CVE-2021-4191
GitLab User Enumeration via GraphQL API
Description
An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnerable to user enumeration to unauthenticated users through the GraphQL API.
INFO
Published Date :
March 28, 2022, 7:15 p.m.
Last Modified :
Nov. 21, 2024, 6:37 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-4191 has a 8 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-4191.
| URL | Resource |
|---|---|
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.json | Vendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/issues/343898 | Broken Link |
| https://hackerone.com/reports/1089609 | Permissions Required Third Party Advisory |
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.json | Vendor Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/issues/343898 | Broken Link |
| https://hackerone.com/reports/1089609 | 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).
A PoC exploit for CVE-2021-4191 - GitLab User Enumeration.
api exploit exploitation gitlab graphql user-enumeration cve-2021-4191
Python
None
Python
a Curated list of gitlab vulnerability
gitlab cve gitlab-api gitlab-ce gitlab-migrated graphql userenumeration api git pentesting
A really good cybersec reading materials.
cybersecurity infosec penetration-testing
None
Config files for my GitHub profile.
config github-config
Repository of Bug-Bounty Writeups
bugbounty fuzzing penetration-testing security-tools
essential templates for kenzer [DEPRECATED]
kenzer vulnerabilities kenzer-templates arpsyndicate
Python Shell Ruby
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-4191 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-4191 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.
-
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-2021-4191.json Added Reference https://gitlab.com/gitlab-org/gitlab/-/issues/343898 Added Reference https://hackerone.com/reports/1089609 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 12, 2022
Action Type Old Value New Value Changed CWE CWE-287 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Apr. 04, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.json No Types Assigned https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.json Vendor Advisory Changed Reference Type https://gitlab.com/gitlab-org/gitlab/-/issues/343898 No Types Assigned https://gitlab.com/gitlab-org/gitlab/-/issues/343898 Broken Link Changed Reference Type https://hackerone.com/reports/1089609 No Types Assigned https://hackerone.com/reports/1089609 Permissions Required, Third Party Advisory Added CWE NIST CWE-287 Added CPE Configuration OR *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 13.0.0 up to (excluding) 14.6.5 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 13.0.0 up to (excluding) 14.6.5 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 14.7.0 up to (excluding) 14.7.4 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 14.7.0 up to (excluding) 14.7.4 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* versions from (including) 14.8 up to (excluding) 14.8.2 *cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* versions from (including) 14.8 up to (excluding) 14.8.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-4191 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-2021-4191
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
52.33 }} -5.77%
score
0.97681
percentile