CVE-2023-30805 : What You Need to Know

Sangfor Next-Gen Application Firewall Login Un Param Command Injection vulnerability allows a remote attacker to execute arbitrary commands via a crafted HTTP POST request.

Understanding CVE-2023-30805

This CVE identifies a critical vulnerability in Sangfor Next-Gen Application Firewall version NGAF8.0.17, leading to an operating system command injection.

What is CVE-2023-30805?

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an operating system command injection flaw. Attackers can exploit this by sending a malicious HTTP POST request to the /LogInOut.php endpoint.

The Impact of CVE-2023-30805

The impact of this vulnerability is severe, with a CVSS v3.1 base score of 9.8 (Critical). An unauthenticated attacker can execute arbitrary commands, compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2023-30805

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw in Sangfor NGAF version 8.0.17 allows remote and unauthenticated attackers to execute arbitrary commands through the mishandling of shell meta-characters in the "un" parameter of an HTTP POST request.

Affected Systems and Versions

The vulnerability affects Sangfor Next-Gen Application Firewall version NGAF8.0.17.

Exploitation Mechanism

By sending a crafted HTTP POST request to the /LogInOut.php endpoint, attackers can exploit the mishandling of shell meta-characters in the "un" parameter to execute arbitrary commands.

Mitigation and Prevention

Protecting systems from CVE-2023-30805 requires immediate action and long-term security practices.

Immediate Steps to Take

Update the Sangfor Next-Gen Application Firewall to a non-vulnerable version.
Implement network-based controls to restrict access to vulnerable endpoints.

Long-Term Security Practices

Regularly monitor vendor security advisories for patches and updates.
Conduct security training to educate users on identifying and preventing command injection attacks.

Patching and Updates

Ensure timely deployment of security patches provided by Sangfor to address the command injection vulnerability in the NGAF version 8.0.17.