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CVE-2021-31910 : What You Need to Know

Discover how CVE-2021-31910 impacts JetBrains TeamCity before 2020.2.3, allowing SSRF attacks for unauthorized information disclosure. Learn mitigation steps and best practices for enhanced security.

In JetBrains TeamCity before 2020.2.3, a vulnerability existed that could lead to information disclosure via Server-Side Request Forgery (SSRF). Here's what you need to know about CVE-2021-31910 and how to address it.

Understanding CVE-2021-31910

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2021-31910?

CVE-2021-31910 is a security vulnerability found in JetBrains TeamCity before version 2020.2.3. It allows attackers to disclose information through Server-Side Request Forgery (SSRF).

The Impact of CVE-2021-31910

The SSRF vulnerability in JetBrains TeamCity could potentially lead to unauthorized access to sensitive information and data leakage, compromising the confidentiality and integrity of the system.

Technical Details of CVE-2021-31910

Explore the technical aspects of the CVE-2021-31910 vulnerability in this section.

Vulnerability Description

The vulnerability in JetBrains TeamCity before 2020.2.3 enables attackers to exploit SSRF, resulting in unauthorized information disclosure.

Affected Systems and Versions

All versions of JetBrains TeamCity prior to 2020.2.3 are affected by CVE-2021-31910, making them vulnerable to SSRF attacks.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted requests to TeamCity's server, tricking it into disclosing sensitive information via SSRF attacks.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-31910 and prevent future security incidents.

Immediate Steps to Take

        Users are advised to update JetBrains TeamCity to version 2020.2.3 or later to address the vulnerability effectively.
        Implement network controls and filters to restrict unauthorized access to the TeamCity server.

Long-Term Security Practices

        Regularly monitor and audit server logs for any suspicious activities indicating SSRF exploitation.
        Educate system administrators and users about SSRF attacks and security best practices.

Patching and Updates

Stay informed about security patches and updates released by JetBrains for TeamCity. Timely installation of patches can help in closing known vulnerabilities and enhancing system security.

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