SB2024020821 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)

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Main Vulnerability Database SB2024020821

SB2024020821 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)

Published: February 8, 2024

Security Bulletin ID SB2024020821
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Improper access control (CVE-ID: CVE-2024-1250)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote administrator can create group access tokens with Owner privileges and gain elevated privileges on the system.


2) Improper access control (CVE-ID: CVE-2023-6840)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions within block_branch_modification setting. A remote administrator can change the name of a protected branch that bypasses the security policy added to block MR.


3) Incorrect Regular Expression (CVE-ID: CVE-2023-6386)

CWE-ID: CWE-185 - Incorrect Regular Expression

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions in CI/CD Pipeline Editor while verifying Pipeline syntax. A remote user can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.


4) Resource exhaustion (CVE-ID: CVE-2024-1066)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when using GraphQL "vulnerabilitiesCountByDay". A remote user can trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References