[8] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[9] Standards Mapping - OWASP Top 10 2004 A9 Application Denial of Service
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[18] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[19] 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
[20] 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
[21] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 754
[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 APP6080 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP6080 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002400 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002400 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002400 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002400 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002400 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002400 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002400 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002400 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002400 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002400 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002400 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002400 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002400 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002400 CAT II, APSC-DV-002530 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002400 CAT II, APSC-DV-002530 CAT II
[44] Standards Mapping - Web Application Security Consortium Version 2.00 Denial of Service (WASC-10)
desc.dataflow.java.denial_of_service_stringbuilder
Abstract
デフォルトのバッキング配列サイズで初期化された StringBuilder または StringBuffer インスタンスに信頼できないデータを追加すると、JVM がヒープ メモリ領域を過剰に消費するようになる可能性があります。
Explanation
デフォルトのバッキング文字配列サイズ (16) で初期化された StringBuilder または StringBuffer インスタンスにユーザー制御のデータを追加すると、基礎となる配列をユーザーのデータに合わせてサイズ変更するときにアプリケーションが大量のヒープ メモリを消費するようになる可能性があります。StringBuilder または StringBuffer インスタンスにデータが追加されると、インスタンスは、バッキング文字配列にデータを保存できる十分な空き領域があるかどうかを判断します。データが適合しない場合、StringBuilder または StringBuffer インスタンスは前の配列サイズの 2 倍以上の容量を持つ新しい配列を作成します。古い配列はガベージ コレクトされるまでヒープ内に残ります。攻撃者はこの実装の詳細を利用して、Denial of Service (DoS) 攻撃を実行する可能性があります。

例 1: デフォルトのコンストラクタで初期化された StringBuilder インスタンスにユーザー制御のデータが追加されます。

...
val sb = StringBuilder()
val labels = request.getParameterValues("label")
for (label in labels) {
sb.appendln(label)
}
...
References
[1] DOS-1: Beware of activities that may use disproportionate resources Oracle
[2] MSC05-J. Do not exhaust heap space CERT
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001094, CCI-001310
[4] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-5 Denial of Service Protection (P1), SI-10 Information Input Validation (P1)
[5] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-5 Denial of Service Protection, SI-10 Information Input Validation
[6] Standards Mapping - OWASP API 2023 API4 Unrestricted Resource Consumption
[7] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[8] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[9] Standards Mapping - OWASP Top 10 2004 A9 Application Denial of Service
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[18] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[19] 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
[20] 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
[21] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 754
[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 APP6080 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP6080 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002400 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002400 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002400 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002400 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002400 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002400 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002400 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002400 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002400 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002400 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002400 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002400 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002400 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002400 CAT II, APSC-DV-002530 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002400 CAT II, APSC-DV-002530 CAT II
[44] Standards Mapping - Web Application Security Consortium Version 2.00 Denial of Service (WASC-10)
desc.dataflow.kotlin.denial_of_service_stringbuilder
Abstract
既知の好ましくないクラス (拒否リスト) のデシリアライズの防止に基づく防衛的なデシリアライズでは、攻撃者がこの防御をすり抜け、無用にさせる可能性があります。
Explanation
先読みデシリアライズという防衛的なデシリアライズ技術を実装することで、アプリケーションは実際にデシリアライズされる前にデシリアライズされたクラスをのぞき見することができます。



拒否リストは、新しいガジェット チェーン、デシリアライズ コールバック内でネストされたデシリアライズを実行するラップされたパッケージまたはクラスによって容易にすり抜けることができます。
References
[1] Fortify Software Security Research The perils of Java deserialization
[2] Fortify Application Defender
[3] Oracle Java Serialization
[4] IBM Look-ahead Java deserialization
[5] OWASP Deserialization of untrusted data
[6] Standards Mapping - Common Weakness Enumeration CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[8] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[9] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[10] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[11] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[12] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[13] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[14] Standards Mapping - FIPS200 SI
[15] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[16] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[17] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[18] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[19] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[20] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[21] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[22] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[23] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[24] Standards Mapping - OWASP Top 10 2010 A1 Injection
[25] Standards Mapping - OWASP Top 10 2013 A1 Injection
[26] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[27] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[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 6.2.4
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[38] 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
[39] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[40] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[41] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[61] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[62] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[63] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.semantic.java.deserialization_bad_practice_deny_list
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例において、レポートは実行されるコマンドを指定することをユーザーに許してしまう基本的な計算機能を実装しています。


...
user_ops = request->get_form_field( 'operation' ).
CONCATENATE: 'PROGRAM zsample.| FORM calculation. |' INTO code_string,
calculator_code_begin user_ops calculator_code_end INTO code_string,
'ENDFORM.|' INTO code_string.
SPLIT code_string AT '|' INTO TABLE code_table.
GENERATE SUBROUTINE POOL code_table NAME calc_prog.
PERFORM calculation IN PROGRAM calc_prog.
...
operation パラメーターが悪意のない値である場合、プログラムは正常に動作します。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、挿入されたコードによってシステム リソースにアクセスする場合や、システム コマンドを実行する場合に、より危険性が高まります。たとえば、攻撃者が "MOVE 'shutdown -h now' を cmd に指定した場合、CALL 'SYSTEM' ID 'COMMAND' FIELD cmd ID 'TAB' FIELD TABL[]." を operation の値として指定すると、ホスト システムでシャットダウン コマンドが実行されます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.abap.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
var params:Object = LoaderInfo(this.root.loaderInfo).parameters;
var userOps:String = String(params["operation"]);
result = ExternalInterface.call("eval", userOps);
...
operation パラメーターが "8 + 7 * 2"などの悪意のない値である場合、プログラムは正しく動作します。この場合、result 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。ActionScript の場合、攻撃者はこの脆弱性を利用してクロスサイト スクリプト攻撃を実行できます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.actionscript.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
public static object CEval(string sCSCode)
{
CodeDomProvider icc = CodeDomProvider.CreateProvider("CSharp");
CompilerParameters cparam = new CompilerParameters();
cparam.ReferencedAssemblies.Add("system.dll");
cparam.CompilerOptions = "/t:library";
cparam.GenerateInMemory = true;

StringBuilder sb_code = new StringBuilder("");
sb_code.Append("using System;\n");
sb_code.Append("namespace Fortify_CodeEval{ \n");
sb_code.Append("public class FortifyCodeEval{ \n");
sb_code.Append("public object EvalCode(){\n");
sb_code.Append(sCSCode + "\n");
sb_code.Append("} \n");
sb_code.Append("} \n");
sb_code.Append("}\n");

CompilerResults cr = icc.CompileAssemblyFromSource(cparam, sb_code.ToString());
if (cr.Errors.Count > 0)
{
logger.WriteLine("ERROR: " + cr.Errors[0].ErrorText);
return null;
}

System.Reflection.Assembly a = cr.CompiledAssembly;
object o = a.CreateInstance("Fortify_CodeEval.FortifyCodeEval");

Type t = o.GetType();
MethodInfo mi = t.GetMethod("EvalCode");

object s = mi.Invoke(o, null);
return s;
}
...


このプログラムは、sCSCode パラメーターが "return 8 + 7 * 2" などの無害な値であれば正しく動作し、その場合、関数 CEval の戻り値は 22 となります。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。たとえば、.Net では Windows API の呼び出しが可能です。攻撃者が operation の値として " return System.Diagnostics.Process.Start(\"shutdown\", \"/s /t 0\");" を指定した場合、ホスト システムでは shutdown コマンドが実行されます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.dotnet.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
ScriptEngine scriptEngine = scriptEngineManager.getEngineByExtension("js");
userOps = request.getParameter("operation");
Object result = scriptEngine.eval(userOps);
...
operation パラメーターが「8 + 7 * 2」などの悪意のない値である場合、プログラムは正しく動作します。この場合、result 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。たとえば、JavaScript で Java オブジェクトの呼び出しが可能です。攻撃者が operation の値として " java.lang.Runtime.getRuntime().exec("shutdown -h now")" を指定すると、ホスト システムで shutdown コマンドが実行されます。
References
[1] INJECT-8: Take care interpreting untrusted code Oracle
[2] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A1 Injection
[22] Standards Mapping - OWASP Top 10 2021 A03 Injection
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[36] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[37] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
userOp = form.operation.value;
calcResult = eval(userOp);
...
operation パラメーターが「8 + 7 * 2」などの悪意のない値である場合、プログラムは正しく動作します。この場合、calcResult 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。JavaScript の場合、攻撃者はこの脆弱性を利用してクロスサイト スクリプト攻撃を実行できます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.javascript.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: 次のコードは、UITextField からの入力を使用して、WKWebView 内でコンテンツの背景色を動的に変更します。


...
@property (strong, nonatomic) WKWebView *webView;
@property (strong, nonatomic) UITextField *inputTextField;
...
[_webView evaluateJavaScript:[NSString stringWithFormat:@"document.body.style.backgroundColor="%@";", _inputTextField.text] completionHandler:nil];
...


プログラムは、UITextField の入力が "blue" などの無害の値であれば正しく作動し、その場合、webView 内の <body> 要素は青い背景のスタイルになります。一方、攻撃者が悪意があるにもかかわらず有効な入力を使用する場合は、任意の JavaScript コードを実行できる可能性があります。たとえば、JavaScript は cookie など特定タイプの個人情報にアクセスできるので、攻撃者が "white";document.body.innerHTML=document.cookie;"" を UITextField への入力として指定すると、cookie 情報が可視的にそのページに書き込まれます。このような攻撃は、基盤の言語がシステム リソースへのアクセスを提供したりシステム コマンドの実行を可能にしたりする場合にさらに危険になります。そのようなシナリオでは、挿入されたコードが親プロセスの全権限とともに実行されるからです。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.objc.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
$userOps = $_GET['operation'];
$result = eval($userOps);
...
operation パラメーターが「8 + 7 * 2」などの悪意のない値である場合、プログラムは正しく動作します。この場合、result 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。たとえば、攻撃者が operation の値として " exec('shutdown -h now')" を指定した場合、ホスト システムでは shutdown コマンドが実行されます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.php.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
userOps = request.GET['operation']
result = eval(userOps)
...
operation パラメーターが「8 + 7 * 2」などの悪意のない値である場合、プログラムは正しく動作します。この場合、result 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。たとえば、攻撃者が operation の値として " os.system('shutdown -h now')" を指定した場合、ホスト システムでは shutdown コマンドが実行されます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.python.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。
例 1: このコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
user_ops = req['operation']
result = eval(user_ops)
...
operation パラメーターが「8 + 7 * 2」などの悪意のない値である場合、プログラムは正しく動作します。この場合、result 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。Ruby では、これは許可されます。また、行をセミコロン (;) で区切ることで複数のコマンドを実行できるため、プログラムを不正使用しなくても、単純な挿入で多くのコマンドを実行することもできるようになります。
攻撃者がパラメーター operation "system(\"nc -l 4444 &\");8+7*2" を送信すると、ポート 4444 が開いてマシン上の接続をリスンしますが、result には値 22 を返します。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.ruby.dynamic_code_evaluation_code_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: 次のコードは、UITextField からの入力を使用して、WKWebView 内でコンテンツの背景色を動的に変更します。


...
var webView : WKWebView
var inputTextField : UITextField
...
webView.evaluateJavaScript("document.body.style.backgroundColor="\(inputTextField.text)";" completionHandler:nil)
...


プログラムは、UITextField の入力が "blue" などの無害の値であれば正しく作動し、その場合、webView 内の <body> 要素は青い背景のスタイルになります。一方、攻撃者が悪意があるにもかかわらず有効な入力を使用する場合は、任意の JavaScript コードを実行できる可能性があります。たとえば、JavaScript は cookie など特定タイプの個人情報にアクセスできるので、攻撃者が "white";document.body.innerHTML=document.cookie;"" を UITextField への入力として指定すると、cookie 情報が可視的にそのページに書き込まれます。このような攻撃は、基盤の言語がシステム リソースへのアクセスを提供したりシステム コマンドの実行を可能にしたりする場合にさらに危険になります。そのようなシナリオでは、挿入されたコードが親プロセスの全権限とともに実行されるからです。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.swift.dynamic_code_evaluation_code_injection
Abstract
信頼できないソースからの任意のソース命令を実行すると、悪意のあるコードが実行される可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。ユーザー入力の命令をデータに対して実行する必要があるが、ユーザー入力を解釈するコードを実装する代わりにプログラミング言語の構造体を利用することをプログラマが希望している場合に、この機能が役立ちます。ユーザーが入力する命令は、アクティブなユーザーオブジェクトに関する小規模な計算やユーザーオブジェクトの状態の変更など、害のない操作であることが想定されています。しかし、プログラマが不注意であった場合、攻撃者はプログラマの意図していない操作を指定できる可能性があります。

例 1: 基本となるプログラミング言語の構造体がユーザーによって指定される可能性がある典型的なアプリケーションとして、計算機能が挙げられます。次の ASP コードは、ユーザーが入力した基本的な算術操作を受け入れて計算し結果を返しています。


...
strUserOp = Request.Form('operation')
strResult = Eval(strUserOp)
...


プログラムの意図したとおりの動作は、operation パラメーターが"8 + 7 * 2" である例に示されます。strResult 変数は、値 22 を戻します。しかし、ユーザーが有効なそのほかの言語操作を指定する場合、それらの操作は実行されるだけでなく、親プロセスの完全な権限で実行されます。基礎となる言語によってシステムリソースにアクセスできる場合やシステムコマンドの実行が認められている場合、任意のコード実行がもたらす危険性はより高まります。たとえば、攻撃者が operation に " Shell('C:\WINDOWS\SYSTEM32\TSSHUTDN.EXE 0 /DELAY:0 /POWERDOWN')" を指定した場合、ホスト システムでは shutdown コマンドが実行されます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.5.4 Deserialization Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4, MASVS-PLATFORM-2
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.vb.dynamic_code_evaluation_code_injection
Abstract
未検証のユーザー入力が動的に実行されるコードの実行時環境に影響を与えると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な操作の実行が可能です。コード操作の脆弱性が発生するのは、ユーザが指定したデータによって、動的に実行されるコードの実行時環境の一部が変更された場合です。適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この例では、アプリケーションが Web アプリケーションからスクリプト実行スコープを取得します。


...
ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
ScriptEngine scriptEngine = scriptEngineManager.getEngineByExtension("js");
ScriptContext newContext = new SimpleScriptContext();
Bindings engineScope = newContext.getBindings(request.getParameter("userName"));

userOps = request.getParameter("operation");
Object result = scriptEngine.eval(userOps,newContext);
...


プログラムが正常に機能するのは、page_scope パラメーターが予期していたユーザー名である場合です。しかし、攻撃者が GLOBAL_SCOPE の値を指定した場合、同じ ScriptEngine によって作成されたすべてのエンジン内のすべての属性にアクセスが可能となります。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 94, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[16] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[17] Standards Mapping - OWASP Top 10 2021 A03 Injection
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[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 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[28] 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
[29] 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
[30] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[31] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[32] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[33] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Process Validation (WASC-40), Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_code_manipulation
Abstract
プログラムは、信頼できないアドレスを使用して JNDI ルックアップを実行します。これにより、攻撃者が任意の Java コードをリモートで実行できるようになる可能性があります。
Explanation
攻撃者が JNDI ルックアップ操作のアドレスを制御できる場合、アドレスを攻撃者が管理するサーバーに向けてカスタム オブジェクト ファクトリのある RMI ストアド オブジェクトに対する JNDI ネーミング リファレンスを返すことによって、リモートで任意のコードを実行できる可能性があります。

例 1: 次のコードは、信頼されていないデータの JNDI ルックアップを実行します。


...
String address = request.getParameter("address");

Properties props = new Properties();
props.put(Provider_URL, "rmi://secure-server:1099/");
InitialContext ctx = new InitialContext(props);
ctx.lookup(address);
References
[1] Trend Micro How the pawn-storm zero day evaded Java’s click-to-play protection
[2] Standards Mapping - Common Weakness Enumeration CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, 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 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[16] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A1 Injection
[22] Standards Mapping - OWASP Top 10 2021 A03 Injection
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_jndi_reference_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: このコード挿入の例では、リクエストパラメーターは評価される razor テンプレートにバインドされます。


...
string name = Request["username"];
string template = "Hello @Model.Name! Welcome " + name + "!";
string result = Razor.Parse(template, new { Name = "World" });
...


プログラムは、operation パラメーターが悪意のない値、たとえば "John" (この場合は result 変数に "Hello World!Welcome John!" の値が割り当てられる) などの場合に正しく動作します。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。たとえば、RazorでC#オブジェクトの呼び出しが可能です。攻撃者がnameの値として" @{ System.Diagnostics.Process proc = new System.Diagnostics.Process(); proc.EnableRaisingEvents=false; proc.StartInfo.FileName=\"calc\"; proc.Start(); }"を指定した場合、ホストシステムではシステムコマンドが実行されます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A3 Malicious File Execution
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.dotnet.dynamic_code_evaluation_script_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
ScriptEngine scriptEngine = scriptEngineManager.getEngineByExtension("js");
userOps = request.getParameter("operation");
Object result = scriptEngine.eval(userOps);
...
operation パラメーターが「8 + 7 * 2」などの悪意のない値である場合、プログラムは正しく動作します。この場合、result 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。たとえば、JavaScript で Java オブジェクトの呼び出しが可能です。攻撃者が operation の値として " java.lang.Runtime.getRuntime().exec("shutdown -h now")" を指定すると、ホスト システムで shutdown コマンドが実行されます。
References
[1] INJECT-8: Take care interpreting untrusted code Oracle
[2] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A3 Malicious File Execution
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A1 Injection
[22] Standards Mapping - OWASP Top 10 2021 A03 Injection
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[36] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[37] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_script_injection
Abstract
実行時にユーザーの制御下にある命令を解釈すると、攻撃者が悪意のあるコードを実行できる可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。この機能により、プログラマはユーザー入力に基づいた動的な命令の実行が可能です。コード挿入の脆弱性が発生するのは、プログラマが「ユーザーから直接入力された命令は、害のない操作 (アクティブなユーザーオブジェクトについての単純な計算や、ユーザーの状態の変更など) のみを実行する」という誤った想定をした場合です。しかし、適切な検証を行わなかった場合、ユーザーがプログラマの意図とは異なる操作を指定する可能性があります。

例 1: この典型的なコード挿入の例では、アプリケーションは、実行するコマンドの指定をユーザーに許可する基本的な計算機能を実装しています。


...
userOp = form.operation.value;
calcResult = eval(userOp);
...
operation パラメーターが「8 + 7 * 2」などの悪意のない値である場合、プログラムは正しく動作します。この場合、calcResult 変数には値 22 が割り当てられます。しかし、攻撃者が有効かつ悪意のある言語操作を指定した場合、指定された操作は親プロセスの完全な権限で実行されます。このような攻撃は、基盤となる言語によってシステムリソースにアクセスできる場合や、システムコマンドの実行が認められている場合に、より危険性が高まります。JavaScript の場合、攻撃者はこの脆弱性を利用してクロスサイト スクリプト攻撃を実行できます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A3 Malicious File Execution
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.javascript.dynamic_code_evaluation_script_injection
Abstract
信頼できないソースからの任意のソース命令を実行すると、悪意のあるコードが実行される可能性があります。
Explanation
最近のプログラミング言語では、ソース命令の動的な解釈が可能です。ユーザー入力の命令をデータに対して実行する必要があるが、ユーザー入力を解釈するコードを実装する代わりにプログラミング言語の構造体を利用することをプログラマが希望している場合に、この機能が役立ちます。ユーザーが入力する命令は、アクティブなユーザーオブジェクトに関する小規模な計算やユーザーオブジェクトの状態の変更など、害のない操作であることが想定されています。しかし、プログラマが不注意であった場合、攻撃者はプログラマの意図していない操作を指定できる可能性があります。

例 1: 基本となるプログラミング言語の構造体がユーザーによって指定される可能性がある典型的なアプリケーションとして、計算機能が挙げられます。次の ASP コードは、ユーザーが入力した基本的な算術操作を受け入れて計算し結果を返しています。


...
strUserOp = Request.Form('operation')
strResult = Eval(strUserOp)
...


プログラムの意図したとおりの動作は、operation パラメーターが"8 + 7 * 2" である例に示されます。strResult 変数は、値 22 を戻します。しかし、ユーザーが有効なそのほかの言語操作を指定する場合、それらの操作は実行されるだけでなく、親プロセスの完全な権限で実行されます。基礎となる言語によってシステムリソースにアクセスできる場合やシステムコマンドの実行が認められている場合、任意のコード実行がもたらす危険性はより高まります。たとえば、攻撃者が operation に " Shell('C:\WINDOWS\SYSTEM32\TSSHUTDN.EXE 0 /DELAY:0 /POWERDOWN')" を指定した場合、ホスト システムでは shutdown コマンドが実行されます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 95, CWE ID 494
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[4] Standards Mapping - Common Weakness Enumeration Top 25 2022 [25] CWE ID 094
[5] Standards Mapping - Common Weakness Enumeration Top 25 2023 [23] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[8] Standards Mapping - FIPS200 SI
[9] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.14.2 Configuration Architectural Requirements (L2 L3), 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 10.3.2 Deployed Application Integrity Controls (L1 L2 L3), 12.3.3 File Execution Requirements (L1 L2 L3), 14.2.3 Dependency (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A3 Malicious File Execution
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A1 Injection
[21] Standards Mapping - OWASP Top 10 2021 A03 Injection
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116, Risky Resource Management - CWE ID 094
[35] Standards Mapping - SANS Top 25 2010 Risky Resource Management - CWE ID 494
[36] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 494
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.vb.dynamic_code_evaluation_script_injection
Abstract
特定のクラスにシリアライズ可能な Delegate フィールドが含まれているため、クラスをデシリアライズするときに任意のコードが実行される脆弱性が生じます。
Explanation
Delegate 型は、ユーザー コード内で後で呼び出すことができるメソッド呼び出しへの参照を保持するために使用されます。.NET は Delegate 型のシリアライズ中にカスタム シリアライゼーションを使用し、System.DelegateSerializationHolder クラスを利用して Delegate にアタッチまたはサブスクライブされたメソッド情報を格納します。Delegate オブジェクトのシリアライズされたストリームは、永続ストレージやリモート アプリケーションへの受け渡しには適していません。攻撃者がメソッド情報を悪意のあるオブジェクト グラフを指す情報に置き換えることができれば、任意のコードの実行が可能になるためです。

例 1: 次のクラスにはシリアライズ可能な Delegate フィールドが含まれ、Executor メソッドで呼び出されています。


...
[Serializable]
class DynamicRunnner
{
Delegate _del;
string[] _arg;
public DynamicRunnner(Delegate dval, params string[] arg)
{
_del = dval;
_arg = arg;
}
public bool Executor()
{
return (bool)_del.DynamicInvoke(_arg);
}
}
...


開発者が、Example 1 に記述されたクラスの信頼できないストリームをデシリアライズすると、攻撃者がそのメソッド情報を Process.Start を参照する情報に置き換え、Executor メソッドがコールされたときに任意のプロセスが作成されます。
References
[1] Security Considerations for Data
[2] James Forshaw Are you my Type? Breaking .NET Through Serialization
[3] David LeBlanc, Michael Howard Writing Secure Code (2nd Edition) Microsoft Press
[4] Standards Mapping - Common Weakness Enumeration CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[12] Standards Mapping - FIPS200 SI
[13] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization 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 A6 Injection Flaws
[20] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[21] Standards Mapping - OWASP Top 10 2010 A1 Injection
[22] Standards Mapping - OWASP Top 10 2013 A1 Injection
[23] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[24] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[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, Control Objective C.3.5 - Web Software Attack Mitigation
[37] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.dotnet.dynamic_code_evaluation_serializable_delegate
Abstract
BeanUtils を使用してユーザー制御オブジェクトをデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になります。
Explanation
BeanUtils は、ユーザー制御データ (この場合 Redis ハッシュ) をデシリアライズするために使用されます。これには、オブジェクト フィールドに割り当てられる型識別子と値が含まれています。 BeanUtils はこれらのフィールドのセッターを呼び出してオブジェクトを再構成し、攻撃者が任意のデータを任意のクラス セッターに渡せるようにします。 攻撃者が再構築されるオブジェクトのクラスを指定でき、アプリケーションでユーザー制御データを含む任意のセッターを実行するように強制できる場合、Redis ハッシュのデシリアライゼーション時に任意のコードを実行できることがあります。

例 1: 次のコードは、BeanUtilsHashMapper を使用して Redis ハッシュをデシリアライズし、攻撃者がこのようなハッシュを制御して任意のコードを実行できるようにします。


HashMapper<Person, String, String> hashMapper = new BeanUtilsHashMapper<Person>(Person.class);
Person p = hashMapper.fromHash(untrusted_map);
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[17] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2010 A1 Injection
[19] Standards Mapping - OWASP Top 10 2013 A1 Injection
[20] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[21] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[32] 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
[33] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[34] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_unsafe_beanutils_deserialization
Abstract
ユーザー制御オブジェクトのストリームを実行時にデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になることがあります。
Explanation
.NET シリアライゼーションでは、オブジェクト グラフはオブジェクト自体と必要なメタデータを含むバイトまたは XML ストリームに変換され、そのストリームからそれらが再構築されます。開発者はカスタム コードを作成して .NET オブジェクトのデシリアライズのプロセスを支援できます。その際には、デシリアライズされたオブジェクトを別のオブジェクトまたはプロキシで置き換えられます。カスタマイズされたデシリアライズ プロセスは、オブジェクトがアプリケーションに返され、目的のタイプにキャストされる前に、オブジェクトの再構築中に実行されます。開発者が目的のタイプを強制するまでに、コードはすでに実行されていることがあります。

例 1: 次の関数は接続から Stream オブジェクトを入力として受け取り、デシリアライズして .NET オブジェクトに戻します。次に文字列オブジェクトのリストにキャストしてから結果を返します。


...
List <string> Deserialize(Stream input)
{
var bf = new BinaryFormatter();
var result = (List <string>)bf.Deserialize(input);
return result;
}
...


わかりやすくするため、Example 1 は次のように書き換えることができます。

例 2:

...
List <string> Deserialize(Stream input)
{
var bf = new BinaryFormatter();
object tmp = bf.Deserialize(input);
List <string> result = (List <string>)tmp;
return result;
}
...
Example 2 では、入力ストリームが有効であれば、そのタイプが List <string> であるかどうかに関係なく、デシリアライズ操作は成功します。

カスタムのデシリアライズ ルーチンは、bin フォルダまたは GAC に存在している必要があるシリアライズ可能なクラスで定義され、攻撃者が挿入できないので、これらの攻撃による悪用の可能性はアプリケーション環境で利用可能なクラスに依存します。残念ながら、一般的なサードパーティのクラスまたは .NET のクラスでさえ悪用され、システム リソースを枯渇させたり、悪意あるファイルが展開されたり、任意のコードが実行されたりすることがあります。
References
[1] Security Considerations for Data
[2] James Forshaw Are you my Type? Breaking .NET Through Serialization
[3] David LeBlanc, Michael Howard Writing Secure Code (2nd Edition) Microsoft Press
[4] Standards Mapping - Common Weakness Enumeration CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[12] Standards Mapping - FIPS200 SI
[13] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization 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 Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[20] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[21] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[22] Standards Mapping - OWASP Top 10 2010 A1 Injection
[23] Standards Mapping - OWASP Top 10 2013 A1 Injection
[24] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[25] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[36] 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
[37] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[38] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[39] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[61] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.dotnet.dynamic_code_evaluation_unsafe_deserialization
Abstract
ユーザー制御オブジェクトのストリームを実行時にデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になることがあります。
Explanation
Java シリアライゼーションでは、オブジェクト グラフはオブジェクト自体と必要なメタデータを含むバイト ストリームに変換され、バイト ストリームからそれらが再構築されます。開発者はカスタム コードを作成して Java オブジェクトのデシリアライズのプロセスを支援できます。その際には、デシリアライズされたオブジェクトを別のオブジェクトまたはプロキシで置き換えることが可能です。カスタマイズされたデシリアライズ プロセスは、オブジェクトがアプリケーションに返され、目的のタイプにキャストされる前に、オブジェクトの再構築中に実行されます。開発者が目的のタイプを強制するまでに、コードはすでに実行されていることがあります。

カスタムのデシリアライズ ルーチンは、実行時にクラスパスに存在している必要があるシリアライズ可能なクラスで定義され、攻撃者が挿入できないので、これらの攻撃による悪用の可能性はアプリケーション環境で利用可能なクラスに依存します。残念ながら、一般的なサードパーティのクラスまたは JDK のクラスでさえ悪用され、JVM リソースを枯渇させたり、悪意あるファイルが展開されたり、任意のコードが実行されたりすることがあります。
References
[1] Fortify Software Security Research The perils of Java deserialization
[2] Fortify Application Defender
[3] Oracle Java Serialization
[4] IBM Look-ahead Java deserialization
[5] OWASP Deserialization of untrusted data
[6] Standards Mapping - Common Weakness Enumeration CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[8] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[9] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[10] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[11] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[12] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[13] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[14] Standards Mapping - FIPS200 SI
[15] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[16] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[17] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[18] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[19] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[20] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[21] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[22] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[23] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[24] Standards Mapping - OWASP Top 10 2010 A1 Injection
[25] Standards Mapping - OWASP Top 10 2013 A1 Injection
[26] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[27] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[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 6.2.4
[37] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[38] 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
[39] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[40] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[41] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[61] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[62] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[63] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.java.dynamic_code_evaluation_unsafe_deserialization
Abstract
ユーザー制御 Json のストリームをデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になります。
Explanation
オブジェクト グラフを Json フォーマット データに変える Json シリアライゼーション ライブラリは、オブジェクトを Json ストリームから再構築するために必要なメタデータを含む可能性があります。攻撃者が再構築されるオブジェクトのタイプを指定し、アプリケーションでユーザー制御データを含む任意のセッターを実行するように強制できる場合、Json ストリームのデシリアライゼーション時に任意のコードを実行できることがあります。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[22] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.dotnet.dynamic_code_evaluation_unsafe_json_deserialization
Abstract
ユーザー制御 Json のストリームをデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になります。
Explanation
オブジェクト グラフを Json フォーマット データに変える Json シリアライゼーション ライブラリは、オブジェクトを Json ストリームから再構築するために必要なメタデータを含む可能性があります。攻撃者が再構築されるオブジェクトのクラスを指定でき、アプリケーションでユーザー制御データを含む任意のセッターを実行するように強制できる場合、Json ストリームのデシリアライゼーション時に任意のコードを実行できることがあります。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[22] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.java.dynamic_code_evaluation_unsafe_json_deserialization
Abstract
実行時にユーザー制御のデータをデシリアライズすると、攻撃者が任意のコードを実行できる可能性があります。
Explanation
Python の公式ドキュメントに、次のように記載されています。


The pickle module is not intended to be secure against erroneous or maliciously constructed data. Never unpickle data received from an untrusted or unauthenticated source.


Pickle は、開発者がオブジェクトを簡単に送信し、それらをカスタム Pickle 表現にシリアライズするための強力なシリアライズ ライブラリです。Pickle を使用すると、任意のオブジェクトで __reduce__ メソッドを定義することによってデシリアライズする方法を宣言できます。このメソッドは callable およびその引数を戻します。Pickle は、攻撃者が任意のコマンドを実行することを可能にする、新しいオブジェクトを構築するために指定された引数と一緒に関数を呼び出します。
References
[1] Python object serialization Python
[2] Python object serialization Python
[3] Python Library Reference Python
[4] Standards Mapping - Common Weakness Enumeration CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[12] Standards Mapping - FIPS200 SI
[13] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization 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 A6 Injection Flaws
[20] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[21] Standards Mapping - OWASP Top 10 2010 A1 Injection
[22] Standards Mapping - OWASP Top 10 2013 A1 Injection
[23] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[24] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[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, Control Objective C.3.5 - Web Software Attack Mitigation
[37] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.python.dynamic_code_evaluation_unsafe_pickle_deserialization
Abstract
TensorFlow での安全でないデシリアライゼーションを許可すると、ラムダを通じて任意のコードの実行が許可される可能性があり、アプリケーションに重大なセキュリティ リスクをもたらします。
Explanation
TensorFlowを使用する場合、enable_unsafe_deserialization() によって攻撃者がラムダやその他の Python 呼び出し可能オブジェクトをデシリアライズできるようになります。この機能は柔軟性を持たせたい場合や複雑なモデルの復元に役立ちますが、シリアライズされたデータが可能である場合は脆弱性が生じます。

例 1: 次の Python コードは、シリアライズされたデータが安全でない場合、安全でないデシリアライゼーションを有効にするとどのように悪用されるかを示しています。

import tensorflow as tf

tf.keras.config.enable_unsafe_deserialization()

model = tf.keras.models.load_model('evilmodel_tf.keras')
model([])



この例は、データのソースが完全に安全であることを確認せずに enable_unsafe_deserialization() を使用した場合の潜在的な危険性を示しています。
desc.structural.python.dynamic_code_evaluation_unsafe_tensorflow_deserialization
Abstract
ユーザー制御の XML 文書を実行時にデシリアライズすると、攻撃者が悪意のある任意のコードをサーバーで実行できるようになります。
Explanation
XStream ライブラリを使用すると、開発者はオブジェクトを簡単に送信し、それらを XML 文書にシリアライズできます。ただし、XStream のデシリアライズにより、攻撃者がサーバー上で任意の Java コードを実行できる可能性があります。

例 1: 次の Java コードは、信頼されていない入力を処理する XStream のインスタンスを示しています。


XStream xstream = new XStream();
String body = IOUtils.toString(request.getInputStream(), "UTF-8");
Contact expl = (Contact) xstream.fromXML(body);
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[22] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_unsafe_xstream_deserialization
Abstract
ユーザー制御 YAML のストリームをデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になります。
Explanation
オブジェクト グラフを YAML フォーマット データに変換する YAML シリアライゼーション ライブラリは、オブジェクトを YAML ストリームから再構築するために必要なメタデータを含む可能性があります。 攻撃者が再構築されるオブジェクトのクラスを指定でき、アプリケーションでユーザー制御データを含む任意のセッターを実行するように強制できる場合、YAML ストリームのデシリアライゼーション時に任意のコードを実行できることがあります。

: 次の例では、YamlDotNet パーサーを使用して信頼されていない YAML 文字列をデシリアライズします。


var yamlString = getYAMLFromUser();

// Setup the input
var input = new StringReader(yamlString);

// Load the stream
var yaml = new YamlStream();
yaml.Load(input);
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[22] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.dotnet.dynamic_code_evaluation_unsafe_yaml_deserialization
Abstract
ユーザー制御 YAML のストリームをデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になります。
Explanation
オブジェクト グラフを YAML フォーマット データに変換する YAML シリアライゼーション ライブラリは、オブジェクトを YAML ストリームから再構築するために必要なメタデータを含む可能性があります。 攻撃者が再構築されるオブジェクトのクラスを指定でき、アプリケーションでユーザー制御データを含む任意のセッターを実行するように強制できる場合、YAML ストリームのデシリアライゼーション時に任意のコードを実行できることがあります。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[22] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_unsafe_yaml_deserialization
Abstract
ユーザー制御 YAML のストリームをデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になります。
Explanation
オブジェクト グラフを YAML フォーマット データに変換する YAML シリアライゼーション ライブラリは、オブジェクトを YAML ストリームから再構築するために必要なメタデータを含む可能性があります。 攻撃者が再構築されるオブジェクトのクラスを指定でき、アプリケーションでユーザー制御データを含む任意のセッターを実行するように強制できる場合、YAML ストリームのデシリアライゼーション時に任意のコードを実行できることがあります。

例 1: 次の例では、安全でない YAML パーサーを使用して信頼されていない YAML 文字列をデシリアライズします。


var yaml = require('js-yaml');

var untrusted_yaml = getYAMLFromUser();
yaml.load(untrusted_yaml)
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[22] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.javascript.dynamic_code_evaluation_unsafe_yaml_deserialization
Abstract
ユーザー制御 YAML のストリームをデシリアライズすると、攻撃者によるサーバーでの任意のコードの実行、アプリケーション ロジックの悪用、サービス拒否の原因になります。
Explanation
オブジェクト グラフを YAML フォーマット データに変換する YAML シリアライゼーション ライブラリは、オブジェクトを YAML ストリームから再構築するために必要なメタデータを含む可能性があります。 攻撃者が再構築されるオブジェクトのクラスを指定でき、アプリケーションでユーザー制御データを含む任意のセッターを実行するように強制できる場合、YAML ストリームのデシリアライゼーション時に任意のコードを実行できることがあります。

例 1: 次の例では、安全でない YAML ローダーを使用して信頼されていない YAML 文字列をデシリアライズします。


import yaml

yamlString = getYamlFromUser()
yaml.load(yamlString)
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 502
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[9] Standards Mapping - FIPS200 SI
[10] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[15] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[17] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[18] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2010 A1 Injection
[20] Standards Mapping - OWASP Top 10 2013 A1 Injection
[21] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[22] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[33] 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
[34] 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, Control Objective C.3.5 - Web Software Attack Mitigation
[35] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.python.dynamic_code_evaluation_unsafe_yaml_deserialization
Abstract
ユーザー制御の XML 文書を実行時にデシリアライズすると、攻撃者が悪意のある任意のコードをサーバーで実行できるようになります。
Explanation
JDK XMLEncoder および XMLDecoder クラスによって、デベロッパは容易にオブジェクトを保持しそれらを XML 文書にシリアライズできます。一方 XMLEncoder によってデベロッパはメソッドコールをシリアライズでき、攻撃者が XMLDecoder によってデシリアライズされる XML 文書を使用できる場合、その攻撃者はサーバー上で任意のコードを実行できるようになります。

例 1: 次の Java コードは、信頼されていない入力を処理する XMLDecoder のインスタンスを示しています。


XMLDecoder decoder = new XMLDecoder(new InputSource(new InputStreamReader(request.getInputStream(), "UTF-8")));

Object object = decoder.readObject();
decoder.close();
例 1: 次の XML 文書では、ProcessBuilder オブジェクトのインスタンスを作成し、その静的 start() メソッドを呼び出して Windows の電卓を実行します。


<java>
<object class="java.lang.ProcessBuilder">
<array class="java.lang.String" length="1" >
<void index="0">
<string>c:\\windows\\system32\\calc.exe</string>
</void>
</array>
<void method="start"/>
</object>
</java>
References
[1] Oracle Oracle official documentation for XMLDecoder
[2] Standards Mapping - Common Weakness Enumeration CWE ID 502
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001310, CCI-001764, CCI-001774, 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 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[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
[18] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[19] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[20] Standards Mapping - OWASP Top 10 2010 A1 Injection
[21] Standards Mapping - OWASP Top 10 2013 A1 Injection
[22] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization
[23] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[34] 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
[35] 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
[36] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002550 CAT I, APSC-DV-002560 CAT I
[59] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.dynamic_code_evaluation_xmldecoder_injection
Abstract
未検証の SpEL 式の評価はリモートでのコード実行に繋がる可能性があります。
Explanation
Spring Expression Language (略して SpEL) は、実行時にオブジェクト グラフのクエリおよび操作をサポートする強力な式言語です。言語構文は Unified EL に似ていますが、より多くの機能を提供しています。中でも注目すべきはメソッド起動と基本文字列テンプレート機能です。
未検証の式を評価できるため、攻撃者に任意のコードの実行を許可することになります。

例 1: アプリケーションは、ユーザーによって制御される未検証データを使用して、SpEL 式を作成し、評価します。


String expression = request.getParameter("input");
SpelExpressionParser parser = new SpelExpressionParser();
SpelExpression expr = parser.parseRaw(expression);
例 2: アプリケーションは、二重 SpEL 評価を実行する Spring タグでユーザーによって制御される未検証データを使用します。


<spring:message text="" code="${param['message']}"></spring:message>
References
[1] Dan Amodio Remote Code with Expression Language Injection
[2] Expression Language Injection OWASP
[3] CVE-2011-2730 Red Hat
[4] Standards Mapping - Common Weakness Enumeration CWE ID 94, CWE ID 95, CWE ID 917
[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [18] CWE ID 094
[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [17] CWE ID 094
[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [25] CWE ID 077
[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [17] CWE ID 077, [25] CWE ID 094
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [16] CWE ID 077, [23] CWE ID 094
[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [11] CWE ID 094, [13] CWE ID 077
[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002754
[12] Standards Mapping - FIPS200 SI
[13] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.2.4 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.5 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.2.8 Sanitization and Sandboxing Requirements (L1 L2 L3), 5.3.6 Output Encoding and Injection Prevention Requirements (L1 L2 L3)
[17] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[18] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[19] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[20] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[21] Standards Mapping - OWASP Top 10 2010 A1 Injection
[22] Standards Mapping - OWASP Top 10 2013 A1 Injection
[23] Standards Mapping - OWASP Top 10 2017 A1 Injection
[24] Standards Mapping - OWASP Top 10 2021 A03 Injection
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[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 Risky Resource Management - CWE ID 094
[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[60] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.expression_language_injection_spring
Abstract
関数の Format String を攻撃者が制御できる場合、Buffer Overflow の原因になることがあります。
Explanation
Format String の脆弱性が発生するのは次の場合です。

1. 信頼できないソースからアプリケーションにデータが入り込んだ場合。



2. データが Format String 引数として sprintf()FormatMessageW()、または syslog() などの関数に渡される場合。
例 1: 次のコードは、snprintf() を使用してコマンド ライン引数をバッファにコピーしています。


int main(int argc, char **argv){
char buf[128];
...
snprintf(buf,128,argv[1]);
}


このコードを使用して攻撃者はスタックの内容を参照し、一連の書式指定子が含まれているコマンドライン引数を使用してスタックに書き込むことが可能になります。攻撃者は、関数がフォーマットのための引数として取るよりも多くの書式指定子 (%x など) を入力することでスタックから読み取ることができます(この例では、関数はフォーマットのための引数を取っていません)。%n 書式指定子を使用することで攻撃者はスタックに書き込み、snprintf() にそこまでの出力バイト数を指定した引数に書き出させることができます (引数から値を読み出すのが本来の動作です)。この攻撃を高度にしたものは、タイミングをずらして 4 回書き込みを行うことで、スタック上のポインタ値を完全に支配下に置きます。

例 2: 実装によっては、読み取りまたは書き込みを行うメモリ内の場所を制御するフォーマット ディレクティブを入力することによって、さらに進歩した攻撃がいっそう容易になる場合があります。そのようなディレクティブの例を次のコードに示します。これは glibc 用に書かれたものです。


printf("%d %d %1$d %1$d\n", 5, 9);


このコードは次のような出力を生成します。


5 9 5 5


半書き込み (% hn) を使用してメモリ内の任意の DWORD を正確に制御することも可能です。この場合、攻撃者は、Example 1 で挙げたような、タイミングをずらして 4 回書き込みする手間を大幅に軽減することができます。

例 3: 単純な Format String の脆弱性は、多くの場合、無害に見える省略記法が原因です。こうした省略記法の使用は非常に根強い習慣となっているため、プログラマは使用している関数から Format String 引数を予想できることに気づかない場合があります。

たとえば、syslog() 関数は、ときおり次のように使用されます。


...
syslog(LOG_ERR, cmdBuf);
...
syslog() の 2 番目のパラメーターは Format String なので、cmdBuf に含まれる書式指定子は Example 1 に記載したのと同様に解釈されます。

次のコードは、syslog() の正しい使用例です。


...
syslog(LOG_ERR, "%s", cmdBuf);
...
References
[1] T. Newsham Format String Attacks Guardent, Inc.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 134
[3] Standards Mapping - Common Weakness Enumeration Top 25 2024 [12] CWE ID 020
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002754, CCI-002824
[5] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2012 Rule 1.3
[7] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Directive 4.14, Rule 1.3
[8] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C++ Guidelines 2008 Rule 0-3-1
[9] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C++ Guidelines 2023 Rule 4.1.3
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1), SI-16 Memory Protection (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation, SI-16 Memory Protection
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.4.2 Memory/String/Unmanaged Code Requirements (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[16] Standards Mapping - OWASP Top 10 2004 A5 Buffer Overflow
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.5
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.2
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.2
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.2
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.2
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.2
[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 6.2.4
[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, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[28] 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
[29] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 134
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Format String (WASC-06)
[53] Standards Mapping - Web Application Security Consortium 24 + 2 Format String Attack
desc.dataflow.cpp.format_string
Abstract
攻撃者は Format String 引数を制御できるため、バッファ オーバーフローのような攻撃が可能になります。
Explanation
Format String の脆弱性が発生するのは次の場合です。

1. 信頼できないソースからアプリケーションにデータが入り込んだ場合。



2. データが Format String 引数として sprintf()FormatMessageW()syslog()NSLog、または NSString.stringWithFormat などの関数に渡される場合。
例 1: 次のコードは、NSString.stringWithFormat: で Format String としてコマンド ライン引数を使用しています。


int main(int argc, char **argv){
char buf[128];
...
[NSString stringWithFormat:argv[1], argv[2] ];
}


このコードを使用して攻撃者はスタックの内容を参照し、一連の書式指定子が含まれているコマンドライン引数を使用してスタックを破損することが可能になります。攻撃者は、関数がフォーマットのための引数として取るよりも多くの書式指定子 (%x など) を入力することでスタックから読み取ることができます(この例では、関数はフォーマットのための引数を取っていません)。

Objective-C は、古い C の標準ライブラリをサポートします。そのため、アプリケーションで C API が使用されている場合、次の例は悪用可能です。

例 2: 実装によっては、読み取りまたは書き込みを行うメモリ内の場所を制御するフォーマット ディレクティブを入力することによって、さらに進歩した攻撃がいっそう容易になる場合があります。そのようなディレクティブの例を次のコードに示します。これは glibc 用に書かれたものです。


printf("%d %d %1$d %1$d\n", 5, 9);


このコードは次のような出力を生成します。


5 9 5 5


半書き込み (% hn) を使用してメモリ内の任意の DWORD を正確に制御することも可能です。この場合、攻撃者は、Example 1 で挙げたような、タイミングをずらして 4 回書き込みする手間を大幅に軽減することができます。

例 3: 単純な Format String の脆弱性は、多くの場合、無害に見える省略記法が原因です。こうした省略記法の使用は非常に根強い習慣となっているため、プログラマは使用している関数から Format String 引数を予想できることに気づかない場合があります。

たとえば、syslog() 関数は、ときおり次のように使用されます。


...
syslog(LOG_ERR, cmdBuf);
...
syslog() の 2 番目のパラメーターは Format String なので、cmdBuf に含まれる書式指定子は Example 1 に記載したのと同様に解釈されます。

次のコードは、syslog() の正しい使用例です。


...
syslog(LOG_ERR, "%s", cmdBuf);
...
例 4: Apple コア クラスは、Format String の脆弱性を悪用するための方法を提供しています。

たとえば、String.stringByAppendingFormat() 関数は、ときおり次のように使用されます。


...
NSString test = @"Sample Text.";
test = [test stringByAppendingFormat:[MyClass
formatInput:inputControl.text]];
...


stringByAppendingFormat は、渡された NSString の中に含まれている Format String 文字をパースします。

次のコードは、stringByAppendingFormat() の正しい使用例です。


...
NSString test = @"Sample Text.";
test = [test stringByAppendingFormat:@"%@", [MyClass
formatInput:inputControl.text]];
...
References
[1] T. Newsham Format String Attacks Guardent, Inc.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 134
[3] Standards Mapping - Common Weakness Enumeration Top 25 2024 [12] CWE ID 020
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002754, CCI-002824
[5] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[6] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2012 Rule 1.3
[7] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C Guidelines 2023 Directive 4.14, Rule 1.3
[8] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C++ Guidelines 2008 Rule 0-3-1
[9] Standards Mapping - Motor Industry Software Reliability Association (MISRA) C++ Guidelines 2023 Rule 4.1.3
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1), SI-16 Memory Protection (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation, SI-16 Memory Protection
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.4.2 Memory/String/Unmanaged Code Requirements (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[14] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[16] Standards Mapping - OWASP Top 10 2004 A5 Buffer Overflow
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.5
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.2
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.2
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.2
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.2
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.2
[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 6.2.4
[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, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[28] 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
[29] Standards Mapping - SANS Top 25 2011 Risky Resource Management - CWE ID 134
[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3560 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3560 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3560 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I, APSC-DV-002590 CAT I
[52] Standards Mapping - Web Application Security Consortium Version 2.00 Format String (WASC-06)
[53] Standards Mapping - Web Application Security Consortium 24 + 2 Format String Attack
desc.dataflow.objc.format_string
Abstract
攻撃者はスプレッドシートに書き込まれたデータを制御できる可能性があるため、特定のスプレッドシート プロセッサーでファイルを開くユーザーを対象にすることが可能となります。
Explanation
Apache OpenOffice Calc や Microsoft Office Excel などの一般的なスプレッドシート プロセッサーは、強力な式演算をサポートしているため、スプレッドシートを制御している攻撃者は、基盤となるシステムで任意のコマンドを実行したり、スプレッドシートの機密情報を漏洩させたりできる可能性があります。

たとえば、攻撃者は CSV フィールドの一部として次のペイロードを挿入することができます。=cmd|'/C calc.exe'!Z0。スプレッドシートを開くユーザーがドキュメントの生成元を信頼している場合、このユーザーはスプレッドシート プロセッサーに表示されるセキュリティに関するすべてのプロンプトを受け入れて、自分のシステムでペイロードを実行できる (この例では Windows の電卓を開くことができる) 可能性があります。

例 1: 次の例は、サニタイズされていないユーザー制御データを含む CSV レスポンスを生成する ASP.NET コントローラーを示しています。


public void Service()
{
string name = HttpContext.Request["name"];

string data = GenerateCSVFor(name);
HttpContext.Response.Clear();
HttpContext.Response.Buffer = true;
HttpContext.Response.AddHeader("content-disposition", "attachment;filename=file.csv");
HttpContext.Response.Charset = "";
HttpContext.Response.ContentType = "application/csv";
HttpContext.Response.Output.Write(tainted);
HttpContext.Response.Flush();
HttpContext.Response.End();
}
References
[1] Formula Injection Pentest Magazine
[2] Comma Separated Vulnerabilities Context
[3] Standards Mapping - Common Weakness Enumeration CWE ID 1236
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 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 SI-10 Information Input Validation (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[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
[11] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[12] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[13] Standards Mapping - OWASP Top 10 2010 A1 Injection
[14] Standards Mapping - OWASP Top 10 2013 A1 Injection
[15] Standards Mapping - OWASP Top 10 2017 A1 Injection
[16] Standards Mapping - OWASP Top 10 2021 A03 Injection
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[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 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, 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
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3600 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3600 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3600 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3600 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3600 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3600 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3600 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.dotnet.formula_injection
Abstract
攻撃者はスプレッドシートに書き込まれたデータを制御できる可能性があるため、特定のスプレッドシート プロセッサーでファイルを開くユーザーを対象にすることが可能となります。
Explanation
Apache OpenOffice Calc や Microsoft Office Excel などの一般的なスプレッドシート プロセッサーは、強力な式演算をサポートしているため、スプレッドシートを制御している攻撃者は、基盤となるシステムで任意のコマンドを実行したり、スプレッドシートの機密情報を漏洩させたりできる可能性があります。

たとえば、攻撃者は CSV フィールドの一部として次のペイロードを挿入することができます。=cmd|'/C calc.exe'!Z0。スプレッドシートを開くユーザーがドキュメントの生成元を信頼している場合、このユーザーはスプレッドシート プロセッサーに表示されるセキュリティに関するすべてのプロンプトを受け入れて、自分のシステムでペイロードを実行できる (この例では Windows の電卓を開くことができる) 可能性があります。

例 1: 次の例は、サニタイズされていないユーザー制御データを使用して CSV ファイルに書き込みを行っています。


func someHandler(w http.ResponseWriter, r *http.Request){
r.parseForm()
foo := r.FormValue("foo")
...
w := csv.NewWriter(file)
w.Write(foo)
}
References
[1] Formula Injection Pentest Magazine
[2] Comma Separated Vulnerabilities Context
[3] Standards Mapping - Common Weakness Enumeration CWE ID 1236
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 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 SI-10 Information Input Validation (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[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
[11] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[12] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[13] Standards Mapping - OWASP Top 10 2010 A1 Injection
[14] Standards Mapping - OWASP Top 10 2013 A1 Injection
[15] Standards Mapping - OWASP Top 10 2017 A1 Injection
[16] Standards Mapping - OWASP Top 10 2021 A03 Injection
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[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 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, 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
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3600 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3600 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3600 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3600 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3600 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3600 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3600 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.golang.formula_injection
Abstract
攻撃者はスプレッドシートに書き込まれたデータを制御できる可能性があるため、特定のスプレッドシート プロセッサーでファイルを開くユーザーを対象にすることが可能となります。
Explanation
Apache OpenOffice Calc や Microsoft Office Excel などの一般的なスプレッドシート プロセッサーは、強力な式演算をサポートしているため、スプレッドシートを制御している攻撃者は、基盤となるシステムで任意のコマンドを実行したり、スプレッドシートの機密情報を漏洩させたりできる可能性があります。

たとえば、攻撃者は CSV フィールドの一部として次のペイロードを挿入することができます。=cmd|'/C calc.exe'!Z0。スプレッドシートを開くユーザーがドキュメントの生成元を信頼している場合、このユーザーはスプレッドシート プロセッサーに表示されるセキュリティに関するすべてのプロンプトを受け入れて、自分のシステムでペイロードを実行できる (この例では Windows の電卓を開くことができる) 可能性があります。

例 1: 次の例は、サニタイズされていないユーザー制御データを含む CSV レスポンスを生成する Spring コントローラーを示しています。


@RequestMapping(value = "/api/service.csv")
public ResponseEntity<String> service(@RequestParam("name") String name) {

HttpHeaders responseHeaders = new HttpHeaders();
responseHeaders.add("Content-Type", "application/csv; charset=utf-8");
responseHeaders.add("Content-Disposition", "attachment;filename=file.csv");

String data = generateCSVFor(name);

return new ResponseEntity<>(data, responseHeaders, HttpStatus.OK);
}
References
[1] Formula Injection Pentest Magazine
[2] Comma Separated Vulnerabilities Context
[3] Standards Mapping - Common Weakness Enumeration CWE ID 1236
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 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 SI-10 Information Input Validation (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[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
[11] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[12] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[13] Standards Mapping - OWASP Top 10 2010 A1 Injection
[14] Standards Mapping - OWASP Top 10 2013 A1 Injection
[15] Standards Mapping - OWASP Top 10 2017 A1 Injection
[16] Standards Mapping - OWASP Top 10 2021 A03 Injection
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[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 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, 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
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3600 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3600 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3600 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3600 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3600 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3600 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3600 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.java.formula_injection
Abstract
攻撃者はスプレッドシートに書き込まれたデータを制御できる可能性があるため、特定のスプレッドシート プロセッサーでファイルを開くユーザーを対象にすることが可能となります。
Explanation
Apache OpenOffice Calc や Microsoft Office Excel などの一般的なスプレッドシート プロセッサーは、強力な式演算をサポートしているため、スプレッドシートを制御している攻撃者は、基盤となるシステムで任意のコマンドを実行したり、スプレッドシートの機密情報を漏洩させたりできる可能性があります。

たとえば、攻撃者は CSV フィールドの一部として次のペイロードを挿入することができます。=cmd|'/C calc.exe'!Z0。スプレッドシートを開くユーザーがドキュメントの生成元を信頼している場合、このユーザーはスプレッドシート プロセッサーに表示されるセキュリティに関するすべてのプロンプトを受け入れて、自分のシステムでペイロードを実行できる (この例では Windows の電卓を開くことができる) 可能性があります。

例 1: 次の例は、サニタイズされていないユーザー制御データを含む CSV レスポンスを生成する Spring コントローラーを示しています。


@RequestMapping(value = "/api/service.csv")
fun service(@RequestParam("name") name: String): ResponseEntity<String> {
val responseHeaders = HttpHeaders()
responseHeaders.add("Content-Type", "application/csv; charset=utf-8")
responseHeaders.add("Content-Disposition", "attachment;filename=file.csv")
val data: String = generateCSVFor(name)
return ResponseEntity(data, responseHeaders, HttpStatus.OK)
}
References
[1] Formula Injection Pentest Magazine
[2] Comma Separated Vulnerabilities Context
[3] Standards Mapping - Common Weakness Enumeration CWE ID 1236
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 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 SI-10 Information Input Validation (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[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
[11] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[12] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[13] Standards Mapping - OWASP Top 10 2010 A1 Injection
[14] Standards Mapping - OWASP Top 10 2013 A1 Injection
[15] Standards Mapping - OWASP Top 10 2017 A1 Injection
[16] Standards Mapping - OWASP Top 10 2021 A03 Injection
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[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 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, 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
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3600 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3600 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3600 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3600 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3600 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3600 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3600 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.dataflow.kotlin.formula_injection
Abstract
PreferenceActivity を拡張する Android アクティビティが、インスタンス化可能なフラグメント クラスの制限に失敗しています。
Explanation
悪意のあるアプリケーションは、安全ではない PreferenceActivity を呼び出し、任意のクラスをロードさせるために :android:show_fragment インテント エキストラを供給することができます。 悪意のあるアプリケーションは、通常はエクスポートされていないアクティビティ内でロードされる、脆弱なアプリケーションの任意の FragmentPreferenceActivity にロードさせ、攻撃者に渡すことができます。

例 1: 次のコードは、予期されたフラグメントのみがロードされることを確認するためのチェックの実装に失敗しています。


@Override
public static boolean isFragmentValid(Fragment paramFragment)
{
return true;
}
References
[1] Roee Hay A New Vulnerability in the Android Framework: Fragment Injection
[2] Standards Mapping - Common Weakness Enumeration CWE ID 470
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754
[4] Standards Mapping - FIPS200 SI
[5] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation
[8] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[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
[11] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[12] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[13] Standards Mapping - OWASP Top 10 2010 A1 Injection
[14] Standards Mapping - OWASP Top 10 2013 A1 Injection
[15] Standards Mapping - OWASP Top 10 2017 A1 Injection
[16] Standards Mapping - OWASP Top 10 2021 A03 Injection
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.4
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[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 6.2.4
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective 5.4 - Authentication and Access Control, 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
[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I
[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I
[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[51] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)
desc.structural.java.fragment_injection