Auth bypass in Gerrit
CVE-2020-8920
An information leak vulnerability exists in Gerrit versions prior to 2.14.22, 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5 where an overoptimization with the FilteredRepository wrapper skips the verification of access on All-Users repositories, allowing an attacker to get read access to all users' personal information associated with their accounts.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Gerrit — versions stable
- Google Gerrit
Weakness classification (CWE)
References
- www.gerritcodereview.com/2.15.html (Release Notes, Vendor Advisory)
- www.gerritcodereview.com/2.16.html (Release Notes, Vendor Advisory)
- www.gerritcodereview.com/3.0.html (Release Notes, Vendor Advisory)
- www.gerritcodereview.com/3.1.html (Release Notes, Vendor Advisory)
- www.gerritcodereview.com/3.2.html (Release Notes, Vendor Advisory)
- gerrit.googlesource.com/gerrit/+/45071d6977932bca5a1427c8abad24710fed2e33 (Patch, Issue Tracking, Vendor Advisory)
- www.gerritcodereview.com/2.14.html (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-8920?
- CVE-2020-8920 is a low-severity vulnerability in Gerrit, classified under Improper Authorization. CVSS score: 3.5/10. Published 2020-12-10.
- How severe is CVE-2020-8920?
- Low severity. CVSS v3 base score is 3.5 out of 10.