Aalexbit-codemod

java-dynamic-code-execution-mining

Mine dynamic code evaluation sinks (ScriptEngine.eval, GroovyShell, SpEL) fed by dynamic input (javasecurity:S5334); read-only metrics for security review

miningmetricsjavasecurityvulnerabilitycode-executionevalinjectioncwe-95
Public
0 executions

Run locally

npx codemod java-dynamic-code-execution-mining

java-dynamic-code-execution-mining

Read-only mining codemod for SonarSource rule javasecurity:S5334Dynamic code execution should not be vulnerable to injection attacks.

It scans Java source and emits metrics only; it never modifies code (return null).
Findings are high-signal review candidates surfaced by AST pattern matching — they are
not proven vulnerabilities. A static mining pass cannot prove an end-to-end taint flow
from an untrusted source to the sink, so confirm data flow before remediating.

FieldValue
Rule keyjavasecurity:S5334
TypeVulnerability
SeverityBlocker
Primary CWECWE-95 (Improper Neutralization of Directives in Dynamically Evaluated Code)
Tagscwe

What it detects

Dynamic code evaluation sinks fed by dynamic data.

Sinks:

  • ScriptEngine.eval(...)
  • GroovyShell.evaluate / parse / run (groovy/shell/script receiver)

Emission rule: Only emits when an argument is dynamic.

Metric: java-dynamic-code-execution-mining

dimensionmeaning
ruleSonarSource rule key
cweprimary CWE identifier
severityalways blocker
sinkthe detected sink (method/constructor)
package_nameenclosing Java package
class_nameenclosing class/interface/enum/record
method_nameenclosing method/constructor (or <none>)
filefile path (relative to scan target)
line1-based line of the finding
arg_kindclassification of the relevant argument (literal, concatenation, variable, method_call, field, object_creation, expression, none)

Security standards

  • CWE-20 (Improper Input Validation)
  • CWE-95 (Improper Neutralization of Directives in Dynamically Evaluated Code)
  • CWE-917 (Improper Neutralization of Special Elements in Expression Language)
  • OWASP ASVS 4.0: 5.1.3, 5.1.4, 5.2.4, 5.5.4
  • OWASP Top 10 2021: A3
  • OWASP Top 10: A1
  • PCI DSS 3.2: 6.5.1
  • PCI DSS 4.0: 6.2.4
  • STIG ASD V5R3: V-222609

Run locally

bash

Part of the java-security-blocker-mining suite covering 19 blocker-severity
Java vulnerability rules. Each codemod is read-only and emits a single named metric.

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