CVE-2020-10517

Improper access control in GitHub Enterprise Server leading to the enumeration of private repository names

Description

An improper access control vulnerability was identified in GitHub Enterprise Server that allowed authenticated users of the instance to determine the names of unauthorized private repositories given their numerical IDs. This vulnerability did not allow unauthorized access to any repository content besides the name. This vulnerability affected all versions of GitHub Enterprise Server prior to 2.22 and was fixed in versions 2.21.6, 2.20.15, and 2.19.21. This vulnerability was reported via the GitHub Bug Bounty program.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.21%
Vendor Advisory github.com Vendor Advisory github.com Vendor Advisory github.com
Affected: GitHub GitHub Enterprise Server
Published at:
Updated at:

References

Link Tags
https://enterprise.github.com/releases/2.19.21/notes release notes vendor advisory
https://enterprise.github.com/releases/2.20.15/notes release notes vendor advisory
https://enterprise.github.com/releases/2.21.6/notes release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-10517?
CVE-2020-10517 has been scored as a medium severity vulnerability.
How to fix CVE-2020-10517?
To fix CVE-2020-10517, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-10517 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-10517 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-10517?
CVE-2020-10517 affects GitHub GitHub Enterprise Server.
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