CVE-2019-12843 : Security Advisory and Response

This CVE involves a stored JavaScript injection issue that required deliberate server administrator action, affecting JetBrains TeamCity 2018.2.3.

Understanding CVE-2019-12843

This CVE identifies a potential instance of deliberate server administrator action involving stored JavaScript injection, which has been resolved in JetBrains TeamCity 2018.2.3.

What is CVE-2019-12843?

A possible stored JavaScript injection requiring a deliberate server administrator action was detected, and the issue was fixed in JetBrains TeamCity 2018.2.3.

The Impact of CVE-2019-12843

The vulnerability could potentially allow malicious actors to execute arbitrary code on affected systems, leading to unauthorized access and data compromise.

Technical Details of CVE-2019-12843

Vulnerability Description

The detection identified a potential instance of deliberate server administrator action involving stored JavaScript injection, which has been resolved in JetBrains TeamCity 2018.2.3.

Affected Systems and Versions

Product: JetBrains TeamCity
Version: 2018.2.3

Exploitation Mechanism

The vulnerability could be exploited by malicious actors through deliberate server administrator actions to inject malicious JavaScript code.

Mitigation and Prevention

Immediate Steps to Take

Update JetBrains TeamCity to version 2018.2.3 or later to mitigate the vulnerability.
Monitor for any unusual activities on the server that could indicate exploitation attempts.

Long-Term Security Practices

Regularly review and update security configurations to prevent similar injection attacks.
Educate server administrators on best practices for secure server management.

Patching and Updates

Ensure timely installation of security patches and updates for JetBrains TeamCity to address known vulnerabilities.