High severity · published Jan 23, 2017
CVE-2016-4340
The impersonate feature in Gitlab 8.7.0, 8.6.0 through 8.6.7, 8.5.0 through 8.5.11, 8.4.0 through 8.4.9, 8.3.0 through 8.3.8, and 8.2.0 through 8.2.4 allows remote authenticated…
8.8
CVSS
10.1%
EPSS
No
On KEV
Description
The impersonate feature in Gitlab 8.7.0, 8.6.0 through 8.6.7, 8.5.0 through 8.5.11, 8.4.0 through 8.4.9, 8.3.0 through 8.3.8, and 8.2.0 through 8.2.4 allows remote authenticated users to "log in" as any other user via unspecified vectors.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)10.1% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
8.2.0; 8.2.1; 8.2.2; 8.2.3; 8.2.4; 8.3.0; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4340
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4340
Exploit
http://packetstormsecurity.com/files/138368/GitLab-Impersonate-Privilege-Escalation.html
Mitigation
https://about.gitlab.com/2016/05/02/cve-2016-4340-patches/
Issue Tracking
https://gitlab.com/gitlab-org/gitlab-ce/issues/15548
Exploit
https://www.exploit-db.com/exploits/40236/
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