Question 1

How does recheck compare to other ReDoS tools like regexploit?

Accepted Answer

recheck emphasizes trustworthy analysis with minimized false positives, using proven algorithms for accuracy, while tools like regexploit might offer broader regex engine support or different detection methods. It's best for Scala and JavaScript ecosystems where integration via Maven or npm is needed.

Question 2

How to integrate recheck into a CI/CD pipeline for automated checks?

Accepted Answer

You can add recheck as a step in your CI configuration, such as GitHub Actions, by running the npm or Maven commands to scan regex patterns in your codebase. The README's CI badge indicates it's tested in workflows, making setup straightforward for supported languages.

Question 3

Can recheck detect vulnerabilities in Node.js applications?

Accepted Answer

Yes, recheck has an npm package that works with JavaScript and TypeScript, including Node.js projects, to analyze regex for ReDoS vulnerabilities. It uses the same reliable algorithms as the Scala version, ensuring consistent security checks.

Question 4

What are common false positives in recheck analysis?

Accepted Answer

recheck aims to minimize false positives through proven algorithms, but it might flag complex regex with ambiguous patterns that aren't actually vulnerable in specific contexts. Always review reports in conjunction with your application's usage to confirm findings.

Question 5

Is recheck suitable for checking regex in legacy codebases?

Accepted Answer

Yes, recheck can be applied to legacy code by integrating it into the build process, but it may require updates for older regex syntax or engines. Its static analysis approach helps identify vulnerabilities without modifying running code.

Question 6

Does recheck work with regex in front-end JavaScript frameworks like React?

Accepted Answer

Yes, the npm package supports JavaScript and TypeScript, so it can analyze regex used in front-end code, including frameworks like React or Vue. However, ensure the regex patterns are accessible during the build or test phase for scanning.

recheck

What is recheck?

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