CVE-2019-1927 : Vulnerability Insights and Analysis

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

Understanding CVE-2019-1927

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-2019-1927?

The vulnerabilities in Cisco Webex Network Recording Player and Cisco Webex Player stem from improper validation of Advanced Recording Format (ARF) and Webex Recording Format (WRF) files, enabling attackers to execute arbitrary code on affected systems.

The Impact of CVE-2019-1927

If successfully exploited, attackers could execute arbitrary code on affected systems, utilizing the privileges of the targeted user. The vulnerabilities have a CVSS base score of 7.8, indicating a high severity level.

Technical Details of CVE-2019-1927

Vulnerability Description

The vulnerabilities in Cisco Webex Network Recording Player and Cisco Webex Player allow attackers to execute arbitrary code due to improper validation of ARF and WRF files.

Affected Systems and Versions

Product: Cisco WebEx WRF Player
Vendor: Cisco
Versions Affected: < 39.5.5

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Exploitation requires convincing users to open malicious ARF or WRF files sent via links or email attachments.

Mitigation and Prevention

Immediate Steps to Take

Update affected software to versions above 39.5.5 to mitigate the vulnerabilities.
Exercise caution when opening files from unknown or untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Educate users on safe browsing practices and awareness of social engineering tactics.

Patching and Updates

Refer to the vendor's security advisory for patch availability and installation instructions.