mcp-server-semgrep/semgrep-rules/java/lang/security/audit/crypto/des-is-deprecated.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: des-is-deprecated
  message: >-
    DES is considered deprecated. AES is the recommended cipher.
    Upgrade to use AES.
    See https://www.nist.gov/news-events/news/2005/06/nist-withdraws-outdated-data-encryption-standard
    for more information.
  metadata:
    functional-categories:
      - 'crypto::search::symmetric-algorithm::javax.crypto'
    cwe:
    - 'CWE-326: Inadequate Encryption Strength'
    owasp:
    - A03:2017 - Sensitive Data Exposure
    - A02:2021 - Cryptographic Failures
    source-rule-url: https://find-sec-bugs.github.io/bugs.htm#DES_USAGE
    asvs:
      section: V6 Stored Cryptography Verification Requirements
      control_id: 6.2.5 Insecure Algorithm
      control_url: https://github.com/OWASP/ASVS/blob/master/4.0/en/0x14-V6-Cryptography.md#v62-algorithms
      version: '4'
    references:
    - https://www.nist.gov/news-events/news/2005/06/nist-withdraws-outdated-data-encryption-standard
    - https://cheatsheetseries.owasp.org/cheatsheets/Cryptographic_Storage_Cheat_Sheet.html#algorithms
    category: security
    technology:
    - java
    subcategory:
    - vuln
    likelihood: MEDIUM
    impact: MEDIUM
    confidence: HIGH
  severity: WARNING
  patterns:
  - pattern-either:
    - pattern-inside: $CIPHER.getInstance("=~/DES/.*/")
    - pattern-inside: $CIPHER.getInstance("DES")
  - pattern-either:
    - pattern: |
        "=~/DES/.*/"
    - pattern: |
        "DES"
  fix: |
    "AES/GCM/NoPadding"
  languages:
  - java
  - kt