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。
Insecure Transport: Insufficient Diffie Hellman Strength
Abstract
サイズが 2048 ビット未満の素数を持つ Diffie-Hellman グループを使用すると、アプリケーションは中間者攻撃 (MitM) に対して脆弱になります。
Explanation
Diffie-Hellman 鍵交換アルゴリズムは、通信チャネルを保護するための秘密鍵を計算するためのベースとして固定の素数を使用します。使用する素数のサイズによって生成される鍵のセキュリティ レベルが決まり、Diffie-Hellman 鍵交換アルゴリズムが提供する有効なセキュリティが定義されます。
例1: 次の Node.js アプリケーションは、定義済みの
この鍵交換実装で保護された通信チャネルは、中間者攻撃に対して脆弱です。この脆弱性は、Elliptical-Curve Diffie-Hellman (ECDHE) 鍵交換を除くすべての匿名、一時的、固定 Diffie-Hellman 鍵交換アルゴリズムに影響します。
例1: 次の Node.js アプリケーションは、定義済みの
modp2 グループを使用して、1024 ビットの素数を使用する Diffie-Hellman 鍵交換プロトコルを初期化します。
const dh = getDiffieHellman('modp2');
dh.generateKeys();
...
この鍵交換実装で保護された通信チャネルは、中間者攻撃に対して脆弱です。この脆弱性は、Elliptical-Curve Diffie-Hellman (ECDHE) 鍵交換を除くすべての匿名、一時的、固定 Diffie-Hellman 鍵交換アルゴリズムに影響します。
References
[1] Imperfect forward secrecy: How Diffie-Hellman fails in practice Adrian David, et al.
[2] Transitioning the Use of Cryptographic Algorithms and Key Lengths NIST
[3] Standards Mapping - Common Weakness Enumeration CWE ID 327
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000068, CCI-001453, CCI-002418, CCI-002420, CCI-002421, CCI-002422, CCI-002450, CCI-002890, CCI-003123
[5] Standards Mapping - FIPS200 CM, SC
[6] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-17 Remote Access (P1), MA-4 Nonlocal Maintenance (P2), SC-8 Transmission Confidentiality and Integrity (P1), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-17 Remote Access, MA-4 Nonlocal Maintenance, SC-8 Transmission Confidentiality and Integrity, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[9] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.9.3 Cryptographic Software and Devices Verifier Requirements (L2 L3), 6.2.2 Algorithms (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 8.3.7 Sensitive Private Data (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection
[12] Standards Mapping - OWASP Mobile 2024 M5 Insecure Communication
[13] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[14] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications
[15] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection
[16] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[17] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4
[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography
[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications
[30] Standards Mapping - SANS Top 25 2010 Porous Defenses - CWE ID 327
[31] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 327
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000160 CAT II, APSC-DV-000170 CAT II, APSC-DV-001940 CAT II, APSC-DV-001950 CAT II, APSC-DV-002010 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II
[54] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)
[55] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.structural.javascript.insecure_transport_insufficient_diffie_hellman_strength