mcp-server-semgrep/semgrep-rules/java/lang/security/audit/xxe/documentbuilderfactory-external-parameter-entities-true.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: documentbuilderfactory-external-parameter-entities-true
  severity: ERROR
  metadata:
    cwe:
    - 'CWE-611: Improper Restriction of XML External Entity Reference'
    owasp:
    - A04:2017 - XML External Entities (XXE)
    - A05:2021 - Security Misconfiguration
    asvs:
      section: V5 Validation, Sanitization and Encoding
      control_id: 5.5.2 Insecue XML Deserialization
      control_url: https://github.com/OWASP/ASVS/blob/master/4.0/en/0x13-V5-Validation-Sanitization-Encoding.md#v55-deserialization-prevention
      version: '4'
    references:
    - https://semgrep.dev/blog/2022/xml-security-in-java
    - https://semgrep.dev/docs/cheat-sheets/java-xxe/
    - https://blog.sonarsource.com/secure-xml-processor
    category: security
    technology:
    - java
    - xml
    cwe2022-top25: true
    cwe2021-top25: true
    subcategory:
    - vuln
    likelihood: LOW
    impact: HIGH
    confidence: HIGH
  message: >-
    External entities are allowed for $DBFACTORY.
    This is vulnerable to XML external entity attacks. Disable this by setting the feature "http://xml.org/sax/features/external-parameter-entities"
    to false.
  pattern: $DBFACTORY.setFeature("http://xml.org/sax/features/external-parameter-entities", true);
  fix: $DBFACTORY.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
  languages:
  - java