CVE-2019-1939 : Exploit Details and Defense Strategies
Learn about CVE-2019-1939, a vulnerability in Cisco Webex Teams client for Windows allowing remote attackers to execute arbitrary commands. Find mitigation steps and patching details here.
A weakness in the Windows version of Cisco Webex Teams client allows remote attackers to run unrestricted commands on compromised systems.
Understanding CVE-2019-1939
What is CVE-2019-1939?
The vulnerability in Cisco Webex Teams client for Windows enables attackers to execute arbitrary commands on affected systems.
The Impact of CVE-2019-1939
The vulnerability could lead to unauthorized remote command execution with high impact on confidentiality, integrity, and availability.
Technical Details of CVE-2019-1939
Vulnerability Description
The weakness arises from inadequate limitations on logging functions, allowing attackers to manipulate files and execute commands.
Affected Systems and Versions
- Product: Cisco Webex Teams
- Vendor: Cisco
- Versions Affected: < 3.0.12427.0
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Exploitation involves persuading a user to access a malicious website to send input to the application.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor patches promptly
- Educate users on safe browsing practices
- Monitor network traffic for suspicious activity
Long-Term Security Practices
- Regularly update and patch software
- Implement network segmentation and access controls
- Conduct security awareness training for employees
Patching and Updates
- Cisco has released patches to address the vulnerability
- Ensure all affected systems are updated with the latest security fixes