CVE-2021-39909
GitLab EE Email Address Verification Bypass Vulnerability
Description
Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE starting from 11.3 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows an attacker to bypass CODEOWNERS Merge Request approval requirement under rare circumstances
INFO
Published Date :
Nov. 5, 2021, 12:15 a.m.
Last Modified :
Nov. 21, 2024, 6:20 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
1.6
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-39909.
| URL | Resource |
|---|---|
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39909.json | Vendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/issues/335191 | Broken Link |
| https://hackerone.com/reports/1237750 | Permissions Required Third Party Advisory |
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39909.json | Vendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/issues/335191 | Broken Link |
| https://hackerone.com/reports/1237750 | Permissions Required Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-39909 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-39909 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39909.json Added Reference https://gitlab.com/gitlab-org/gitlab/-/issues/335191 Added Reference https://hackerone.com/reports/1237750 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 06, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 11.1.0 up to (excluding) 14.2.6 OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 11.3.0 up to (excluding) 14.2.6 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 14.3.0 up to (excluding) 14.3.4 *cpe:2.3:a:gitlab:gitlab:14.4.0:*:*:*:enterprise:*:*:* -
CVE Modified by [email protected]
May. 13, 2022
Action Type Old Value New Value Changed Description Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE since version 11.3 allows an attacker to bypass CODEOWNERS Merge Request approval requirement under rare circumstances Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE starting from 11.3 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows an attacker to bypass CODEOWNERS Merge Request approval requirement under rare circumstances -
Initial Analysis by [email protected]
Nov. 08, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39909.json No Types Assigned https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39909.json Vendor Advisory Changed Reference Type https://gitlab.com/gitlab-org/gitlab/-/issues/335191 No Types Assigned https://gitlab.com/gitlab-org/gitlab/-/issues/335191 Broken Link Changed Reference Type https://hackerone.com/reports/1237750 No Types Assigned https://hackerone.com/reports/1237750 Permissions Required, Third Party Advisory Added CWE NIST CWE-347 Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 11.1.0 up to (excluding) 14.2.6 Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 11.2.0 up to (excluding) 14.3.4 Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 11.3.0 up to (excluding) 14.4.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-39909 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-39909
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} -0.00%
score
0.29052
percentile