Bypass of System Admin User Deactivation Controls for Personal Access Tokens in Mattermost Server
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens.
Problem Types
| Type | CWE ID | Description |
|---|
| CWE | CWE-303 | CWE-303: Incorrect Implementation of Authentication Algorithm |
Type: CWE
Description: CWE-303: Incorrect Implementation of Authentication Algorithm
Metrics
| Version | Base score | Base severity | Vector |
|---|
| 3.1 | 5.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N