Vulnerability Description
Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Passport-Saml Project | Passport-Saml | < 3.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/node-saml/passport-saml/pull/595PatchThird Party Advisory
- https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42Third Party Advisory
- https://github.com/node-saml/passport-saml/pull/595PatchThird Party Advisory
- https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42Third Party Advisory
FAQ
What is CVE-2021-39171?
CVE-2021-39171 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant s...
How severe is CVE-2021-39171?
CVE-2021-39171 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39171?
Check the references section above for vendor advisories and patch information. Affected products include: Passport-Saml Project Passport-Saml.