Mattermost up to 9.5.6/9.9.0 RemoteId access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mattermost up to 9.5.6/9.9.0. This affects an unknown function. This manipulation of the argument RemoteId causes access control. This vulnerability is handled as CVE-2024-41926. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mattermost up to 9.5.6/9.9.0. It has been declared as problematic. Affected by this vulnerability is some unknown processing. The manipulation of the argument RemoteId 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 integrity, and availability. The summary by CVE is:

Mattermost versions 9.9.x <= 9.9.0 and 9.5.x <= 9.5.6 fail to validate the source of sync messages and only allow the correct remote IDs, which allows a malicious remote to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.

The weakness was released by Juho Forsén. It is possible to read the advisory at mattermost.com. This vulnerability is known as CVE-2024-41926 since 07/23/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation needs additional levels of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 9.5.7, 9.9.1 or 9.10.0 eliminates this vulnerability.

Be aware that VulDB is the high quality 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: 3.6
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.8
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CNA Base Score: 2.7
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 9.5.7/9.9.1/9.10.0

Timelineinfo

07/23/2024 🔍
08/01/2024 +9 days 🔍
08/01/2024 +0 days 🔍
09/04/2024 +34 days 🔍

Sourcesinfo

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

CVE: CVE-2024-41926 (🔍)
GCVE (CVE): GCVE-0-2024-41926
GCVE (VulDB): GCVE-100-273391

Entryinfo

Created: 08/01/2024 16:49
Updated: 09/04/2024 19:20
Changes: 08/01/2024 16:49 (64), 09/04/2024 19:20 (13)
Complete: 🔍
Cache ID: 216::103

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