CVE-2024-45409
The Ruby SAML library vulnerable to a SAML authentication bypass via Incorrect XPath selector
- State
- Published
- Severity
- 10.0 Critical
- Published
- Sep 10, 2024
- Updated
- Nov 11, 2024
- Reserved
- Aug 28, 2024
Description
The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/Assertion with arbitrary contents. This would allow the attacker to log in as arbitrary user within the vulnerable system. This vulnerability is fixed in 1.17.0 and 1.12.3.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-347 Improper Verification of Cryptographic Signature
Affected Products
| Product | Versions |
|---|---|
ruby-samlSAML-Toolkits |
|
References
- https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2
- https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-cvp8-5r8g-fhvq
- https://github.com/SAML-Toolkits/ruby-saml/commit/1ec5392bc506fe43a02dbb66b68741051c5ffeae
- https://github.com/SAML-Toolkits/ruby-saml/commit/4865d030cae9705ee5cdb12415c654c634093ae7
- https://ssoready.com/blog/engineering/ruby-saml-pwned-by-xml-signature-wrapping-attacks/
- https://news.ycombinator.com/item?id=41586031
- https://security.netapp.com/advisory/ntap-20240926-0008/
- https://lists.debian.org/debian-lts-announce/2024/11/msg00006.html
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