CVE-2024-34029

AD/LDAP Group Members Leak

Description

Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1 and 8.1.x <= 8.1.12 fail to perform a proper authorization check in the /api/v4/groups/<group-id>/channels/<channel-id>/link endpoint which allows a user to learn the members of an AD/LDAP group that is linked to a team by adding the group to a channel, even if the user has no access to the team.

Remediation

Solution:

  • Update Mattermost to versions 9.8.0, 9.5.4, 9.7.2, 8.1.13 or higher.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
Affected: Mattermost Mattermost
Published at:
Updated at:

References

Link Tags
https://mattermost.com/security-updates

Frequently Asked Questions

What is the severity of CVE-2024-34029?
CVE-2024-34029 has been scored as a medium severity vulnerability.
How to fix CVE-2024-34029?
To fix CVE-2024-34029: Update Mattermost to versions 9.8.0, 9.5.4, 9.7.2, 8.1.13 or higher.
Is CVE-2024-34029 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-34029 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-34029?
CVE-2024-34029 affects Mattermost Mattermost.
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