CVE-2021-25774 : Exploit Details and Defense Strategies

In JetBrains TeamCity before 2020.2.1, a user could get access to the GitHub access token of another user.

Understanding CVE-2021-25774

This CVE involves a security vulnerability in JetBrains TeamCity that allowed a user to access the GitHub access token of another user.

What is CVE-2021-25774?

CVE-2021-25774 refers to a specific security flaw in JetBrains TeamCity that could be exploited to gain unauthorized access to another user's GitHub access token.

The Impact of CVE-2021-25774

This vulnerability could potentially lead to unauthorized access to sensitive information stored on the affected user's GitHub account, posing a risk to data confidentiality and integrity.

Technical Details of CVE-2021-25774

The technical details of CVE-2021-25774 include:

Vulnerability Description

The vulnerability in JetBrains TeamCity before 2020.2.1 allowed a user to obtain access to another user's GitHub access token, compromising security.

Affected Systems and Versions

All versions of JetBrains TeamCity prior to 2020.2.1 are affected by this security issue.

Exploitation Mechanism

The vulnerability could be exploited by a malicious user to gain access to sensitive GitHub access tokens of other users within the affected TeamCity environment.

Mitigation and Prevention

To address CVE-2021-25774, consider the following:

Immediate Steps to Take

Users should update JetBrains TeamCity to version 2020.2.1 or newer to mitigate the security risk associated with this vulnerability.

Long-Term Security Practices

Implement robust access control mechanisms and regular security assessments to prevent unauthorized access to sensitive information.

Patching and Updates

Regularly monitor for security patches and updates from JetBrains TeamCity to stay protected against known vulnerabilities.