CVE-2019-1636 Explained : Impact and Mitigation
Discover the security flaw in Cisco Webex Teams (formerly Cisco Spark) allowing unauthorized commands execution. Learn about the impact, affected systems, and mitigation steps.
A security flaw in Cisco Webex Teams (formerly Cisco Spark) allows unauthorized commands execution on a system through malicious links.
Understanding CVE-2019-1636
What is CVE-2019-1636?
This vulnerability in Cisco Webex Teams enables attackers to run unauthorized commands on a system by exploiting unsafe search paths in the application URI on Windows OS.
The Impact of CVE-2019-1636
The vulnerability has a CVSS base score of 7.8 (High severity) with significant impacts on confidentiality, integrity, and availability of the system.
Technical Details of CVE-2019-1636
Vulnerability Description
The flaw arises from unsafe search paths in the application URI, allowing attackers to load libraries from specified directories and execute unauthorized commands.
Affected Systems and Versions
- Product: Cisco Webex Teams
- Vendor: Cisco
- Affected Version: Not Applicable
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Exploitation involves persuading users to click on malicious links to execute unauthorized commands.
Mitigation and Prevention
Immediate Steps to Take
- Update Cisco Webex Teams to the latest version.
- Avoid clicking on suspicious or unverified links.
Long-Term Security Practices
- Educate users on safe browsing practices.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Regularly apply security patches and updates provided by Cisco to address known vulnerabilities.