PT-2024-28415 · Mattermost · Mattermost

Juho Forsén · Published 2024-08-01 · Updated 2024-08-23 · CVE-2024-39274

Positive Technologies (AI Summary)

CVSS v4.0

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Name of the Vulnerable Software and Affected Versions Mattermost versions 9.5.x through 9.5.6 Mattermost versions 9.7.x through 9.7.5 Mattermost versions 9.8.x through 9.8.1 Mattermost versions 9.9.x through 9.9.0

Description The issue arises from the failure to properly validate that the channel coming from the sync message is a shared channel when shared channels are enabled. This allows a malicious remote to add users to arbitrary teams and channels.

Recommendations For Mattermost versions 9.5.x through 9.5.6, update to a version later than 9.5.6 to resolve the issue. For Mattermost versions 9.7.x through 9.7.5, update to a version later than 9.7.5 to resolve the issue. For Mattermost versions 9.8.x through 9.8.1, update to a version later than 9.8.1 to resolve the issue. For Mattermost versions 9.9.x through 9.9.0, update to a version later than 9.9.0 to resolve the issue.

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2024-39274

GHSA-CMC8-222C-VQP9

GO-2024-3028

Affected Products

Mattermost

References · 10

• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-39274 · Security Note
• https://osv.dev/vulnerability/CVE-2024-39274 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-cmc8-222c-vqp9 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2024-3028 · Vendor Advisory
• https://github.com/mattermost/mattermost · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39274 · Note
• https://pkg.go.dev/vuln/GO-2024-3028 · Note
• https://github.com/advisories/GHSA-cmc8-222c-vqp9 · Note
• https://t.me/cvedetector/2241 · Telegram Post