CVE-2023-2515: Privilege escalation to system admin via personal access tokens
First published: Fri May 12 2023(Updated: )
Mattermost fails to restrict a user with permissions to edit other users and to create personal access tokens from elevating their privileges to system admin
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost Mattermost Server | <7.1.8 | |
| Mattermost Mattermost Server | >=7.2.0<7.7.4 | |
| Mattermost Mattermost Server | >=7.8.0<7.8.3 | |
| Mattermost Mattermost Server | >=7.9.0<7.9.2 | |
| go/github.com/mattermost/mattermost-server/v6 | >=7.9.0<7.9.2 | 7.9.2 |
| go/github.com/mattermost/mattermost-server/v6 | >=7.8.0<7.8.3 | 7.8.3 |
| go/github.com/mattermost/mattermost-server/v6 | >=7.2.0<7.7.4 | 7.7.4 |
| go/github.com/mattermost/mattermost-server/v6 | <7.1.8 | 7.1.8 |
Remedy
Update Mattermost Server to versions 7.1.8, 7.7.4, 7.8.3, 7.9.2 or higher.
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Reference Links
Frequently Asked Questions
What is CVE-2023-2515?
CVE-2023-2515 is a vulnerability in Mattermost that allows a user with certain permissions to escalate their privileges to system admin.
How does Mattermost restrict user privileges in this vulnerability?
Mattermost fails to restrict a user with permissions to edit other users and create personal access tokens from elevating their privileges to system admin.
Which versions of Mattermost are affected by CVE-2023-2515?
The following versions of Mattermost are affected: 7.1.8, 7.2.0 to 7.7.4, 7.8.0 to 7.8.3, and 7.9.0 to 7.9.2.
What is the severity of CVE-2023-2515?
CVE-2023-2515 has a severity rating of 8.8 (high).
How can I fix CVE-2023-2515?
To fix CVE-2023-2515, upgrade Mattermost to a version that is not affected by the vulnerability.
- collector/nvd-index
- collector/github-advisory-latest
- alias/GHSA-7g2v-2frm-rg94
- alias/CVE-2023-2515
- collector/nvd-cve
- collector/github-advisory
- agent/author
- agent/type
- agent/softwarecombine
- agent/weakness
- agent/severity
- agent/references
- agent/title
- agent/remedy
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- vendor/mattermost
- canonical/mattermost mattermost server
- version/mattermost mattermost server/7.2.0
- version/mattermost mattermost server/7.8.0
- version/mattermost mattermost server/7.9.0
- package-manager/go