CVE-2024-4985
An authentication bypass vulnerability was present in the GitHub Enterprise Server (GHES) when utilizing SAML single sign-on authentication with the optional encrypted assertions feature.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An authentication bypass vulnerability was present in the GitHub Enterprise Server (GHES) when utilizing SAML single sign-on authentication with the optional encrypted assertions feature. This vulnerability allowed an attacker to forge a SAML response to provision and/or gain access to a user with site administrator privileges. Exploitation of this vulnerability would allow unauthorized access to the instance without requiring prior authentication. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.13.0 and was fixed in versions 3.9.15, 3.10.12, 3.11.10 and 3.12.4. This vulnerability was reported via the GitHub Bug Bounty program.
- CVSS 4.0
- 10.0 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 2.57% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-303
- Affected
- github/enterprise server
- Source
- product-cna@github.com
References
- https://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.12Release Notes
- https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.10Release Notes
- https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.4Release Notes
- https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.15Release Notes
- https://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.12Release Notes
- https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.10Release Notes
- https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.4Release Notes
- https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.15Release Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.