CVE-2021-39215 Authentication Bypass: Forged Tokens Allow Access to Arbitrary Rooms
Attackers can use forged tokens to bypass authentication and access protected video conferencing rooms in Jitsi Meet.
- 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-2021-39215?
CVE-2021-39215 is a high-severity authentication bypass vulnerability in jitsi-meet, published on 15 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Jitsi Meet is an open source video conferencing application. In versions prior to 2.0.5963, a Prosody module allows the use of symmetrical algorithms to validate JSON web tokens. This means that tokens generated by arbitrary sources can be used to gain authorization to protected rooms. This issue is fixed in Jitsi Meet 2.0.5963. There are no known workarounds aside from updating.
Weakness: CWE-287
Which versions are affected by CVE-2021-39215?
It affects 1 product.
Products include 8x8 Jitsi Meet.
How do I fix CVE-2021-39215?
No fix has been published for CVE-2021-39215 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-39215 being exploited?
There is no known exploitation of CVE-2021-39215 in the wild and no public exploit code.