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php-crypto-audit

php-crypto-audit

github.com/0xsheSecurity40975 installsUpdated 31w ago
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About php-crypto-audit

An Agent skill for auditing PHP cryptography and key handling. It checks weak hashes, unsafe encryption, signature-validation flaws, and hardcoded keys, traces key sources, evaluates verification, and reports remediation with a validation framework or observable evidence.

Key features

  1. 01Review password hashing and encryption
  2. 02Audit signature and JWT verification
  3. 03Trace key sources and assess comparisons
  4. 04Recommend fixes and migration steps
  5. 05Provide validation frameworks or observable evidence

Use cases

  1. 01Check password-hash algorithms and parameters
  2. 02Audit encryption modes and IV configuration
  3. 03Review JWT or HMAC verification logic
  4. 04Find hardcoded keys and sensitive-data exposure

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/0xshe/php-code-audit-skill --skill php-crypto-audit

After installing, type/php-crypto-auditin Claude Code to confirm it loaded.

Details

From the project README

PHP 加密与密钥安全审计(php-crypto-audit)

分析 PHP 项目源码中密码/令牌/敏感数据的加密与哈希实现,检测:

  • 弱哈希(MD5/SHA1/无 salt)
  • 不安全的对称/非对称加密使用(ECB、固定 IV、错误模式)
  • 签名校验缺陷(JWT 未验证、HMAC 用错、算法选择可控)
  • 硬编码密钥/明文 key 泄露

分级与编号

  • 详见:shared/SEVERITY_RATING.md
  • 漏洞编号:{C/H/M/L}-CRYPTO-{序号}

必检 Sink(强制)

必须搜索并分析以下实现点(按项目实际替换):

  • 密码哈希:md5/sha1/hash(非 password_hash)、crypt 参数误用
  • 安全哈希:password_hash/password_verify(检查是否参数正确)
  • 对称加密:openssl_encrypt/decrypt(检查 mode/iv)
  • 签名:hash_hmac、openssl_sign、JWT verify/签名比较实现

必检要求(强制)

  • 必须定位“密钥来源”:硬编码/环境变量/配置文件/请求参数
  • 必须判断“校验是否可靠”:是否存在算法可控或比较时序泄露
  • 必须输出修复建议与迁移方案(例如升级哈希算法、强制使用参数化模式)

PoC(强制框架)

由于加密类漏洞可能依赖环境,PoC 至少要给出:

  • 可执行的“验证框架”(例如构造 JWT payload 并解释应当发生的验证失败/绕过)
  • 或给出可观测的证据(例如日志泄露、错误模式产生可逆结果)

报告输出

{output_path}/vuln_audit/crypto_{timestamp}.md

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