GitHub Enterprise Server up to 3.9.14/3.10.11/3.11.9/3.12.3 SAML Single Sign-on incorrect implementation of authentication algorithm

Summaryinfo

A vulnerability, which was classified as problematic, was found in GitHub Enterprise Server up to 3.9.14/3.10.11/3.11.9/3.12.3. The impacted element is an unknown function of the component SAML Single Sign-on. Such manipulation leads to incorrect implementation of authentication algorithm. This vulnerability is documented as CVE-2024-4985. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in GitHub Enterprise Server up to 3.9.14/3.10.11/3.11.9/3.12.3 and classified as problematic. Affected by this issue is some unknown functionality of the component SAML Single Sign-on. The manipulation with an unknown input leads to a incorrect implementation of authentication algorithm vulnerability. Using CWE to declare the problem leads to CWE-303. The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at docs.github.com. This vulnerability is handled as CVE-2024-4985 since 05/16/2024. The exploitation is known to be difficult. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 3.9.15, 3.10.12, 3.11.10, 3.12.4 or 3.13.0 eliminates this vulnerability. The upgrade is hosted for download at docs.github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Bug Tracking Software

Vendor

• GitHub

Name

• Enterprise Server

Version

• 3.9.0
• 3.9.1
• 3.9.2
• 3.9.3
• 3.9.4
• 3.9.5
• 3.9.6
• 3.9.7
• 3.9.8
• 3.9.9
• 3.9.10
• 3.9.11
• 3.9.12
• 3.9.13
• 3.9.14
• 3.10.0
• 3.10.1
• 3.10.2
• 3.10.3
• 3.10.4
• 3.10.5
• 3.10.6
• 3.10.7
• 3.10.8
• 3.10.9
• 3.10.10
• 3.10.11
• 3.11.0
• 3.11.1
• 3.11.2
• 3.11.3
• 3.11.4
• 3.11.5
• 3.11.6
• 3.11.7
• 3.11.8
• 3.11.9
• 3.12.0
• 3.12.1
• 3.12.2
• 3.12.3

License

• open-source

CPE 2.3info

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CPE 2.2info

• 🔍
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