CVE-2021-43193 : Security Advisory and Response

In JetBrains TeamCity before 2021.1.2, remote code execution via the agent push functionality is possible.

Understanding CVE-2021-43193

In this CVE, JetBrains TeamCity before version 2021.1.2 is vulnerable to remote code execution through the agent push feature.

What is CVE-2021-43193?

CVE-2021-43193 relates to a security issue in JetBrains TeamCity that allows an attacker to execute remote code by exploiting the agent push functionality.

The Impact of CVE-2021-43193

The vulnerability can lead to unauthorized execution of arbitrary code on the affected system, potentially resulting in data breaches, system compromise, and other security risks.

Technical Details of CVE-2021-43193

This section provides more in-depth technical details of the CVE.

Vulnerability Description

The vulnerability in JetBrains TeamCity before 2021.1.2 allows threat actors to achieve remote code execution by leveraging the agent push feature.

Affected Systems and Versions

Affected Product: JetBrains TeamCity
Vulnerable Versions: Versions before 2021.1.2

Exploitation Mechanism

The exploit occurs through the agent push functionality in JetBrains TeamCity, enabling attackers to execute malicious code remotely.

Mitigation and Prevention

Below are the recommended steps to address and prevent exploitation of CVE-2021-43193.

Immediate Steps to Take

Update JetBrains TeamCity to version 2021.1.2 or later to mitigate the vulnerability.
Monitor and restrict network access to critical systems to limit attack vectors.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and address vulnerabilities promptly.
Educate users on safe computing practices and the importance of applying software updates promptly.

Patching and Updates

Apply security patches and updates provided by JetBrains to ensure that the software is protected against known vulnerabilities.