Zoom is the popular video conferencing app that grew rapidly and it has more than 200M by the mid-2020. The popularity of the app made it a prime target for hackers.
Security researcher Mazin Ahmed, who presented his findings at DEFCON 2020 and disclosed the vulnerabilities to Zoom. All the vulnerabilities fixed with version 5.2.4.
Ahmed discovered the vulnerability with Zoom Launcher for Linux that could allow an attacker to run any unauthorized software in the way it launches the “zoom” executable.
He used a vulnerability intelligence platform FullHunt.io to query the domains associated with Zoom. Here is the list of vulnerabilities;
Flaws With Zoom App for Linux:
During the analysis , he observed a Kerberos service has been exposed by Zoom that provides a wider attack surface to enumerate the Login Credentials.
He also published a POC video, exploiting the leak;
Ahmed found that “Zoom TLS/SSL is Broken By Design on Linux, here wrote a PoC that injects TLS/SSL certificate fingerprints into the local Zoom database. Once this code is executed on a user machine, all injected certificates will be accepted without errors on Zoom.”
He also added that Zoom is not fully End-to-End Encrypted.
Zoom released an update on August 3rd, 2020, in the update with the Zoom version 5.2.4 all the security vulnerabilities has been fixed.
Other Zoom Flaws
A New Zoom URL Flaw Let Hackers Mimic Organization’s Invitation Link
Zoom 0day Vulnerability Let Remote Attacker to Execute Arbitrary Code on Victim’s Computer
New Zoom Flaw Let Attackers to Hack into the Systems of Participants via Chat Messages
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