CVE-2024-39830

Timing attack during remote cluster token comparison when shared channels are enabled

CVSS 8.1 HIGHEPSS 0.4%CWE-287

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.1EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

03 Jul 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Mattermost versions 9.8.x <= 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2 and 9.5.x <= 9.5.5, when shared channels are enabled, fail to use constant time comparison for remote cluster tokens which allows an attacker to retrieve the remote cluster token via a timing attack during remote cluster token comparison.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Mattermost · Mattermost

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References

https://mattermost.com/security-updates