CVE-2021-43199 : Exploit Details and Defense Strategies

In JetBrains TeamCity before 2021.1.2, permission checks in the Create Patch functionality are insufficient.

Understanding CVE-2021-43199

In this CVE, JetBrains TeamCity prior to version 2021.1.2 is affected by inadequate permission checks in the Create Patch feature.

What is CVE-2021-43199?

CVE-2021-43199 highlights a security issue in JetBrains TeamCity, where the permission validation within the Create Patch functionality is inadequate, potentially leading to unauthorized access.

The Impact of CVE-2021-43199

The vulnerability can be exploited by malicious actors to perform unauthorized actions within the JetBrains TeamCity platform, compromising data confidentiality and integrity.

Technical Details of CVE-2021-43199

In-depth technical information about the CVE exposure.

Vulnerability Description

The inadequate permission checks in the Create Patch functionality of JetBrains TeamCity prior to 2021.1.2 allow unauthorized users to manipulate patches.

Affected Systems and Versions

Product: JetBrains TeamCity
Version: Before 2021.1.2

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting and applying patches without having the necessary permissions, potentially leading to unauthorized system changes.

Mitigation and Prevention

Effective strategies to mitigate and prevent the exploit corresponding to CVE-2021-43199.

Immediate Steps to Take

Upgrade JetBrains TeamCity to version 2021.1.2 or newer to address the vulnerability.
Implement stricter permission controls within the application to limit unauthorized actions.

Long-Term Security Practices

Regularly review and update permission settings to ensure only authorized users have appropriate access.
Conduct thorough security assessments and audits to identify and remediate any vulnerabilities.

Patching and Updates

Apply security patches and updates provided by JetBrains promptly to enhance system security and protect against known vulnerabilities.