Critical GitHub Enterprise Server Flaw Allows Authentication Bypass

GitHub has rolled out fixes to address a optimum severity flaw in the GitHub Enterprise Server (GHES) that could permit an attacker to bypass authentication protections.

Tracked as CVE-2024-4985 (CVSS score: 10.), the issue could permit unauthorized access to an instance with out demanding prior authentication.

“On situations that use SAML one indicator-on (SSO) authentication with the optional encrypted assertions aspect, an attacker could forge a SAML response to provision and/or get access to a consumer with administrator privileges,” the organization explained in an advisory.

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GHES is a self-hosted platform for software growth, enabling businesses to retail outlet and develop software program utilizing Git model control as nicely as automate the deployment pipeline.

The issue impacts all versions of GHES prior to 3.13. and has been dealt with in versions 3.9.15, 3.10.12, 3.11.10 and 3.12.4.

GitHub even more noted that encrypted assertions are not enabled by default and that the flaw does not have an impact on circumstances that do not utilize SAML one indicator-on (SSO) or individuals that use SAML SSO authentication without having encrypted assertions.

Encrypted assertions enable website administrators to enhance a GHES instance’s security with SAML SSO by encrypting the messages that the SAML identification provider (IdP) sends in the course of the authentication method.

Businesses that are utilizing a susceptible variation of GHES are advised to update to the most current variation to protected against opportunity security threats.

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