variant-analysis

Variant analysis generalizes a known vulnerability pattern to hunt for similar bugs across a codebase. It applies iterative abstraction to identify code segments sharing the root cause of the initial security issue.

Variant analysis is a security auditing technique that identifies and generalizes vulnerability patterns across codebases. It takes an initial known issue and systematically searches for similar code patterns to uncover related bugs.

You can build and refine Semgrep and CodeQL queries by generalizing a specific vulnerability pattern. The process requires iterative abstraction of the root cause to develop effective code scanning rules.

Yes, understanding root cause analysis is required to perform variant analysis. The Skill relies on incremental pattern generalization starting from the root cause of an initial bug to systematically find similar vulnerabilities.

Yes, variant analysis supports hunting for variants of a SQL injection vulnerability by generalizing the improper input handling pattern. It systematically searches the codebase for other database queries where user input might be similarly mishandled.