Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerabilities

Vulnerability

Cisco Webex Network Recording Player for Microsoft Windows and Cisco Webex Player for Microsoft Windows contain multiple vulnerabilities due to improper validation of Advanced Recording Format (ARF) and Webex Recording Format (WRF) files. An attacker can craft a malicious ARF or WRF file that, when opened with the affected software on the local system, triggers an arbitrary code execution condition. The affected versions include all releases prior to the fixed releases mentioned in the Cisco Security Advisory [1].

Exploitation

To exploit these vulnerabilities, an attacker must send a user a malicious ARF or WRF file through a link or email attachment and persuade the user to open the file with the vulnerable Cisco Webex Player or Network Recording Player software on a Windows system. No further user interaction or privileges are required beyond opening the file [1].

Impact

A successful exploit allows the attacker to execute arbitrary code on the affected system with the privileges of the targeted user. This could lead to complete compromise of the user's workstation, including data theft, installation of malware, or further lateral movement within the network [1].

Mitigation

Cisco has released free software updates to address these vulnerabilities. Customers are advised to upgrade to the fixed versions as indicated in the Cisco Security Advisory [1]. No workarounds are available. Customers without service contracts should contact the Cisco TAC for upgrades [1].