Description (CNA)
Mattermost versions 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12, 11.0.x <= 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of authentication data during the OAuth completion flow. This requires email verification to be disabled (default: disabled), OAuth/OpenID Connect to be enabled, and the attacker to control two users in the SSO system with one of them never having logged into Mattermost.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Mattermost / Mattermost | affected 10.12.0 through 10.12.1; affected 10.11.0 through 10.11.4; affected 10.5.0 through 10.5.12; affected 11.0.0 through 11.0.3; unaffected 11.1.0; unaffected 10.12.2; unaffected 10.11.5; unaffected 10.5.13; unaffected 11.0.4 |
CWE
CWE-303
References
ADP enrichment
No English description supplied.
No references supplied.