An issue was discovered in rConfig through version 3.9.4, where the web interface is vulnerable to SQL injection through the "searchColumn" parameter in "commands.inc.php". This vulnerability could allow attackers to manipulate the database and access sensitive information.

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About rConfig

rConfig is a network device configuration management software that enables network engineers to securely manage, backup, and automate configurations for network devices. The software supports multiple vendor devices and provides a centralized platform to store and track changes in configurations. It offers features such as real-time monitoring, compliance auditing, and customizable automation scripts to streamline network management tasks.

Mitigation

1. Update to the latest version of rConfig, as the issue has been resolved in versions later than 3.9.4.
2. Employ input validation techniques to ensure that only expected data types and formats are submitted through the web interface.
3. Use parameterized queries or prepared statements to create SQL queries, which help prevent SQL injection attacks.
4. Implement a web application firewall (WAF) to detect and block malicious inputs that may exploit SQL injection vulnerabilities.
5. Regularly review and audit your application's code and database queries to identify and remediate potential vulnerabilities.
6. Educate developers and relevant personnel about secure coding practices, particularly in relation to preventing SQL injections.

Exploit Scenario

An attacker can exploit the SQL injection vulnerability in rConfig through 3.9.4 by manipulating the searchColumn parameter in the commands.inc.php file within the web interface. By sending specially crafted input data, the attacker could execute arbitrary SQL commands on the database server, potentially leading to unauthorized access, data exfiltration, or modification of database contents. Proper security controls and input validation measures are necessary to mitigate this risk.

DockerHub Link

To try out a demo environment for CVE-2020-10220, you can visit our DockerHub repository here

Video Tutorial

Video tutorials for exploiting CVE-2020-10220 is available here

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