CVE-2021-44880 : What You Need to Know

D-Link devices DIR_878 DIR_878_FW1.30B08_Hotfix_02 and DIR_882 DIR_882_FW1.30B06_Hotfix_02 have a command injection vulnerability that allows attackers to execute arbitrary commands.

Understanding CVE-2021-44880

This CVE involves a command injection vulnerability in D-Link devices DIR-878 DIR_878_FW1.30B08_Hotfix_02 and DIR_882 DIR_882_FW1.30B06_Hotfix_02, enabling attackers to run unauthorized commands through a crafted HNAP1 POST request.

What is CVE-2021-44880?

The vulnerability discovered in D-Link devices allows threat actors to execute arbitrary commands by exploiting a flaw in the system function.

The Impact of CVE-2021-44880

The vulnerability can lead to unauthorized remote command execution on the affected devices, potentially compromising their security and integrity.

Technical Details of CVE-2021-44880

This section covers specific technical aspects of the vulnerability.

Vulnerability Description

Command injection vulnerability in D-Link devices DIR_878 and DIR_882
Attackers can execute malicious commands through crafted HNAP1 POST requests

Affected Systems and Versions

D-Link devices DIR_878_FW1.30B08_Hotfix_02
D-Link devices DIR_882_FW1.30B06_Hotfix_02
All versions affected

Exploitation Mechanism

Attackers exploit the flaw in the system function by sending specially crafted HNAP1 POST requests

Mitigation and Prevention

In this section, you will find steps to mitigate the vulnerability and enhance the security of affected systems.

Immediate Steps to Take

Apply security patches provided by D-Link promptly
Implement network segmentation to limit exposure
Monitor network traffic for suspicious activities

Long-Term Security Practices

Regularly update firmware and software of D-Link devices
Conduct security assessments and penetration testing
Educate users about cybersecurity best practices
Use intrusion detection/prevention systems

Patching and Updates

Regularly check for firmware updates from D-Link and apply them as soon as they are available