CVE-2019-16001 Explained : Impact and Mitigation

A weakness has been discovered in the loading mechanism of certain dynamic link libraries in Cisco Webex Teams for Windows, potentially allowing a local attacker to carry out a DLL hijacking attack.

Understanding CVE-2019-16001

What is CVE-2019-16001?

This vulnerability in Cisco Webex Teams for Windows arises from inadequate validation of resources loaded by the application during runtime, enabling a local attacker with valid credentials to execute a DLL hijacking attack.

The Impact of CVE-2019-16001

The vulnerability could lead to unauthorized code execution on the compromised machine using the privileges of another user account.

Technical Details of CVE-2019-16001

Vulnerability Description

The vulnerability allows an attacker to create a customized DLL file and position it in a specific location on the targeted system, which will be executed upon launching the vulnerable application.

Affected Systems and Versions

Product: Cisco Webex Teams
Vendor: Cisco
Versions: Unspecified

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security patches provided by Cisco.
Monitor Cisco's security advisories for updates and follow recommended actions.

Long-Term Security Practices

Implement the principle of least privilege to restrict access rights for users.
Regularly review and update security configurations to mitigate similar vulnerabilities.

Patching and Updates

Regularly check for security updates and apply patches promptly to address known vulnerabilities.