CVE-2020-10879 : Exploit Details and Defense Strategies

rConfig before 3.9.5 allows command injection through a crafted GET request to lib/crud/search.crud.php due to the nodeId parameter being directly passed to the exec function without proper escaping.

Understanding CVE-2020-10879

This CVE involves a vulnerability in rConfig that enables command injection through a specific GET request, potentially leading to unauthorized access and control of the affected system.

What is CVE-2020-10879?

rConfig version before 3.9.5 is susceptible to command injection via a manipulated GET request to lib/crud/search.crud.php, exploiting the lack of proper input validation.

The Impact of CVE-2020-10879

The vulnerability allows attackers to execute arbitrary commands on the system, leading to unauthorized access, data theft, and potential system compromise.

Technical Details of CVE-2020-10879

rConfig before version 3.9.5 is affected by this vulnerability, allowing for command injection through a specific request.

Vulnerability Description

The issue arises from the nodeId parameter not being sanitized before being passed to the exec function, enabling attackers to execute malicious commands.

Affected Systems and Versions

Product: rConfig
Vendor: N/A
Versions Affected: All versions before 3.9.5

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a crafted GET request to the vulnerable endpoint, manipulating the nodeId parameter to execute unauthorized commands.

Mitigation and Prevention

It is crucial to take immediate action to mitigate the risks posed by CVE-2020-10879.

Immediate Steps to Take

Update rConfig to version 3.9.5 or later to patch the vulnerability.
Implement network segmentation to limit the impact of potential attacks.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.
Educate users and administrators about safe computing practices to prevent exploitation.
Implement strict input validation and output encoding to prevent injection attacks.
Consider using web application firewalls to filter and monitor incoming traffic.

Patching and Updates

Ensure that all systems running rConfig are updated to version 3.9.5 or above to eliminate the vulnerability and enhance the overall security posture of the environment.