GitHub Advisoryadvisory · npm
GHSA-m974-647v-whv7 Signature bypass via multiple root elements
HIGH
Official page ↗
- Aliases
- CVE-2022-39299
- Ecosystem
- npm
- Packages
- passport-saml, node-saml, @node-saml/node-saml, @node-saml/passport-saml
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-347
- Reviewed
- 2022-10-12
Affected packages
• npm passport-saml: < 3.2.2 → fixed in 3.2.2
• npm node-saml: < 4.0.0-beta.5 → fixed in 4.0.0-beta.5
• npm @node-saml/node-saml: < 4.0.0-beta.5 → fixed in 4.0.0-beta.5
• npm @node-saml/passport-saml: < 4.0.0-beta.3 → fixed in 4.0.0-beta.3
Description
Impact
A remote attacker may be able to bypass SAML authentication on a website using passport-saml. A successful attack requires that the attacker is in possession of an arbitrary IDP signed XML element. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered.
Patches
Users should upgrade to passport-saml 3.2.2 or newer. The issue was also present in the beta releases of `node-saml` before v4.0.0-beta.5.
Workarounds
Disable SAML authentication.
References
_Are there any links users can visit to find out more?_
For more information
If you have any questions or comments about this advisory:
• Open a discussion in the node-saml repo
Credits
• Felix Wilhelm of Google Project Zero
Related
Alias · CVE (1)
- CVE-2022-39299 Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. vulnerability
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://github.com/node-saml/passport-saml/security/advisories/GHSA-m974-647v-whv7 web
- https://nvd.nist.gov/vuln/detail/CVE-2022-39299 advisory
- https://github.com/node-saml/passport-saml/commit/8b7e3f5a91c8e5ac7e890a0c90bc7491ce33155e web
- https://github.com/node-saml/passport-saml package
- https://github.com/node-saml/passport-saml/releases/tag/v3.2.2 web
- http://packetstormsecurity.com/files/169826/Node-saml-Root-Element-Signature-Bypass.html web