GitHub Enterprise Server: SSO bypass via improper SAML assertion signature (3.14)
CVE-2024-9487 Published on October 10, 2024
An Improper Verification of Cryptographic Signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed when the encrypted assertions feature was enabled
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance. Exploitation required the encrypted assertions feature to be enabled, and the attacker would require direct network access as well as a signed SAML response or metadata document. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.15 and was fixed in versions 3.11.16, 3.12.10, 3.13.5, and 3.14.2. This vulnerability was reported via the GitHub Bug Bounty program.
Weakness Type
Improper Verification of Cryptographic Signature
The software does not verify, or incorrectly verifies, the cryptographic signature for data.
Products Associated with CVE-2024-9487
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Affected Versions
GitHub Enterprise Server:- Version 3.11.0, <= 3.11.15 is affected.
- Version 3.12.0, <= 3.12.9 is affected.
- Version 3.13.0, <= 3.13.4 is affected.
- Version 3.14.0, <= 3.14.1 is affected.
- Version 3.11.0, <= 3.11.15 is affected.
- Version 3.12.0, <= 3.12.9 is affected.
- Version 3.13.0, <= 3.13.4 is affected.
- Version 3.14.0, <= 3.14.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.