CVE-2020-3603 : Security Advisory and Response
Learn about CVE-2020-3603 affecting Cisco Webex Network Recording Player for Windows. Find out how attackers can execute arbitrary code and steps to prevent exploitation.
Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerabilities
Understanding CVE-2020-3603
Multiple vulnerabilities in Cisco Webex Network Recording Player for Windows and Cisco Webex Player for Windows could allow an attacker to execute arbitrary code on an affected system.
What is CVE-2020-3603?
The vulnerabilities in Cisco Webex Network Recording Player and Cisco Webex Player for Windows stem from insufficient validation of certain elements in Webex recordings stored in ARF or WRF formats. Attackers can exploit these vulnerabilities by tricking users into opening malicious files.
The Impact of CVE-2020-3603
If successfully exploited, attackers can execute arbitrary code on the affected system with the privileges of the targeted user.
Technical Details of CVE-2020-3603
Vulnerability Description
The vulnerabilities allow attackers to execute arbitrary code on affected systems due to insufficient validation of Webex recording elements.
Affected Systems and Versions
- Product: Cisco Webex Network Recording Player
- Vendor: Cisco
- Versions: n/a
Exploitation Mechanism
Attackers can exploit the vulnerabilities by sending users malicious ARF or WRF files through links or email attachments.
Mitigation and Prevention
Immediate Steps to Take
- Avoid opening ARF or WRF files from untrusted sources
- Update Cisco Webex Network Recording Player and Cisco Webex Player to the latest versions
Long-Term Security Practices
- Educate users on safe file handling practices
- Implement email and web filtering to block suspicious attachments and links
Patching and Updates
Apply patches and updates provided by Cisco to address the vulnerabilities.