GitLab 10.5 < 14.3.6 / 14.4 < 14.4.4 / 14.5 < 14.5.2 (CVE-2021-39935)

high Nessus Plugin ID 187591

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Synopsis

The version of GitLab installed on the remote host is affected by a vulnerability.

Description

The version of GitLab installed on the remote host is affected by a vulnerability, as follows:

- 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 (CVE-2021-39935)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to GitLab version 14.3.6, 14.4.4, 14.5.2 or later.

Plugin Details

Severity: High

ID: 187591

File Name: gitlab_cve-2021-39935.nasl

Version: 1.2

Type: combined

Agent: unix

Family: CGI abuses

Published: 1/3/2024

Updated: 2/3/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2021-39935

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:gitlab:gitlab

Required KB Items: installed_sw/GitLab

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/6/2021

Vulnerability Publication Date: 12/6/2021

CISA Known Exploited Vulnerability Due Dates: 2/24/2026

Reference Information

CVE: CVE-2021-39935

Detections

Analytics