CVE-2021-46457 : Vulnerability Insights and Analysis

D-Link device D-Link DIR-823-Pro v1.0.2 has a command injection vulnerability allowing attackers to execute arbitrary commands via the samba_name parameter.

Understanding CVE-2021-46457

What is CVE-2021-46457?

D-Link DIR-823-Pro v1.0.2 has a vulnerability in the ChgSambaUserSettings function, enabling unauthorized command execution through the samba_name parameter.

The Impact of CVE-2021-46457

The vulnerability permits attackers to run arbitrary commands on the affected device, potentially leading to unauthorized system access or data compromise.

Technical Details of CVE-2021-46457

Vulnerability Description

The flaw in D-Link DIR-823-Pro v1.0.2 allows threat actors to execute commands through the samba_name parameter, posing a significant security risk.

Affected Systems and Versions

Product: D-Link DIR-823-Pro
Version: v1.0.2

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the samba_name parameter, leading to the execution of unauthorized commands.

Mitigation and Prevention

Immediate Steps to Take

Update the D-Link DIR-823-Pro firmware to the patched version.
Implement network segmentation to restrict access to vulnerable devices.
Regularly monitor and audit network traffic for suspicious activities.

Long-Term Security Practices

Conduct regular security training for users to recognize and report potential security threats.
Employ intrusion detection systems to identify and respond to malicious activities promptly.

Patching and Updates

Apply security patches from D-Link promptly to address the vulnerability and enhance the device's security.