CVE-2021-25776 Explained : Impact and Mitigation

In JetBrains TeamCity before 2020.2, an ECR token could be exposed in a build's parameters.

Understanding CVE-2021-25776

This CVE describes a vulnerability in JetBrains TeamCity that could lead to the exposure of an ECR token within a build's parameters.

What is CVE-2021-25776?

A security issue in JetBrains TeamCity prior to version 2020.2 allows for the inadvertent exposure of an ECR token through a build's parameters.

The Impact of CVE-2021-25776

This vulnerability could potentially result in unauthorized access to sensitive information stored in the exposed ECR token.

Technical Details of CVE-2021-25776

The following technical details outline the specific aspects of this CVE.

Vulnerability Description

The vulnerability in JetBrains TeamCity could expose an ECR token, a critical authentication element, through build parameters, risking unauthorized access.

Affected Systems and Versions

All versions of JetBrains TeamCity before 2020.2 are affected by this security flaw.

Exploitation Mechanism

Attackers with knowledge of this vulnerability could exploit it to access and misuse the exposed ECR token.

Mitigation and Prevention

Protecting your systems against CVE-2021-25776 requires immediate action and long-term security practices.

Immediate Steps to Take

Users should update to JetBrains TeamCity version 2020.2 or later to mitigate the risk of exposing ECR tokens.

Long-Term Security Practices

Incorporate regular security updates and audits within your software development workflow to prevent similar vulnerabilities.

Patching and Updates

Regularly check for patches and updates from JetBrains TeamCity to address security vulnerabilities, including those related to ECR token exposure.