界: Security Features
ソフトウェアのセキュリティは、セキュリティ ソフトウェアではありません。ここでは、認証、アクセス制御、機密性、暗号化、権限管理などのトピックについて説明します。
Password Management: Weak Cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはプロパティ ファイルからパスワードを読み取り、そのパスワードを使用して URL リクエストのデフォルトの認証情報を設定しています。
このコードは正常に動作しますが、
例 1: 次のコードはプロパティ ファイルからパスワードを読み取り、そのパスワードを使用して URL リクエストのデフォルトの認証情報を設定しています。
...
var fs:FileStream = new FileStream();
fs.open(new File("config.properties"), FileMode.READ);
var decoder:Base64Decoder = new Base64Decoder();
decoder.decode(fs.readMultiByte(fs.bytesAvailable, File.systemCharset));
var password:String = decoder.toByteArray().toString();
URLRequestDefaults.setLoginCredentialsForHost(hostname, usr, password);
...
このコードは正常に動作しますが、
config.properties
にアクセスできる全員が password
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.actionscript.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
アプリケーションの設定ファイルなどのデータストアにパスワードが平文で保管されるている場合、Password Management の問題が発生します。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはレジストリからパスワードを読み込み、そのパスワードを使用して新しいネットワーク認証情報を作成しています。
このコードは正常に動作しますが、パスワードを保管するために使用されているレジストリ キーにアクセスできる全員が
例 1: 次のコードはレジストリからパスワードを読み込み、そのパスワードを使用して新しいネットワーク認証情報を作成しています。
...
string value = regKey.GetValue(passKey).ToString());
byte[] decVal = Convert.FromBase64String(value);
NetworkCredential netCred =
new NetworkCredential(username,decVal.toString(),domain);
...
このコードは正常に動作しますが、パスワードを保管するために使用されているレジストリ キーにアクセスできる全員が
password
の値を読み取れます。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Scott Mitchell Protecting Connection Strings and Other Configuration Information Microsoft
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.dotnet.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
アプリケーションの設定ファイルなどのデータストアにパスワードが平文で保管されるている場合、Password Management の問題が発生します。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードでは、レジストリからパスワードを読み取り、単純なエンコーディング アルゴリズムを使用してデコードし、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、パスワードの保存に使用されるレジストリ キーにアクセスできる全員が
例 1: 次のコードでは、レジストリからパスワードを読み取り、単純なエンコーディング アルゴリズムを使用してデコードし、そのパスワードを使用してデータベースに接続しています。
...
RegQueryValueEx(hkey, TEXT(.SQLPWD.), NULL,
NULL, (LPBYTE)password64, &size64);
Base64Decode(password64, size64, (BYTE*)password, &size);
rc = SQLConnect(*hdbc, server, SQL_NTS, uid,
SQL_NTS, password, SQL_NTS);
...
このコードは正常に動作しますが、パスワードの保存に使用されるレジストリ キーにアクセスできる全員が
password64
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がパスワード情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Windows Data Protection Microsoft
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.cpp.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
...
01 RECORDX.
05 UID PIC X(10).
05 PASSWORD PIC X(10).
05 LEN PIC S9(4) COMP.
...
EXEC CICS
READ
FILE('CFG')
INTO(RECORDX)
RIDFLD(ACCTNO)
...
END-EXEC.
CALL "g_base64_decode_inplace" using
BY REFERENCE PASSWORD
BY REFERENCE LEN
ON EXCEPTION
DISPLAY "Requires GLib library" END-DISPLAY
END-CALL.
EXEC SQL
CONNECT :UID
IDENTIFIED BY :PASSWORD
END-EXEC.
...
このコードは正常に動作しますが、
CFG
にアクセスできる全員がパスワードの値を読み取ることができ、値が base64 でエンコードされていることが分かります。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.cobol.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードでは、JSON ファイルからパスワードを読み取り、そのパスワードを使用してリクエストの認証ヘッダーを設定します。
このコードは正常に動作しますが、
例 1: 次のコードでは、JSON ファイルからパスワードを読み取り、そのパスワードを使用してリクエストの認証ヘッダーを設定します。
...
file, _ := os.Open("config.json")
decoder := json.NewDecoder(file)
decoder.Decode(&values)
password := base64.StdEncoding.DecodeString(values.Password)
request.SetBasicAuth(values.Username, password)
...
このコードは正常に動作しますが、
config.json
にアクセスできる全員が password
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がパスワード情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.golang.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、
モバイル環境では、デバイスをなくす機会が高いことを考慮すると、パスワード管理は特に重要です。
例 2: 次のコードでは、Android WebView store からユーザー名とパスワードを読み取り、それらを使用して保護されたページを表示するための Authentication を設定します。
WebView 認証情報はデフォルトで平文として保存されハッシュされません。このためユーザーのデバイスがルート化されている (またはエミュレータを使用している) 場合、そのユーザーは保存されている特定サイトのパスワードを読み取ることができます。
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
...
Properties prop = new Properties();
prop.load(new FileInputStream("config.properties"));
String password = Base64.decode(prop.getProperty("password"));
DriverManager.getConnection(url, usr, password);
...
このコードは正常に動作しますが、
config.properties
にアクセスできる全員が password
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。モバイル環境では、デバイスをなくす機会が高いことを考慮すると、パスワード管理は特に重要です。
例 2: 次のコードでは、Android WebView store からユーザー名とパスワードを読み取り、それらを使用して保護されたページを表示するための Authentication を設定します。
...
webview.setWebViewClient(new WebViewClient() {
public void onReceivedHttpAuthRequest(WebView view,
HttpAuthHandler handler, String host, String realm) {
String[] credentials = view.getHttpAuthUsernamePassword(host, realm);
String username = new String(Base64.decode(credentials[0], DEFAULT));
String password = new String(Base64.decode(credentials[1], DEFAULT));
handler.proceed(username, password);
}
});
...
WebView 認証情報はデフォルトで平文として保存されハッシュされません。このためユーザーのデバイスがルート化されている (またはエミュレータを使用している) 場合、そのユーザーは保存されている特定サイトのパスワードを読み取ることができます。
References
[1] SQLCipher.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.java.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードは、ハードコーディングされたパスワードを使用してアプリケーションに接続し、アドレス帳のエントリを取得しています。
このコードは正常に実行されますが、含まれる Web ページにアクセスする全員がパスワードを閲覧できます。
例 1: 次のコードは、ハードコーディングされたパスワードを使用してアプリケーションに接続し、アドレス帳のエントリを取得しています。
...
obj = new XMLHttpRequest();
obj.open('GET','/fetchusers.jsp?id='+form.id.value,'true','scott','tiger');
...
このコードは正常に実行されますが、含まれる Web ページにアクセスする全員がパスワードを閲覧できます。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.javascript.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。 プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードは、
このコードは正常に動作しますが、
モバイル環境では、デバイスをなくす機会が高いことを考慮すると、パスワード管理は特に重要です。
例 1: 次のコードは、
plist
ファイルからパスワードを読み取り、読み取ったパスワードを使用してパスワードで保護されたファイルを解凍します。
...
NSDictionary *dict= [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Config" ofType:@"plist"]];
NSString *encoded_password = [dict valueForKey:@"encoded_password"];
NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:encoded_password options:0];
NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];
[SSZipArchive unzipFileAtPath:zipPath toDestination:destPath overwrite:TRUE password:decodedString error:&error];
...
このコードは正常に動作しますが、
Config.plist
ファイルにアクセスできる全員が encoded_password
の値を読むことができ、値が base64 でエンコードされていることが分かります。モバイル環境では、デバイスをなくす機会が高いことを考慮すると、パスワード管理は特に重要です。
References
[1] SQLCipher.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.objc.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
...
$props = file('config.properties', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$password = base64_decode($props[0]);
$link = mysql_connect($url, $usr, $password);
if (!$link) {
die('Could not connect: ' . mysql_error());
}
...
このコードは正常に動作しますが、
config.properties
にアクセスできる全員が password
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.php.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
...
props = os.open('config.properties')
password = base64.b64decode(props[0])
link = MySQLdb.connect (host = "localhost",
user = "testuser",
passwd = password,
db = "test")
...
このコードは正常に動作しますが、
config.properties
にアクセスできる全員が password
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.python.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
アプリケーションの設定ファイルなどのデータストアにパスワードが平文で保管されるている場合、Password Management の問題が発生します。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードでは、環境変数からパスワードを読み取り、単純なエンコーディング アルゴリズムを使用してデコードし、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、パスワードを保管するために使用されている環境変数にアクセスできる全員が
例 1: 次のコードでは、環境変数からパスワードを読み取り、単純なエンコーディング アルゴリズムを使用してデコードし、そのパスワードを使用してデータベースに接続しています。
require 'pg'
require 'base64'
...
passwd = Base64.decode64(ENV['PASSWD64'])
...
conn = PG::Connection.new(:dbname => "myApp_production", :user => username, :password => passwd, :sslmode => 'require')
このコードは正常に動作しますが、パスワードを保管するために使用されている環境変数にアクセスできる全員が
PASSWD64
の値を読み取り、その値が base64 でエンコードされていることを容易に判断できます。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.ruby.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
...
val prop = new Properties();
prop.load(new FileInputStream("config.properties"));
val password = Base64.decode(prop.getProperty("password"));
DriverManager.getConnection(url, usr, password);
...
このコードは正常に動作しますが、
config.properties
にアクセスできる全員がpassword
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がパスワード情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.scala.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。 プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードは、
このコードは正常に動作しますが、
モバイル環境では、デバイスをなくす機会が高いことを考慮すると、パスワード管理は特に重要です。
例 1: 次のコードは、
plist
ファイルからパスワードを読み取り、読み取ったパスワードを使用してパスワードで保護されたファイルを解凍します。
...
var myDict: NSDictionary?
if let path = NSBundle.mainBundle().pathForResource("Config", ofType: "plist") {
myDict = NSDictionary(contentsOfFile: path)
}
if let dict = myDict {
let password = base64decode(dict["encoded_password"])
zipArchive.unzipOpenFile(zipPath, password:password])
}
...
このコードは正常に動作しますが、
Config.plist
ファイルにアクセスできる全員が encoded_password
の値を読むことができ、値が base64 でエンコードされていることが分かります。モバイル環境では、デバイスをなくす機会が高いことを考慮すると、パスワード管理は特に重要です。
References
[1] SQLCipher.
[2] Standards Mapping - Common Weakness Enumeration CWE ID 261
[3] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[8] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[9] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[10] Standards Mapping - FIPS200 IA
[11] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[12] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[13] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[14] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[15] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[16] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[18] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[19] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[21] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[23] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[36] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.swift.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次の Linux シャドウ ファイルには、脆弱な暗号化アルゴリズム DES を使用するパスワードが含まれています。
DES アルゴリズムの脆弱さは証明済みであり、数日のうちにブルートフォース攻撃を受ける可能性があります。
例 1: 次の Linux シャドウ ファイルには、脆弱な暗号化アルゴリズム DES を使用するパスワードが含まれています。
...
root:qFio7llfVKk.s:19033:0:99999:7:::
...
DES アルゴリズムの脆弱さは証明済みであり、数日のうちにブルートフォース攻撃を受ける可能性があります。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.regex.universal.password_management_weak_cryptography
Abstract
単純なエンコーディングを使用してパスワードを不明瞭化してもパスワードは保護されません。
Explanation
Password Management の問題が発生するのは、アプリケーションのプロパティや設定ファイルにパスワードが平文で保管される場合です。プログラマーが base64 エンコーディングなどのエンコーディング機能でパスワードを不明瞭化することによって Password Management の問題に対処しようとすることがありますが、それではパスワードは適切に保護されません。
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
このコードは正常に動作しますが、
例 1: 次のコードはプロパティファイルからパスワードを読み取り、そのパスワードを使用してデータベースに接続しています。
...
...
Private Declare Function GetPrivateProfileString _
Lib "kernel32" Alias "GetPrivateProfileStringA" _
(ByVal lpApplicationName As String, _
ByVal lpKeyName As Any, ByVal lpDefault As String, _
ByVal lpReturnedString As String, ByVal nSize As Long, _
ByVal lpFileName As String) As Long
...
Dim password As String
...
password = StrConv(DecodeBase64(GetPrivateProfileString("MyApp", "Password", _
"", value, Len(value), _
App.Path & "\" & "Config.ini")), vbUnicode)
...
con.ConnectionString = "Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=scott;Passwd=" & password &";"
...
このコードは正常に動作しますが、
Config.ini
にアクセスできる全員が Password
の値を読むことができ、値が base64 でエンコードされていることが分かります。不心得な従業員がこの情報へのアクセス権を持っている場合、システムに侵入するために使用されることがあります。References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 261
[2] Standards Mapping - Common Weakness Enumeration Top 25 2019 [13] CWE ID 287
[3] Standards Mapping - Common Weakness Enumeration Top 25 2020 [14] CWE ID 287
[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [14] CWE ID 287
[5] Standards Mapping - Common Weakness Enumeration Top 25 2022 [14] CWE ID 287
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [13] CWE ID 287
[7] Standards Mapping - Common Weakness Enumeration Top 25 2024 [14] CWE ID 287
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000196, CCI-001199
[9] Standards Mapping - FIPS200 IA
[10] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 IA-5 Authenticator Management (P1), SC-28 Protection of Information at Rest (P1)
[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 IA-5 Authenticator Management, SC-28 Protection of Information at Rest
[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.10.1 Service Authentication Requirements (L2 L3), 2.10.2 Service Authentication Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3)
[14] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[15] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[16] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[17] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[18] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[19] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[20] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[21] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[22] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8, Requirement 8.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8, Requirement 8.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1, Requirement 6.5.3, Requirement 8.2.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4, Requirement 6.5.3, Requirement 6.5.6
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7 - Use of Cryptography
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7 - Use of Cryptography
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7 - Use of Cryptography
[35] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001740 CAT I, APSC-DV-002330 CAT II
[57] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[58] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.dataflow.vb.password_management_weak_cryptography