#VU52199 Input validation error in Zoom Workplace Desktop App for Windows - CVE-2021-30480
Published: April 14, 2021 / Updated: May 24, 2022
Vulnerability identifier: #VU52199
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-30480
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Zoom Workplace Desktop App for Windows
Zoom Workplace Desktop App for Windows
Software vendor:
Zoom Video Communications, Inc.
Zoom Video Communications, Inc.
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input, related to contact requests in Zoom Chat feature. A remote Zoom user can pass specially crafted request to the application and execute arbitrary code on the system.
Remediation
Install update from vendor's website.
External links
- https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/04/zoom-zero-day-discovery-makes-calls-safer-hackers-200000-richer/
- https://twitter.com/thezdi/status/1379855435730149378
- https://twitter.com/thezdi/status/1379859851061395459
- https://www.securityweek.com/200000-awarded-zero-click-zoom-exploit-pwn2own
- https://www.zdnet.com/article/critical-zoom-vulnerability-triggers-remote-code-execution-without-user-input/
- https://zoom.us/feature/messaging