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

Vulnerability

Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows are affected by 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 processed by the affected software, triggers arbitrary code execution. The vulnerabilities exist in versions prior to the fixed releases provided in the Cisco security advisory [1].

Exploitation

An attacker can exploit these vulnerabilities by sending a user a malicious ARF or WRF file via a link or email attachment and persuading the user to open the file with the affected software on the local system. No additional authentication or network access is required beyond the user's interaction. The attacker does not need any special privileges on the target system.

Impact

Successful exploitation allows the attacker to execute arbitrary code on the affected system with the privileges of the targeted user. This could lead to full compromise of the user's session, including data theft, installation of malware, or further lateral movement within the network.

Mitigation

Cisco has released free software updates to address these vulnerabilities. Customers should upgrade to the fixed versions as indicated in the Cisco Security Advisory [1]. No workarounds are mentioned in the available references. Users should ensure they are running the latest version of Cisco Webex Network Recording Player and Cisco Webex Player.