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mukul975 886658219f Add MITRE Fight Fraud Framework (F3 v1.1) mappings to fraud-relevant skills

- Add mitre_f3 frontmatter block to 94 fraud-relevant skills (phishing,
  account takeover, banking malware, BEC, identity/KYC, payment/card fraud,
  money-mule/cash-out, ransomware extortion, DFIR, threat intel)
- Map each skill to F3 v1.1 tactics + precise technique IDs, including the
  two F3-specific tactics ATT&CK lacks: Positioning (FA0001) and
  Monetization (FA0002)
- All 123 F3 v1.1 technique IDs validated against the upstream STIX bundle
  (github.com/center-for-threat-informed-defense/fight-fraud-framework):
  0 invalid IDs, 0 invalid tactics, 0 name mismatches, no placeholder IDs
- mitre_f3 kept as a separate block from mitre_attack (F3 redefines several
  ATT&CK tactics for the fraud context)
- Add docs/mitre-f3-mapping.md schema reference
- Update README: F3 as the 6th framework, dedicated F3 section + badge

2026-06-20 16:06:04 +02:00

3.7 KiB

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Performing Cryptographic Audit of Application

Overview

A cryptographic audit systematically reviews an application's use of cryptographic primitives, protocols, and key management to identify vulnerabilities such as weak algorithms, insecure modes, hardcoded keys, insufficient entropy, and protocol misconfigurations. This skill covers building an automated crypto audit tool that scans Python and configuration files for common cryptographic weaknesses.

When to Use

When conducting security assessments that involve performing cryptographic audit of application
When following incident response procedures for related security events
When performing scheduled security testing or auditing activities
When validating security controls through hands-on testing

Prerequisites

Familiarity with cryptography concepts and tools
Access to a test or lab environment for safe execution
Python 3.8+ with required dependencies installed
Appropriate authorization for any testing activities

Objectives

Detect usage of deprecated algorithms (MD5, SHA-1, DES, RC4)
Identify insecure cipher modes (ECB) and padding schemes
Find hardcoded keys, passwords, and secrets in source code
Verify TLS/SSL configuration strength
Check key derivation function parameters
Validate random number generator usage
Produce a structured audit report with findings and remediation

Key Concepts

Cryptographic Weakness Categories

Category	Examples	Risk Level
Weak Hashing	MD5, SHA-1 for integrity/signatures	High
Insecure Encryption	DES, 3DES, RC4, Blowfish	High
Bad Cipher Mode	ECB mode for any block cipher	High
Insufficient Key Size	RSA < 2048, AES-128 for long-term	Medium
Hardcoded Secrets	Keys/passwords in source code	Critical
Weak KDF	Low iteration PBKDF2, plain MD5	High
Poor Entropy	time-based seeds, predictable IVs	High
Deprecated Protocols	SSLv3, TLS 1.0, TLS 1.1	High

Security Considerations

Review both application code and configuration files
Check third-party dependencies for known crypto vulnerabilities
Verify certificates and TLS configurations on deployed servers
Ensure secrets are loaded from environment variables or vaults
Review key storage and rotation practices

Validation Criteria

Scanner detects all injected test weaknesses
MD5/SHA-1 usage for security purposes is flagged
ECB mode usage is flagged
Hardcoded keys/passwords are detected
Weak KDF parameters are identified
Report includes severity, location, and remediation
False positive rate is below 10%

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