CVE-2021-28151 Explained : Impact and Mitigation

A detailed analysis of CVE-2021-28151, a vulnerability found in Hongdian H8922 3.0.5 devices allowing OS command injection. Learn about the impact, technical details, and mitigation strategies.

Understanding CVE-2021-28151

This section provides insights into the nature of the CVE-2021-28151 vulnerability in Hongdian H8922 3.0.5 devices.

What is CVE-2021-28151?

CVE-2021-28151 involves OS command injection via shell metacharacters into the ip-address field in the tools.cgi ping command of the affected devices.

The Impact of CVE-2021-28151

The vulnerability allows unauthorized users to execute arbitrary commands through the ping command, compromising the security of the devices.

Technical Details of CVE-2021-28151

Explore the specific technical aspects of CVE-2021-28151 to understand how the vulnerability operates.

Vulnerability Description

Hongdian H8922 3.0.5 devices are susceptible to OS command injection by exploiting shell metacharacters in the ip-address field.

Affected Systems and Versions

The vulnerability affects Hongdian H8922 3.0.5 devices. Other versions may also be impacted.

Exploitation Mechanism

By inserting malicious shell metacharacters into the ip-address field of the tools.cgi ping command, attackers can run unauthorized commands.

Mitigation and Prevention

Discover the essential steps to mitigate the risks associated with CVE-2021-28151 and prevent future security breaches.

Immediate Steps to Take

Users should restrict access to the affected devices, change default credentials, and monitor network activities for suspicious behavior.

Long-Term Security Practices

Implement regular security audits, apply security patches promptly, and educate users on safe cybersecurity practices.

Patching and Updates

Vendor-supplied patches should be applied as soon as they are released to address the vulnerability and enhance the security of Hongdian H8922 3.0.5 devices.