CVE-2021-43806 Explained : Impact and Mitigation
Learn about CVE-2021-43806, a SQL injection vulnerability in Tuleap allowing arbitrary SQL query execution. Find out the impacted versions and effective mitigation strategies.
Tuleap is a Libre and Open Source tool for end-to-end traceability of application and system developments. In affected versions, Tuleap does not properly sanitize user settings when constructing SQL queries for browsing and searching commits in CVS repositories. A malicious user with read access to a CVS repository could execute arbitrary SQL queries. Instances without active CVS repositories are not impacted. The fix is included in Tuleap versions 13.2.99.155, 13.1-7, and 13.2-6.
Understanding CVE-2021-43806
Tuleap's SQL injection vulnerability and its impact.
What is CVE-2021-43806?
CVE-2021-43806 is a SQL injection vulnerability in Tuleap, allowing authenticated malicious users to execute arbitrary SQL queries in affected versions.
The Impact of CVE-2021-43806
This high-severity vulnerability poses risks of data confidentiality, integrity, and availability due to unauthorized SQL query execution by attackers.
Technical Details of CVE-2021-43806
Insights into the vulnerability specifics.
Vulnerability Description
The vulnerability arises from the improper neutralization of special elements used in SQL commands, enabling SQL injection attacks.
Affected Systems and Versions
- Product: Tuleap
- Vendor: Enalean
- Versions:
- < 13.2.99.155
= 13.1-1, < 13.1-7
= 13.2-1, < 13.2-6
Exploitation Mechanism
Attackers with read access to a CVS repository exploit the lack of sanitization in user settings to execute arbitrary SQL queries.
Mitigation and Prevention
Effective steps to mitigate and prevent exploitation.
Immediate Steps to Take
- Upgrade Tuleap to the fixed versions: 13.2.99.155, 13.1-7, or 13.2-6.
- Monitor and review SQL queries for unusual activities.
Long-Term Security Practices
- Implement input validation and sanitization techniques.
- Regularly audit code for vulnerabilities, especially related to SQL injection.
Patching and Updates
- Stay informed about security advisories and apply patches promptly.
- Conduct regular security assessments to identify and address vulnerabilities.