mcp-server-semgrep

Version:
MCP Server for Semgrep Integration - static code analysis with AI
40 lines (39 loc) • 1.24 kB
YAML
rules:
- id: servletresponse-writer-xss
  message: >-
    Cross-site scripting detected in HttpServletResponse writer with variable '$VAR'.
    User
    input was detected going directly from the HttpServletRequest into output. Ensure
    your
    data is properly encoded using org.owasp.encoder.Encode.forHtml: 'Encode.forHtml($VAR)'.
  metadata:
    cwe:
    - "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
    owasp:
    - A07:2017 - Cross-Site Scripting (XSS)
    - A03:2021 - Injection
    source-rule-url: https://find-sec-bugs.github.io/bugs.htm#XSS_SERVLET
    category: security
    technology:
    - java
    references:
    - https://owasp.org/Top10/A03_2021-Injection
    cwe2022-top25: true
    cwe2021-top25: true
    subcategory:
    - vuln
    likelihood: MEDIUM
    impact: MEDIUM
    confidence: MEDIUM
  severity: ERROR
  patterns:
  - pattern-inside: $TYPE $FUNC(..., HttpServletResponse $RESP, ...) { ... }
  - pattern-inside: $VAR = $REQ.getParameter(...); ...
  - pattern-either:
    - pattern: $RESP.getWriter(...).write(..., $VAR, ...);
    - pattern: |
        $WRITER = $RESP.getWriter(...);
        ...
        $WRITER.write(..., $VAR, ...);
  languages:
  - java