CVE-2023-30802 : Vulnerability Insights and Analysis

A source code disclosure vulnerability has been identified in the Sangfor Next-Gen Application Firewall version NGAF8.0.17. This CVE allows a remote, unauthenticated attacker to retrieve PHP source code by exploiting an HTTP request with an invalid Content-Length field.

Understanding CVE-2023-30802

This section delves into the details of the Sangfor Next-Gen Application Firewall source code disclosure vulnerability.

What is CVE-2023-30802?

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is susceptible to a source code disclosure flaw that enables unauthorized access to PHP source code via a specific HTTP request.

The Impact of CVE-2023-30802

The vulnerability poses a moderate risk, with a CVSS v3.1 base score of 5.3, indicating a medium severity issue. Exploitation could lead to the exposure of sensitive information and potentially compromise the security of affected systems.

Technical Details of CVE-2023-30802

In this section, we explore the technical aspects of the Sangfor Next-Gen Application Firewall source code disclosure vulnerability.

Vulnerability Description

The flaw stems from an insecurity in processing HTTP requests, allowing an attacker to bypass security measures and access PHP source code.

Affected Systems and Versions

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is the only confirmed version impacted by this vulnerability.

Exploitation Mechanism

Attackers can trigger the vulnerability by crafting HTTP requests with a manipulated Content-Length field to extract PHP source code.

Mitigation and Prevention

To safeguard your systems from potential exploits related to CVE-2023-30802, consider the following protective measures.

Immediate Steps to Take

Update: Apply patches or security fixes released by Sangfor to address the source code disclosure vulnerability.
Monitoring: Keep a close eye on network traffic for any suspicious requests that could indicate exploitation attempts.

Long-Term Security Practices

Regular Audits: Conduct routine security audits to identify and mitigate vulnerabilities in your environment.
Access Control: Implement stringent access controls to limit exposure to critical source code.

Patching and Updates

Stay informed about security advisories and updates from Sangfor to promptly address any emerging vulnerabilities.