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CVE-2021-46454 : Exploit Details and Defense Strategies

Learn about the CVE-2021-46454 affecting D-Link DIR-823-Pro v1.0.2 device, enabling arbitrary command execution. Find mitigation steps and security practices to prevent exploitation.

D-Link DIR-823-Pro v1.0.2 device has a command injection vulnerability that allows attackers to execute arbitrary commands.

Understanding CVE-2021-46454

What is CVE-2021-46454?

The D-Link DIR-823-Pro v1.0.2 device was found to have a command injection vulnerability in the SetWLanApcliSettings function, enabling threat actors to run unauthorized commands using the ApCliKeyStr parameter.

The Impact of CVE-2021-46454

This vulnerability can lead to arbitrary command execution by malicious individuals, potentially giving them unauthorized access and control over the affected device.

Technical Details of CVE-2021-46454

Vulnerability Description

The vulnerability in D-Link DIR-823-Pro v1.0.2 allows attackers to execute arbitrary commands, posing a significant security risk.

Affected Systems and Versions

        Affected Systems: D-Link DIR-823-Pro v1.0.2
        Affected Versions: All versions of D-Link DIR-823-Pro v1.0.2

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious commands through the ApCliKeyStr parameter, enabling unauthorized command execution.

Mitigation and Prevention

Immediate Steps to Take

        Implement security patches provided by D-Link to address the vulnerability.
        Restrict network access to the device to trusted sources only.
        Monitor network traffic for any suspicious activity that could indicate exploitation.

Long-Term Security Practices

        Regularly update firmware and software of all network devices to prevent known vulnerabilities.
        Conduct security assessments and penetration testing to proactively identify and address potential security gaps.
        Educate users on best practices for device security and safe network usage.

Patching and Updates

Apply the latest security updates and patches released by D-Link to mitigate the CVE-2021-46454 vulnerability.

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