Critical severity · published Dec 6, 2021
CVE-2021-39890
It was possible to bypass 2FA for LDAP users and access some specific pages with Basic Authentication in GitLab 14.1.1 and above
9.8
CVSS
1.1%
EPSS
No
On KEV
Description
It was possible to bypass 2FA for LDAP users and access some specific pages with Basic Authentication in GitLab 14.1.1 and above.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
14.1.1 before 14.1.7; 14.2.0 before 14.2.5; 14.3.0; 14.3.0; 14.3.1; 14.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39890
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39890
Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39890.json
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/341522
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