CVE-2021-46452 : Vulnerability Insights and Analysis

D-Link device D-Link DIR-823-Pro v1.0.2 contains a command injection vulnerability in the SetNetworkTomographySettings function, allowing attackers to execute arbitrary commands.

Understanding CVE-2021-46452

What is CVE-2021-46452?

D-Link DIR-823-Pro v1.0.2 has a vulnerability that permits attackers to run arbitrary commands using specific parameters.

The Impact of CVE-2021-46452

This vulnerability can be exploited by malicious actors to execute unauthorized commands on the affected device, potentially leading to system compromise.

Technical Details of CVE-2021-46452

Vulnerability Description

The vulnerability exists in the SetNetworkTomographySettings function, enabling attackers to execute arbitrary commands through specific parameters.

Affected Systems and Versions

Product: D-Link DIR-823-Pro v1.0.2
Vendor: D-Link
Versions: All

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the tomography_ping_address, tomography_ping_number, tomography_ping_size, tomography_ping_timeout, and tomography_ping_ttl parameters.

Mitigation and Prevention

Immediate Steps to Take

Update the firmware to the latest version provided by D-Link.
Implement network segmentation and access controls to limit exposure.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Conduct security training for users to recognize and report potential security threats.
Employ intrusion detection systems to identify and mitigate malicious behavior.

Patching and Updates

Apply security patches and updates promptly to fix the vulnerability and enhance overall device security.