CVE-2019-7726 Explained : Impact and Mitigation

In versions of NukeViet prior to 4.3.04, the click.php file contains an SQL INSERT statement that includes unprocessed header information obtained from an HTTP request, including the Referer and User-Agent.

Understanding CVE-2019-7726

In this CVE, a vulnerability in NukeViet before version 4.3.04 exposes systems to potential SQL injection attacks due to unprocessed header information in the click.php file.

What is CVE-2019-7726?

This CVE refers to a security flaw in NukeViet versions earlier than 4.3.04, where the click.php file incorporates raw header data from HTTP requests, making it susceptible to SQL injection.

The Impact of CVE-2019-7726

The vulnerability could allow attackers to manipulate the SQL INSERT statement, potentially leading to unauthorized access, data leakage, or data corruption within the affected systems.

Technical Details of CVE-2019-7726

This section delves into the specifics of the vulnerability.

Vulnerability Description

The click.php file in NukeViet before 4.3.04 contains an SQL INSERT statement with unprocessed header data from HTTP requests, such as the Referer and User-Agent.

Affected Systems and Versions

Product: NukeViet
Vendor: N/A
Versions Affected: All versions before 4.3.04

Exploitation Mechanism

By sending crafted HTTP requests with malicious header information, threat actors can inject SQL commands into the vulnerable click.php file, potentially compromising the system.

Mitigation and Prevention

Protecting systems from CVE-2019-7726 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update NukeViet to version 4.3.04 or later to mitigate the vulnerability.
Monitor and analyze incoming HTTP requests for any suspicious activity.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent SQL injection attacks.
Regularly audit and review code to identify and address security vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by NukeViet.
Apply patches promptly to ensure that systems are protected against known vulnerabilities.