Input validation error in Cisco Webex Meetings Desktop App - CVE-2020-3440
Published: August 20, 2020
Vulnerability identifier: #VU45795
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3440
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to overwrite critical files on the system.
The vulnerability exists due to insufficient validation of URL parameters when handling external links within the application. A remote attacker can trick the victim to follow a specially crafted link that ones opened with Cisco Webex Meetings Desktop App for Windows may allows an attacker to overwrite arbitrary files on the system.
Affected software
Cisco Webex Meetings Desktop App
How to mitigate CVE-2020-3440
Install updates from vendor's website.
Cisco Webex Meetings Desktop App - update to 40.8