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CVE-2021-39935

MEDIUM
Published 2021-12-13T15:47:59
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CVSS Score

V3.1
6.8
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.469
Higher than 46.9% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API

Available Exploits

Gitlab CE/EE 10.5 - Server-Side Request Forgery

GitLab CE/EE versions starting from 10.5 are susceptible to a server-side request forgery vulnerability when requests to the internal network for webhooks are enabled, even on a GitLab instance where registration is limited. The same vulnerability actually spans multiple CVEs, due to similar reports that were fixed across separate patches. These CVEs are: - CVE-2021-39935 - CVE-2021-22214 - CVE-2021-22175

ID: CVE-2021-22214
Author: Suman_KarGitLabRedTeam High

References:

Related News

No news articles found for this CVE.

Affected Products

GitLab

GitLab

Affected Versions:

>=10.5, <14.3.6 >=14.4, <14.4.4 >=14.5, <14.5.2

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-22hj-9cx7-p2hw

Advisory Details

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.5 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Unauthorized external users could perform Server Side Requests via the CI Lint API

CVSS Scoring

CVSS Score

7.5

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-39935
WEB https://hackerone.com/reports/1236965
WEB https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json
WEB https://gitlab.com/gitlab-org/gitlab/-/issues/346187

Advisory provided by GitHub Security Advisory Database. Published: December 14, 2021, Modified: December 16, 2021

References

https://gitlab.com/gitlab-org/gitlab/-/issues/346187
https://hackerone.com/reports/1236965
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39935.json
Published: 2021-12-13T15:47:59
Last Modified: 2024-08-04T02:20:34.211Z
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