CVE-2024-47003: DoS via non-string message using permalink embed
First published: Thu Sep 26 2024(Updated: )
Mattermost does not strip `embeds` from `metadata` when broadcasting `posted` events. This allows users to include arbitrary embeds in posts, which are then broadcasted via websockets. This can be exploited in many ways, for example to create permalinks with fully customizable content or to trigger a client Side Denial of Service (DoS) by sending a permalink with a non-string message. The advisory metadata references the appropriate go pseudo version available from pkg.go.dev
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost Mattermost Server | >=9.5.0<9.5.9 | |
| Mattermost Mattermost Server | =9.11.0 | |
| Mattermost Mattermost Server | =9.11.0-rc1 | |
| Mattermost Mattermost Server | =9.11.0-rc2 | |
| Mattermost Mattermost Server | =9.11.0-rc3 | |
| go/github.com/mattermost/mattermost/server/v8 | <8.0.0-20240806094731-69a8b3df0f9f | 8.0.0-20240806094731-69a8b3df0f9f |
Remedy
Update Mattermost to versions 10.0.0, 9.11.1, 9.5.9 or higher.
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Reference Links
- https://mattermost.com/security-updates
- https://nvd.nist.gov/vuln/detail/CVE-2024-47003
- https://github.com/mattermost/mattermost/pull/27763
- https://github.com/mattermost/mattermost/commit/69a8b3df0f9fd3a7a5b792ec678b6191618d039b
- https://github.com/c0rydoras/cves/tree/main/CVE-2024-47003
- https://github.com/advisories/GHSA-59hf-mpf8-pqjh (Advisory)
- agent/remedy
- agent/title
- agent/weakness
- agent/type
- agent/first-publish-date
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-59hf-mpf8-pqjh
- alias/CVE-2024-47003
- agent/last-modified-date
- agent/severity
- agent/author
- agent/references
- agent/tags
- agent/description
- collector/nvd-cve
- agent/softwarecombine
- agent/event
- collector/mitre-cve
- source/MITRE
- collector/github-advisory
- vendor/mattermost
- canonical/mattermost mattermost server
- version/mattermost mattermost server/9.5.0
- version/mattermost mattermost server/9.11.0
- version/mattermost mattermost server/9.11.0-rc1
- version/mattermost mattermost server/9.11.0-rc2
- version/mattermost mattermost server/9.11.0-rc3
- package-manager/go