PT-2024-25654 · Mattermost · Mattermost

Vultza · Published 2024-05-26 · Updated 2024-06-13 · CVE-2024-34029

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Mattermost versions 8.1.x through 8.1.12 Mattermost versions 9.5.x through 9.5.3 Mattermost versions 9.7.x through 9.7.1

Description The issue is related to a failure in performing proper authorization checks in the "/api/v4/groups//channels//link" endpoint. This allows a user to determine the members of an AD/LDAP group linked to a team by adding the group to a channel, even if the user has no access to the team.

Recommendations For versions 8.1.x through 8.1.12, update to a version that includes the fix for this issue. For versions 9.5.x through 9.5.3, update to a version that includes the fix for this issue. For versions 9.7.x through 9.7.1, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the "/api/v4/groups//channels//link" endpoint until a patch is available.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2024-34029

Affected Products

Mattermost

References · 4

• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-34029 · Security Note
• https://osv.dev/vulnerability/CVE-2024-34029 · Vendor Advisory
• https://twitter.com/Hossted_OSS/status/1801502329004560626 · Twitter Post