CVE-2022-39986 Explained : Impact and Mitigation

A Command injection vulnerability in RaspAP 2.8.0 thru 2.8.7 allows unauthenticated attackers to execute arbitrary commands via the cfg_id parameter in /ajax/openvpn/activate_ovpncfg.php and /ajax/openvpn/del_ovpncfg.php.

Understanding CVE-2022-39986

This section provides detailed insights into the CVE-2022-39986 vulnerability.

What is CVE-2022-39986?

The CVE-2022-39986 is a Command injection vulnerability affecting RaspAP versions 2.8.0 through 2.8.7. It enables unauthenticated attackers to run arbitrary commands by exploiting the cfg_id parameter in specific URLs.

The Impact of CVE-2022-39986

The impact of this vulnerability is severe as it allows attackers to execute unauthorized commands on the affected systems, potentially leading to unauthorized access or system compromise.

Technical Details of CVE-2022-39986

This section delves into the technical aspects of CVE-2022-39986.

Vulnerability Description

The vulnerability stems from improper input validation in RaspAP versions 2.8.0 to 2.8.7, enabling attackers to inject malicious commands through the cfg_id parameter in certain URL paths.

Affected Systems and Versions

RaspAP versions 2.8.0 through 2.8.7 are confirmed to be impacted by this vulnerability, exposing systems with these versions to exploitation.

Exploitation Mechanism

By manipulating the cfg_id parameter in /ajax/openvpn/activate_ovpncfg.php and /ajax/openvpn/del_ovpncfg.php URLs, unauthenticated threat actors can inject and execute malicious commands on the targeted system.

Mitigation and Prevention

This section outlines the mitigation strategies and best practices to prevent exploitation of CVE-2022-39986.

Immediate Steps to Take

Update RaspAP to a patched version that addresses the command injection vulnerability.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly monitor for security updates and apply patches promptly.
Conduct security audits and penetration testing to identify and remedy vulnerabilities proactively.

Patching and Updates

It is crucial to apply the latest patches released by RaspAP to mitigate the CVE-2022-39986 vulnerability and enhance the security posture of the affected systems.