CVE-2019-11769 : Exploit Details and Defense Strategies

A vulnerability has been identified in TeamViewer 14.2.2558 that allows a local attacker to intercept administrative credentials and gain elevated privileges.

Understanding CVE-2019-11769

This CVE describes a security issue in TeamViewer version 14.2.2558 that enables attackers to acquire administrative credentials.

What is CVE-2019-11769?

The vulnerability in TeamViewer 14.2.2558 allows a local attacker to intercept administrative credentials processed in Teamviewer.exe, granting them elevated privileges.

The Impact of CVE-2019-11769

The vulnerability enables attackers to acquire administrative credentials, potentially leading to unauthorized access and privilege escalation.

Technical Details of CVE-2019-11769

This section provides detailed technical information about the vulnerability.

Vulnerability Description

When updating TeamViewer as a non-administrative user, entering administrative credentials in the GUI can be intercepted by any application running in the same user context, allowing attackers to gain access.

Affected Systems and Versions

Product: TeamViewer 14.2.2558
Vendor: TeamViewer
Versions: All versions prior to the patched release

Exploitation Mechanism

The vulnerability can be exploited by injecting code into Teamviewer.exe, intercepting calls to GetWindowTextW, and logging the processed credentials.

Mitigation and Prevention

To address CVE-2019-11769, follow these mitigation strategies:

Immediate Steps to Take

Update TeamViewer to the latest patched version.
Avoid entering sensitive information in TeamViewer when using it as a non-administrative user.

Long-Term Security Practices

Implement the principle of least privilege to restrict access rights.
Regularly monitor and audit system logs for any suspicious activities.

Patching and Updates

Stay informed about security updates and patches released by TeamViewer.
Apply patches promptly to ensure protection against known vulnerabilities.