GitLab Enterprise Edition prior 16.2.8/16.3.5/16.4.1 Merge Request access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in GitLab Enterprise Edition. It has been declared as critical. The impacted element is an unknown function of the component Merge Request Handler. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2023-4379. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GitLab Enterprise Edition (Bug Tracking Software) and classified as critical. Affected by this issue is some unknown processing of the component Merge Request Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue has been discovered in GitLab EE affecting all versions starting from 15.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1. Code owner approval was not removed from merge requests when the target branch was updated.

The weakness was disclosed 11/10/2023 as 415496. The advisory is available at gitlab.com. This vulnerability is handled as CVE-2023-4379 since 08/16/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 16.2.8, 16.3.5 or 16.4.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.1
CNA Vector (GitLab Inc.): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Enterprise Edition 16.2.8/16.3.5/16.4.1

Timelineinfo

08/16/2023 🔍
11/10/2023 +86 days 🔍
11/10/2023 +0 days 🔍
04/21/2025 +528 days 🔍

Sourcesinfo

Vendor: gitlab.com

Advisory: 415496
Status: Confirmed

CVE: CVE-2023-4379 (🔍)
GCVE (CVE): GCVE-0-2023-4379
GCVE (VulDB): GCVE-100-244922

Entryinfo

Created: 11/10/2023 06:27
Updated: 04/21/2025 04:59
Changes: 11/10/2023 06:27 (51), 12/06/2023 07:18 (11), 10/03/2024 13:55 (16), 04/21/2025 04:59 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!