mcp-server-semgrep/semgrep-rules/go/aws-lambda/security/tainted-sql-string.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: tainted-sql-string
  languages: [go]
  severity: ERROR
  message: >-
    Detected user input used to manually construct a SQL string. This is usually
    bad practice because manual construction could accidentally result in a SQL
    injection. An attacker could use a SQL injection to steal or modify contents
    of the database. Instead, use a parameterized query which is available
    by default in most database engines. Alternatively, consider using an
    object-relational mapper (ORM) such as Sequelize which will protect your queries.
  metadata:
    references:
    - https://owasp.org/www-community/attacks/SQL_Injection
    category: security
    owasp:
    - A01:2017 - Injection
    - A03:2021 - Injection
    cwe:
    - "CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')"
    technology:
    - aws-lambda
    cwe2022-top25: true
    cwe2021-top25: true
    subcategory:
    - vuln
    likelihood: HIGH
    impact: MEDIUM
    confidence: MEDIUM
  mode: taint
  pattern-sources:
  - patterns:
    - pattern-either:
      - pattern-inside: |
          func $HANDLER($CTX $CTXTYPE, $EVENT $TYPE, ...) {...}
          ...
          lambda.Start($HANDLER, ...)
      - patterns:
        - pattern-inside: |
            func $HANDLER($EVENT $TYPE) {...}
            ...
            lambda.Start($HANDLER, ...)
        - pattern-not-inside: |
            func $HANDLER($EVENT context.Context) {...}
            ...
            lambda.Start($HANDLER, ...)
    - focus-metavariable: $EVENT
  pattern-sinks:
  - patterns:
    - pattern-either:
      - patterns:
        - pattern: |
            "$SQLSTR" + ...
        - metavariable-regex:
            metavariable: $SQLSTR
            regex: (?i)(\s*select|\s*delete|\s*insert|\s*create|\s*update|\s*alter|\s*drop).*
      - patterns:
        - pattern-either:
          - pattern: fmt.Fprintf($F, "$SQLSTR", ...)
          - pattern: fmt.Sprintf("$SQLSTR", ...)
          - pattern: fmt.Printf("$SQLSTR", ...)
        - metavariable-regex:
            metavariable: $SQLSTR
            regex: \s*(?i)(select|delete|insert|create|update|alter|drop)\b.*%(v|s|q).*
    - pattern-not-inside: |
        log.$PRINT(...)
  pattern-sanitizers:
  - pattern: strconv.Atoi(...)