CVE-2020-11689 : Exploit Details and Defense Strategies

In JetBrains TeamCity before 2019.2.1, a user without appropriate permissions could import settings from the settings.kts file.

Understanding CVE-2020-11689

This CVE involves a security issue in JetBrains TeamCity that allowed unauthorized users to import settings from a specific file.

What is CVE-2020-11689?

CVE-2020-11689 is a vulnerability in JetBrains TeamCity that enabled users lacking proper permissions to import settings from the settings.kts file.

The Impact of CVE-2020-11689

The vulnerability could potentially lead to unauthorized access and manipulation of settings within JetBrains TeamCity instances.

Technical Details of CVE-2020-11689

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in JetBrains TeamCity before version 2019.2.1 allowed users with insufficient permissions to import settings from the settings.kts file.

Affected Systems and Versions

Product: JetBrains TeamCity
Versions affected: Before 2019.2.1

Exploitation Mechanism

Unauthorized users could exploit this vulnerability by importing settings from the settings.kts file without the necessary permissions.

Mitigation and Prevention

Protecting systems from CVE-2020-11689 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade JetBrains TeamCity to version 2019.2.1 or later to mitigate the vulnerability.
Review and adjust user permissions to prevent unauthorized access.

Long-Term Security Practices

Regularly review and update user permissions to ensure the principle of least privilege.
Conduct security training for users to raise awareness about data security and access control.

Patching and Updates

Ensure timely installation of security patches and updates for JetBrains TeamCity to address known vulnerabilities.