Improper Authentication Affecting github.com/rancher/rancher/pkg/auth/providers/saml package, versions >=2.8.0 <2.8.13>=2.9.0 <2.9.7>=2.10.0 <2.10.3
Threat Intelligence
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 EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Improper Authentication vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMRANCHERRANCHERPKGAUTHPROVIDERSSAML-8883807
- published28 Feb 2025
- disclosed27 Feb 2025
- creditUnknown
Introduced: 27 Feb 2025
CVE-2025-23389 Â (opens in a new tab)How to fix?
Upgrade github.com/rancher/rancher/pkg/auth/providers/saml to version 2.8.13, 2.9.7, 2.10.3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Authentication due to improper validation of SAML assertion requests. An attacker can impersonate any user by manipulating cookie values during their initial login.
Note:
This is only exploitable if a SAML authentication provider is configured and the user is logging in for the first time or if a user has been removed from the authentication provider.
Workaround
This vulnerability can be mitigated by temporarily disabling the SAML-based AP.