Mattermost up to 9.5.5/9.6.2/9.7.4/9.8.0 User Management access control

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Mattermost up to 9.5.5/9.6.2/9.7.4/9.8.0. Affected by this vulnerability is an unknown functionality of the component User Management Handler. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2024-6428. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mattermost up to 9.5.5/9.6.2/9.7.4/9.8.0 and classified as critical. This vulnerability affects an unknown functionality of the component User Management 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 availability. CVE summarizes:

Mattermost versions 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2, 9.5.x <= 9.5.5 fail to prevent specifying a RemoteId when creating a new user which allows an attacker to specify both a remoteId and the user ID, resulting in creating a user with a user-defined user ID. This can cause some broken functionality in User Management such administrative actions against the user not working.

The weakness was disclosed by Juho Forsén. The advisory is shared for download at mattermost.com. This vulnerability was named CVE-2024-6428 since 07/01/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 9.5.6, 9.6.3, 9.7.5, 9.8.1 or 9.9.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Mattermost): 🔍

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: Mattermost 9.5.6/9.6.3/9.7.5/9.8.1/9.9.0

Timelineinfo

07/01/2024 🔍
07/03/2024 +2 days 🔍
07/03/2024 +0 days 🔍
07/06/2024 +3 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Juho Forsén
Status: Confirmed

CVE: CVE-2024-6428 (🔍)
GCVE (CVE): GCVE-0-2024-6428
GCVE (VulDB): GCVE-100-270292

Entryinfo

Created: 07/03/2024 11:05
Updated: 07/06/2024 05:24
Changes: 07/03/2024 11:05 (64), 07/06/2024 05:24 (12)
Complete: 🔍
Cache ID: 216::103

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