CVE-2021-32832 ReDOS in Rocket.Chat
Attackers can cause a denial of service in Rocket.Chat by exploiting inefficient regular expressions, requiring an upgrade to patched versions.
- 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-2021-32832?
CVE-2021-32832 is a medium-severity denial of service vulnerability in Rocket.chat Rocket.chat, published on 30 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Rocket.Chat is an open-source fully customizable communications platform developed in JavaScript. In Rocket.Chat before versions 3.11.3, 3.12.2, and 3.13 an issue with certain regular expressions could lead potentially to Denial of Service. This was fixed in versions 3.11.3, 3.12.2, and 3.13.
Weakness: CWE-400
Which versions are affected by CVE-2021-32832?
It affects 1 product.
Products include Rocket.chat Rocket.chat.
How do I fix CVE-2021-32832?
No fix has been published for CVE-2021-32832 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-32832 being exploited?
There is no known exploitation of CVE-2021-32832 in the wild and no public exploit code.
Other vulnerabilities in Rocket.chat Rocket.chat
Sources
Also known as GHSA-wpp8-mvvg-33rx.