CVE-2024-36257 LOW

CVE-2024-36257: Lack of permission check when updating the profile picture of a remote user (shared channels enabled)

Vendor Mattermost
Product Mattermost
Weakness CWE-284
Published July 3, 2024
Last update August 2, 2024
View on NVD All CVEs

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

Mattermost versions 9.5.x <= 9.5.5 and 9.8.0, when using shared channels with multiple remote servers connected, fail to check that the remote server A requesting the server B to update the profile picture of a user is the remote that actually has the user as a local one . This allows a malicious remote A to change the profile images of users that belong to another remote server C that is connected to the server A.

Key dates

02Disclosure timeline

July 3, 2024 CVE published
August 2, 2024 Record updated