Medium severity · published Jul 3, 2024
CVE-2024-39830
Timing attack during remote cluster token comparison when shared channels are enabled
5.9
CVSS
0.4%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
9.8.0; 9.7.0 through 9.7.4; 9.6.0 through 9.6.2; 9.5.0 through 9.5.5 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-39830
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-39830
Vendor Advisory
https://mattermost.com/security-updates
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