CVE-2019-15286 Explained : Impact and Mitigation

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

Understanding CVE-2019-15286

Multiple vulnerabilities in Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows could allow attackers to execute arbitrary code on affected systems.

What is CVE-2019-15286?

The vulnerabilities in Cisco Webex Network Recording Player and Cisco Webex Player for Microsoft Windows stem from inadequate validation of certain components within Webex recordings stored in ARF or WRF formats. Attackers can exploit these weaknesses by tricking users into opening malicious files, leading to arbitrary code execution.

The Impact of CVE-2019-15286

If successfully exploited, unauthorized individuals can run arbitrary code on compromised systems, gaining the same privileges as the targeted user. The vulnerabilities pose a high risk to confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2019-15286

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

Vulnerability Description

The vulnerabilities allow attackers to execute arbitrary code on affected systems by exploiting insufficient validation of elements in Webex recordings stored in ARF or WRF formats.

Affected Systems and Versions

Product: Cisco WebEx WRF Player
Vendor: Cisco
Versions: Unspecified

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Vector String: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Mitigation and Prevention

Immediate Steps to Take:

Update Cisco Webex Network Recording Player and Cisco Webex Player to the latest versions.
Avoid opening ARF or WRF files from untrusted sources.

Long-Term Security Practices:

Educate users on safe file handling practices.
Implement email and web filtering to block suspicious attachments.

Patching and Updates:

Regularly check for security advisories and updates from Cisco.