Vulnerability identifier: #VU27054
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-254
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Zoom Client for Windows
Client/Desktop applications /
Office applications
Vendor: Zoom Video Communications, Inc.
Description
This vulnerability allows a remote attacker to bypass security rescritions feature.
The vulnerability exists due to the "airhost.exe" uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption. A remote attacker can gain unauthorized access to the application.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Zoom Client for Windows: 4.6.11 20559.0413
External links
http://dev.io/posts/zoomzoo/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.