CVE-2024-39830 Timing attack during remote cluster token comparison when shared channels are enabled
Attackers can retrieve remote cluster tokens via timing attacks when shared channels are enabled, potentially bypassing authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-39830?
CVE-2024-39830 is a high-severity vulnerability in Mattermost Mattermost, published on 3 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2024-39830?
It affects 1 product.
Products include Mattermost Mattermost.
How do I fix CVE-2024-39830?
No fix has been published for CVE-2024-39830 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-39830 being exploited?
There is no known exploitation of CVE-2024-39830 in the wild and no public exploit code.
Other vulnerabilities in Mattermost Mattermost
- CVE-2019-20851 Path traversal in n/a
- CVE-2024-39274 Malicious remote can add users to arbitrary teams and channels
- CVE-2024-39777 Malicious remote can invite itself to an arbitrary local channel
- CVE-2023-3615 Lack of server certificate validation in websockets connection
- CVE-2020-13891 Information disclosure in n/a
Sources
Also known as GHSA-vmvm-jjvw-qwpw.