Cisco Bug: CSCvt80020 - Cisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite Vulnerability
Sep 17, 2020
- Cisco Webex Meetings Online
Known Affected Releases
Symptom: A vulnerability in Cisco Webex Meetings Desktop App for Windows could allow an unauthenticated, remote attacker to overwrite arbitrary files on an end-user system. The vulnerability is due to improper validation of URL parameters that are sent from a website to the affected application. An attacker could exploit this vulnerability by persuading a user to follow a URL to a website that is designed to submit crafted input to the affected application. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system, possibly corrupting or deleting critical system files. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-desktop-app-OVSfpVMj Conditions: At the time of publication, this vulnerability affected Cisco Webex Meetings Desktop App for Windows releases earlier than Release 40.8.
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