CVE-2021-29004 : Exploit Details and Defense Strategies

rConfig 3.9.6 is affected by SQL Injection, requiring user authentication for exploitation. If --secure-file-priv is not set in the MySQL server, and the server is the same as rConfig, an attacker could upload a webshell to the server.

Understanding CVE-2021-29004

This section provides insights into the impact, technical details, and mitigation steps related to CVE-2021-29004.

What is CVE-2021-29004?

rConfig 3.9.6 is vulnerable to SQL Injection, allowing authenticated users to exploit the flaw. An attacker could upload a webshell to the server if certain conditions are met.

The Impact of CVE-2021-29004

The vulnerability in rConfig 3.9.6 could enable remote attackers to upload a webshell and subsequently access it on the server if --secure-file-priv is not properly configured in the MySQL server.

Technical Details of CVE-2021-29004

Below are the specific technical aspects of the CVE.

Vulnerability Description

rConfig 3.9.6 is susceptible to SQL Injection, which could potentially lead to the upload and remote access of a webshell by authenticated users.

Affected Systems and Versions

The affected system is rConfig 3.9.6, and the specific version details for exploitation are not applicable.

Exploitation Mechanism

Exploiting this vulnerability requires an authenticated user to upload a webshell if --secure-file-priv is not configured correctly in the associated MySQL server.

Mitigation and Prevention

To safeguard your system from CVE-2021-29004, consider implementing the following security measures.

Immediate Steps to Take

Ensure MySQL server configurations, especially --secure-file-priv, are properly set to prevent unauthorized file uploads.
Regularly monitor for any suspicious activities or unauthorized access attempts.

Long-Term Security Practices

Educate users on secure coding practices to prevent SQL Injection vulnerabilities.
Conduct regular security audits and penetration testing to identify and patch vulnerabilities promptly.

Patching and Updates

Stay up to date with security patches released by rConfig to address CVE-2021-29004 and other potential security risks.