Auth bypass in GitHub
CVE-2020-10517
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.011 (62.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- GitHub
- GitHub Enterprise Server — versions 2.21, 2.20, 2.19
Weakness classification (CWE)
References
- enterprise.github.com/releases/2.19.21/notes (Release Notes, Vendor Advisory)
- enterprise.github.com/releases/2.20.15/notes (Release Notes, Vendor Advisory)
- enterprise.github.com/releases/2.21.6/notes (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-10517?
- CVE-2020-10517 is a medium-severity vulnerability in GitHub, classified under Improper Authorization. CVSS score: 4.3/10. Published 2020-08-27.
- How severe is CVE-2020-10517?
- Medium severity. CVSS v3 base score is 4.3 out of 10.