CVE-2020-11688 : Security Advisory and Response

In JetBrains TeamCity before 2019.2.1, the application state is kept alive after a user ends his session.

Understanding CVE-2020-11688

In this CVE, JetBrains TeamCity before version 2019.2.1 is affected by a vulnerability that allows the application state to persist even after a user logs out.

What is CVE-2020-11688?

The vulnerability in JetBrains TeamCity allows the application state to remain active post user logout, potentially leading to unauthorized access or misuse of the application.

The Impact of CVE-2020-11688

The persistence of the application state after a user session ends can result in security risks such as unauthorized access to sensitive information or misuse of the application's functionalities.

Technical Details of CVE-2020-11688

Vulnerability Description

The vulnerability in JetBrains TeamCity before 2019.2.1 allows the application state to remain active even after a user logs out, posing a security risk.

Affected Systems and Versions

Product: JetBrains TeamCity
Vendor: JetBrains
Versions affected: All versions before 2019.2.1

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to gain unauthorized access to the application or misuse its functionalities due to the persistence of the application state.

Mitigation and Prevention

Immediate Steps to Take

Users should update JetBrains TeamCity to version 2019.2.1 or later to mitigate the vulnerability.
Implement session management best practices to ensure proper termination of user sessions.

Long-Term Security Practices

Regularly monitor and audit user sessions to detect any anomalies or unauthorized access.
Educate users on secure logout procedures to prevent unauthorized access.

Patching and Updates

Ensure timely installation of software updates and patches provided by JetBrains to address security vulnerabilities.