CVE-2019-13128 : Security Advisory and Response

A vulnerability has been identified in D-Link DIR-823G devices running firmware version 1.02B03, involving a command injection in HNAP1.

Understanding CVE-2019-13128

This CVE pertains to a specific vulnerability in D-Link DIR-823G devices that can be exploited with proper authentication.

What is CVE-2019-13128?

The vulnerability in CVE-2019-13128 allows for command injection in HNAP1 when shell metacharacters are introduced in the IPAddress or Gateway field while setting static route settings.

The Impact of CVE-2019-13128

This vulnerability can be exploited by attackers to execute arbitrary commands on affected devices, potentially leading to unauthorized access or control.

Technical Details of CVE-2019-13128

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability involves a command injection in HNAP1, which can be triggered by inserting shell metacharacters in specific fields.

Affected Systems and Versions

Affected Device: D-Link DIR-823G
Firmware Version: 1.02B03

Exploitation Mechanism

The vulnerability can be exploited by authenticated attackers inserting shell metacharacters in the IPAddress or Gateway field during static route settings configuration.

Mitigation and Prevention

Protecting systems from CVE-2019-13128 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware of D-Link DIR-823G devices to a patched version that addresses the vulnerability.
Implement strong authentication mechanisms to prevent unauthorized access.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Educate users on safe configuration practices to prevent similar vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates provided by D-Link to mitigate the CVE-2019-13128 vulnerability.