CVE-2019-12787 : Vulnerability Insights and Analysis

A vulnerability was found in D-Link DIR-818LW devices in the firmware versions 2.05.B03 to 2.06B01 BETA, allowing command injection via an XML injection technique.

Understanding CVE-2019-12787

This CVE identifies a security flaw in D-Link DIR-818LW devices that could be exploited through a specific command injection method.

What is CVE-2019-12787?

The vulnerability in D-Link DIR-818LW devices lies in the HNAP1 SetWanSettings function, where an attacker can perform command injection by manipulating the Gateway key's value using XML injection.

The Impact of CVE-2019-12787

This vulnerability could be exploited by malicious actors to execute arbitrary commands on affected devices, potentially leading to unauthorized access, data theft, or further network compromise.

Technical Details of CVE-2019-12787

The technical aspects of this CVE are crucial for understanding the nature of the vulnerability.

Vulnerability Description

The issue in D-Link DIR-818LW devices from firmware versions 2.05.B03 to 2.06B01 BETA allows attackers to inject commands through XML manipulation of the Gateway key's value within the HNAP1 SetWanSettings function.

Affected Systems and Versions

Product: D-Link DIR-818LW
Versions: 2.05.B03 to 2.06B01 BETA

Exploitation Mechanism

The vulnerability can be exploited through XML injection on the Gateway key's value, enabling attackers to execute unauthorized commands on the affected devices.

Mitigation and Prevention

Protecting systems from CVE-2019-12787 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update the firmware of D-Link DIR-818LW devices 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 and audit network traffic for any suspicious activities.
Educate users and administrators about the risks of command injection attacks and the importance of secure coding practices.

Patching and Updates

Stay informed about security advisories from D-Link and apply patches promptly to mitigate known vulnerabilities.