CVE-2020-25368 : Security Advisory and Response

A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker can execute arbitrary web scripts via shell metacharacters in the PrivateLogin field to Login.

Understanding CVE-2020-25368

This CVE involves a command injection vulnerability in specific D-Link DIR-823G devices.

What is CVE-2020-25368?

CVE-2020-25368 is a security vulnerability found in D-Link DIR-823G devices that allows attackers to run arbitrary web scripts by exploiting the HNAP1 protocol.

The Impact of CVE-2020-25368

The vulnerability enables attackers to execute unauthorized commands on affected devices, potentially leading to unauthorized access and control.

Technical Details of CVE-2020-25368

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability exists in the HNAP1 protocol of D-Link DIR-823G devices with firmware V1.0.2B05, allowing attackers to inject and execute malicious commands through shell metacharacters in the PrivateLogin field.

Affected Systems and Versions

Device: D-Link DIR-823G
Firmware Version: V1.0.2B05

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting shell metacharacters in the PrivateLogin field during the login process, enabling the execution of unauthorized commands.

Mitigation and Prevention

Protecting systems from CVE-2020-25368 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware of D-Link DIR-823G devices to the latest version that includes a patch for this vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation attempts.

Long-Term Security Practices

Implement network segmentation to isolate critical devices from potentially compromised systems.
Regularly audit and review device configurations to ensure security best practices are followed.

Patching and Updates

Regularly check for firmware updates and security advisories from D-Link to apply patches promptly and mitigate known vulnerabilities.