CVE-2021-31907 : Vulnerability Insights and Analysis

In JetBrains TeamCity before 2020.2.2, permission checks for changing TeamCity plugins were implemented improperly.

Understanding CVE-2021-31907

This CVE describes an issue in JetBrains TeamCity related to improper implementation of permission checks for changing TeamCity plugins.

What is CVE-2021-31907?

The vulnerability in JetBrains TeamCity allows attackers to manipulate TeamCity plugins due to inadequate permission checks, potentially leading to unauthorized changes or access to sensitive information.

The Impact of CVE-2021-31907

Exploiting this vulnerability could result in unauthorized changes to TeamCity plugins, potentially compromising the integrity and confidentiality of the TeamCity application and its data.

Technical Details of CVE-2021-31907

This section outlines the specific technical details of the CVE.

Vulnerability Description

In JetBrains TeamCity before version 2020.2.2, permission checks for altering TeamCity plugins were not adequately enforced, enabling unauthorized users to modify the plugins.

Affected Systems and Versions

All versions of JetBrains TeamCity prior to 2020.2.2 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by bypassing the inadequate permission checks in JetBrains TeamCity, allowing them to make unauthorized changes to TeamCity plugins.

Mitigation and Prevention

To protect your system from the CVE-2021-31907 vulnerability, it's essential to take the following steps:

Immediate Steps to Take

Update JetBrains TeamCity to version 2020.2.2 or later to address this vulnerability.

Long-Term Security Practices

Regularly monitor for security advisories and updates from JetBrains to stay informed about potential vulnerabilities.
Implement proper access controls and permissions to restrict plugin modifications to authorized personnel only.

Patching and Updates

Apply all security patches and updates provided by JetBrains promptly to mitigate the risk of exploitation through this vulnerability.