CVE-2019-1638 : Security Advisory and Response

Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities

Understanding CVE-2019-1638

This CVE involves a security weakness in Cisco Webex Network Recording Player for Microsoft Windows, potentially allowing unauthorized code execution.

What is CVE-2019-1638?

The vulnerability in Cisco Webex Network Recording Player for Windows allows attackers to run unauthorized code by exploiting flaws in ARF and WRF file validation.

The Impact of CVE-2019-1638

Attack Complexity: Low
Attack Vector: Local
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Base Score: 7.8 (High Severity)

Technical Details of CVE-2019-1638

The technical details of this CVE provide insights into the vulnerability and its implications.

Vulnerability Description

The flaw in the software's validation process for ARF and WRF files enables attackers to execute arbitrary code on compromised systems.

Affected Systems and Versions

Product: Cisco WebEx WRF Player
Vendor: Cisco
Affected Version: n/a

Exploitation Mechanism

Attackers can send harmful ARF or WRF files to users, convincing them to open these files using the affected software, thereby gaining the ability to execute arbitrary code.

Mitigation and Prevention

Protecting systems from CVE-2019-1638 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Cisco Webex Network Recording Player to the latest version.
Avoid opening ARF or WRF files from untrusted sources.
Educate users on recognizing phishing attempts.

Long-Term Security Practices

Implement email filtering to block suspicious attachments.
Regularly educate users on cybersecurity best practices.
Conduct security assessments and penetration testing.

Patching and Updates

Regularly check for security updates and patches from Cisco.
Apply patches promptly to mitigate vulnerabilities and enhance system security.