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CVE-2023-23761

7.7 · HIGH

An improper authentication vulnerability was identified in GitHub Enterprise Server that allowed an unauthorized actor to modify other users' secret gists by authenticating through an SSH certifica…

Published Apr 7, 2023CWE-287EPSS 0.46%

Overview

CVE-2023-23761 is a high-severity vulnerability. It was published on April 7, 2023 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

An improper authentication vulnerability was identified in GitHub Enterprise Server that allowed an unauthorized actor to modify other users' secret gists by authenticating through an SSH certificate authority. To do so, a user had to know the secret gist's URL. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.4.18GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.5.15GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.6.11GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.7.8GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.8.1GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.4.18GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.5.15GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.6.11GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.7.8GitHubdocs.github.com/en/[email protected]/admin/release-notes#3.8.1

How CyberStrike helps

Frequently asked questions

What is CVE-2023-23761?

CVE-2023-23761 is a high-severity vulnerability. It was published on April 7, 2023 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2023-23761?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-23761?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-23761?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-23761 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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