GitLab Enterprise Edition prior 16.6.7/16.7.5/16.8.2 Protected Branch access control

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in GitLab Enterprise Edition. This affects an unknown part of the component Protected Branch Handler. Executing a manipulation can lead to access control. This vulnerability is handled as CVE-2023-6840. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in GitLab Enterprise Edition (Bug Tracking Software) and classified as critical. This vulnerability affects an unknown functionality of the component Protected Branch Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue has been discovered in GitLab EE affecting all versions from 16.4 prior to 16.6.7, 16.7 prior to 16.7.5, and 16.8 prior to 16.8.2 which allows a maintainer to change the name of a protected branch that bypasses the security policy added to block MR.

The weakness was released 02/08/2024 by js_noob as 435500. The advisory is shared for download at gitlab.com. This vulnerability was named CVE-2023-6840 since 12/15/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 16.6.7, 16.7.5 or 16.8.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector (GitLab Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Enterprise Edition 16.6.7/16.7.5/16.8.2

Timelineinfo

12/15/2023 🔍
02/08/2024 +55 days 🔍
02/08/2024 +0 days 🔍
10/03/2024 +238 days 🔍

Sourcesinfo

Vendor: gitlab.com

Advisory: 435500
Researcher: js_noob
Status: Confirmed

CVE: CVE-2023-6840 (🔍)
GCVE (CVE): GCVE-0-2023-6840
GCVE (VulDB): GCVE-100-253156

Entryinfo

Created: 02/08/2024 09:34
Updated: 10/03/2024 14:17
Changes: 02/08/2024 09:34 (53), 10/03/2024 14:17 (27)
Complete: 🔍
Cache ID: 216::103

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