CVE-2022-24335 : What You Need to Know

JetBrains TeamCity before 2021.2 contained a vulnerability that made it susceptible to a Time-of-check/Time-of-use (TOCTOU) race-condition attack during agent registration via XML-RPC.

Understanding CVE-2022-24335

This section delves into the details surrounding CVE-2022-24335, its impact, technical aspects, and mitigation strategies.

What is CVE-2022-24335?

CVE-2022-24335 relates to a TOCTOU race-condition vulnerability discovered in JetBrains TeamCity before version 2021.2. The flaw specifically occurs during the agent registration process via XML-RPC.

The Impact of CVE-2022-24335

The vulnerability could be exploited by threat actors to carry out TOCTOU attacks, potentially leading to unauthorized access or manipulation of sensitive information within vulnerable TeamCity instances.

Technical Details of CVE-2022-24335

Explore the specific technical aspects of CVE-2022-24335, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The TOCTOU race-condition vulnerability in JetBrains TeamCity before 2021.2 allows malicious actors to manipulate the agent registration process via XML-RPC, potentially leading to unauthorized access or data manipulation.

Affected Systems and Versions

All versions of JetBrains TeamCity prior to 2021.2 are affected by CVE-2022-24335.

Exploitation Mechanism

Attackers can exploit this vulnerability by timing their actions between the 'check' and 'use' of a resource, enabling them to register rogue agents or execute unauthorized commands in TeamCity environments.

Mitigation and Prevention

Learn about the immediate steps to take, long-term security practices, and the importance of timely patching and updates.

Immediate Steps to Take

Upgrade JetBrains TeamCity to version 2021.2 or later to mitigate the TOCTOU vulnerability.
Monitor system logs for any suspicious activities or unauthorized agent registration attempts.

Long-Term Security Practices

Implement stringent access controls and authentication mechanisms to prevent unauthorized access to TeamCity instances.
Conduct regular security audits and penetration testing to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates released by JetBrains to address known vulnerabilities promptly.
Keep TeamCity and associated systems up to date with the latest security patches and configurations to enhance overall security posture.