界: Security Features
軟體安全性並非安全性軟體。我們關注驗證、Access Control、保密性、加密以及權限管理之類的主題。
Insecure Transport: Insufficient Diffie Hellman Strength
Abstract
使用質數小於 2048 位元的 Diffie-Hellman 群組會造成應用程式容易受到 Man-in-the-Middle (MitM) 攻擊。
Explanation
Diffie-Hellman 金鑰交換演算法使用固定質數作為計算金鑰的基數，藉此確保通訊通道的安全。所部署質數的大小決定了產生金鑰的安全層級，這也定義了 Diffie-Hellman 金鑰交換演算法提供的有效安全性。
範例 1：以下 Node.js 應用程式使用預先定義的
透過這種金鑰交換實作保護的通訊通道，很容易受到 Man-in-the-Middle 攻擊。此弱點會影響所有匿名、臨時和固定 Diffie-Hellman 金鑰交換演算法，但 Elliptical-Curve Diffie-Hellman (ECDHE) 金鑰交換除外。
範例 1：以下 Node.js 應用程式使用預先定義的
modp2 群組來初始化 Diffie-Hellman 金鑰交換通訊協定，其使用 1024 位元質數：
const dh = getDiffieHellman('modp2');
dh.generateKeys();
...
透過這種金鑰交換實作保護的通訊通道，很容易受到 Man-in-the-Middle 攻擊。此弱點會影響所有匿名、臨時和固定 Diffie-Hellman 金鑰交換演算法，但 Elliptical-Curve Diffie-Hellman (ECDHE) 金鑰交換除外。
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