CVE-2021-28152 : Vulnerability Insights and Analysis

A detailed look into the CVE-2021-28152 vulnerability affecting Hongdian H8922 3.0.5 devices, allowing unauthorized access as a superuser through telnet with default credentials.

Understanding CVE-2021-28152

This section provides an overview of the vulnerability and its impact on affected systems.

What is CVE-2021-28152?

Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser using telnet service on port 5188 with default credentials.

The Impact of CVE-2021-28152

The vulnerability enables unauthorized users to gain superuser access, posing a significant security risk to the affected devices.

Technical Details of CVE-2021-28152

Explore the specifics of the vulnerability including affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability in Hongdian H8922 3.0.5 devices allows unauthorized users to access a superuser shell via telnet using default credentials.

Affected Systems and Versions

All Hongdian H8922 devices running version 3.0.5 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by connecting to the telnet service on port 5188 with the default credentials of root:superzxmn.

Mitigation and Prevention

Discover actionable steps to mitigate the risks associated with CVE-2021-28152.

Immediate Steps to Take

Disable telnet service on port 5188 and change the default credentials to prevent unauthorized access to the device.

Long-Term Security Practices

Implement strong authentication mechanisms, conduct regular security audits, and apply relevant security patches to enhance device security.

Patching and Updates

Keep the devices up to date with the latest firmware and security patches provided by the vendor to address the vulnerability.