Improper Verification of Cryptographic Signature Affectingruby-saml package, versions<1.12.4>=1.13.0, <1.18.0
Severity
RecommendedCVSS assessment made by Snyk's Security Team.Learn more
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSSdocumentation for more details.
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Test your applications- Snyk IDSNYK-RUBY-RUBYSAML-9402845
- published13 Mar 2025
- disclosed12 Mar 2025
- creditPeter Stöckli
Introduced: 12 Mar 2025
NewCVE-2025-25291 (opens in a new tab)How to fix?
Upgraderuby-saml to version 1.12.4, 1.18.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to differences in XML document DOCTYPE parsing between REXML and Nokogiri, implemented inxml_security.rb. An attacker can bypass authentication via Signature Wrapping attack.
References
CVSS Base Scores
Snyk
Recommended- Attack Vector (AV)
The attack can be performed over the network.
Network - Attack Complexity (AC)
The attack does not require special conditions.
Low - Attack Requirements (AT)
No special requirements for the attack.
None - Privileges Required (PR)
No privileges are required.
None - User Interaction (UI)
No user interaction is required.
None
- Confidentiality (VC)
No impact on confidentiality.
None - Integrity (VI)
Significant impact on integrity.
High - Availability (VA)
No impact on availability.
None
- Confidentiality (SC)
Significant impact on confidentiality.
High - Integrity (SI)
Significant impact on integrity.
High - Availability (SA)
No impact on availability.
None