CVE-2024-41926: Malicious remote can claim that a user was synced from another remote
First published: Thu Aug 01 2024(Updated: )
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.
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/github.com/mattermost/mattermost/server/v8 | =9.9.0 | 9.9.1 |
| go/github.com/mattermost/mattermost/server/v8 | >=9.5.0<9.5.7 | 9.5.7 |
| Mattermost Mattermost Server | >=9.5.0<9.5.7 | |
| Mattermost Mattermost Server | =9.9.0 | |
| >=9.5.0<9.5.7 | ||
| =9.9.0 |
Remedy
Update Mattermost to versions 9.10.0, 9.9.1, 9.5.7 or higher.
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Reference Links
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- alias/GHSA-9fpw-c9x7-cv3j
- alias/CVE-2024-41926
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- collector/github-advisory
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- vendor/mattermost
- canonical/mattermost mattermost server
- version/mattermost mattermost server/9.5.0
- version/mattermost mattermost server/9.9.0
- package-manager/go