CVE-2023-28357 Information disclosure in Rocket.Chat
Authenticated users can enumerate private channel members due to flawed access control checks in the mute command.
- 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-2023-28357?
CVE-2023-28357 is a medium-severity vulnerability in Rocket.chat Rocket.chat, published on 11 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been identified in Rocket.Chat, where the ACL checks in the Slash Command /mute occur after checking whether a user is a member of a given channel, leaking private channel members to unauthorized users. This allows authenticated users to enumerate whether a username is a member of a channel that they do not have access to.
Which versions are affected by CVE-2023-28357?
It affects 1 product.
Products include Rocket.chat Rocket.chat.
How do I fix CVE-2023-28357?
No fix has been published for CVE-2023-28357 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-28357 being exploited?
There is no known exploitation of CVE-2023-28357 in the wild and no public exploit code.
Other vulnerabilities in Rocket.chat Rocket.chat
Sources
Also known as GHSA-463w-cvvx-2q2c.