CVE-2020-27607 Information disclosure in n/a
A malicious server can capture and transmit audio from muted clients because the mute button only stops server-side processing, not client-side transmission.
- 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-2020-27607?
CVE-2020-27607 is a medium-severity vulnerability in n/a, published on 21 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In BigBlueButton before 2.2.28 (or earlier), the client-side Mute button only signifies that the server should stop accepting audio data from the client. It does not directly configure the client to stop sending audio data to the server, and thus a modified server could store the audio data and/or transmit it to one or more meeting participants or other third parties.
Which versions are affected by CVE-2020-27607?
It affects 1 product.
Products include Bigbluebutton Bigbluebutton.
How do I fix CVE-2020-27607?
No fix has been published for CVE-2020-27607 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-27607 being exploited?
There is no known exploitation of CVE-2020-27607 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-57h6-vpq8-cwg3.