CVE-2022-2408 Guest accounts can list all public channels
Guest users can improperly list all public channels in a team, exposing channel metadata to unauthorized users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-2408?
CVE-2022-2408 is a medium-severity missing authorization vulnerability in Mattermost Mattermost, published on 14 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.
Which versions are affected by CVE-2022-2408?
It affects 1 product.
Products include Mattermost Mattermost.
How do I fix CVE-2022-2408?
No fix has been published for CVE-2022-2408 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2022-2408 being exploited?
There is no known exploitation of CVE-2022-2408 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-2024-39830 Timing attack during remote cluster token comparison when shared channels are enabled
- CVE-2023-3615 Lack of server certificate validation in websockets connection
Sources
Also known as GHSA-3q29-6c6h-84hh.