Vulnerability CVE-2020-8919
Published: 2020-12-10

Description:
An information leak vulnerability exists in Gerrit versions prior to 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5 where a missing access check on the branch REST API allows an attacker with only the default set of priviledges to read all other user's personal account data as well as sub-trees with restricted access.

Type:

CWE-863

 (Incorrect Authorization)

CVSS2 => (AV:A/AC:L/Au:S/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.7/10
2.9/10
5.1/10
Exploit range
Attack complexity
Authentication
Adjacent network
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Google -> Gerrit 

 References:
https://gerrit.googlesource.com/gerrit/+/0532fb876cb86bc091a91f78e6f28fff9e39ca65
https://www.gerritcodereview.com/2.15.html#21521
https://www.gerritcodereview.com/2.16.html#21625
https://www.gerritcodereview.com/3.0.html#3014
https://www.gerritcodereview.com/3.1.html#3110
https://www.gerritcodereview.com/3.2.html#325
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