CVE-2021-41154 : Exploit Details and Defense Strategies

Tuleap is an open-source suite designed for software development and collaboration. In certain versions, an attacker with read access to an 'SVN core' repository can execute arbitrary SQL queries.

Understanding CVE-2021-41154

What is CVE-2021-41154?

CVE-2021-41154 highlights a SQL injection vulnerability in the 'SVN core' commits browser of Tuleap, enabling attackers to run SQL queries.

The Impact of CVE-2021-41154

The vulnerability has a CVSS base score of 8.8 (High severity), with low attack complexity and requires low privileges. It can lead to high confidentiality, integrity, and availability impact.

Technical Details of CVE-2021-41154

Vulnerability Description

The issue allows unauthorized SQL query execution via 'SVN core' in Tuleap.

Affected Systems and Versions

Tuleap versions prior to 11.17.99.144, 11.17-5, and 11.16-7 are affected.

Exploitation Mechanism

Attackers need read access to the 'SVN core' repository to exploit the SQL injection.

Mitigation and Prevention

Immediate Steps to Take

Update Tuleap to the fixed versions: 11.17.99.144, 11.17-5, or 11.16-7.
Monitor and restrict access to 'SVN core' repositories.
Regularly review and sanitize user inputs to prevent SQL injection.

Long-Term Security Practices

Implement secure coding practices to prevent SQL injection vulnerabilities.
Conduct regular security assessments to identify and remediate similar issues.
Educate developers and users on SQL injection risks.

Patching and Updates

Apply security patches promptly to Tuleap to address known vulnerabilities.