CVE-2024-45409
CRITICAL severity · CVSS 10 · CWE-347
10CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)45%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/SAML-Toolkits/ruby-saml/commit/1ec5392bc506fe43a02dbb66b68741051c5ffeae ↗
Additional information
- NVD record
- https://github.com/SAML-Toolkits/ruby-saml/commit/1ec5392bc506fe43a02dbb66b68741051c5ffeaePatch
- https://github.com/SAML-Toolkits/ruby-saml/commit/4865d030cae9705ee5cdb12415c654c634093ae7Patch
- https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2Advisory
- https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-cvp8-5r8g-fhvqAdvisory
- https://lists.debian.org/debian-lts-announce/2024/11/msg00006.html
- https://news.ycombinator.com/item?id=41586031
- https://security.netapp.com/advisory/ntap-20240926-0008/
- https://ssoready.com/blog/engineering/ruby-saml-pwned-by-xml-signature-wrapping-attacks/