GitLab Community and Enterprise Editions before 10.1.6, 10.2.6, and 10.3.4 are vulnerable to an authorization bypass issue in the Projects::MergeRequests::CreationsController component resulting in an attacker to see every project name and their respective namespace on a GitLab instance.
Published 2018-03-22 15:29:00
Updated 2019-10-03 00:03:26
Source HackerOne
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2017-0920

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-0920

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.0
MEDIUM AV:N/AC:L/Au:S/C:P/I:N/A:N
8.0
2.9
NIST
4.3
MEDIUM CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
2.8
1.4
NIST

CWE ids for CVE-2017-0920

  • The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
    Assigned by: support@hackerone.com (Secondary)
  • The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-0920

Products affected by CVE-2017-0920

  • Gitlab » Gitlab » Community Edition
    Versions after (>) 10.3.0 and up to, including, (<=) 10.3.3
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
  • Gitlab » Gitlab » Enterprise Edition
    Versions from including (>=) 8.8.0 and up to, including, (<=) 10.1.5
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
  • Gitlab » Gitlab » Enterprise Edition
    Versions from including (>=) 10.3.0 and up to, including, (<=) 10.3.3
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
  • Gitlab » Gitlab » Community Edition
    Versions after (>) 8.8.0 and up to, including, (<=) 10.1.5
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
  • Gitlab » Gitlab » Enterprise Edition
    Versions from including (>=) 10.2.0 and up to, including, (<=) 10.2.5
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
  • Gitlab » Gitlab » Community Edition
    Versions after (>) 10.2.0 and up to, including, (<=) 10.2.5
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
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