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CVE-2022-46257

MEDIUMCVSS 4.3/10EPSS 0.57%

Last modified

CVE-2022-46257 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. An information disclosure vulnerability was identified in GitHub Enterprise Server that allowed private repositories to be added to a GitHub Actions runner group via the API by a user who did not have access to those repositories, resulting in the repository names being shown in the UI. To exploit this vulnerability, an attacker would need access to the GHES instance, permissions to modify GitHub Actions runner groups, and successfully guess the obfuscated ID of private repositories. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

An information disclosure vulnerability was identified in GitHub Enterprise Server that allowed private repositories to be added to a GitHub Actions runner group via the API by a user who did not have access to those repositories, resulting in the repository names being shown in the UI. To exploit this vulnerability, an attacker would need access to the GHES instance, permissions to modify GitHub Actions runner groups, and successfully guess the obfuscated ID of private repositories. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.7 and was fixed in versions 3.3.17, 3.4.12, 3.5.9, 3.6.5. This vulnerability was reported via the GitHub Bug Bounty program.

Metrics

CVSS 3.1
4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability
0.57%

42.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GithubEnterprise Server>= 3.3.0, < 3.3.17
GithubEnterprise Server>= 3.4.0, < 3.4.12
GithubEnterprise Server>= 3.5.0, < 3.5.9
GithubEnterprise Server>= 3.6.0, < 3.6.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-46257?
An information disclosure vulnerability was identified in GitHub Enterprise Server that allowed private repositories to be added to a GitHub Actions runner group via the API by a user who did not have access to those repositories, resulting in the repository names being shown in the UI. To exploit this vulnerability, an attacker would need access to the GHES instance, permissions to modify GitHub Actions runner groups, and successfully guess the obfuscated ID of private repositories. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.7 and was fixed in versions 3.3.17, 3.4.12, 3.5.9, 3.6.5. This vulnerability was reported via the GitHub Bug Bounty program.
How severe is CVE-2022-46257?
CVE-2022-46257 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.
How do I fix CVE-2022-46257?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST