CVE-2021-43283 : Security Advisory and Response

An issue was discovered on Victure WR1200 devices through 1.0.3. A command injection vulnerability was found within the web interface of the device, allowing an attacker with valid credentials to inject arbitrary shell commands to be executed by the device with root privileges. This occurs in the ping and traceroute features. An attacker would thus be able to use this vulnerability to open a reverse shell on the device with root privileges.

Understanding CVE-2021-43283

This CVE involves a command injection vulnerability in Victure WR1200 devices that could lead to arbitrary shell command execution with root privileges.

What is CVE-2021-43283?

The CVE-2021-43283 vulnerability involves the ability of an attacker with valid credentials to inject arbitrary shell commands into the device's web interface, potentially gaining root access.

The Impact of CVE-2021-43283

The vulnerability allows an attacker to execute commands with root privileges, potentially leading to complete control over the device.

Technical Details of CVE-2021-43283

This section covers the technical aspects related to CVE-2021-43283.

Vulnerability Description

The vulnerability allows for unauthorized command injection through the web interface of Victure WR1200 devices, enabling attackers to execute shell commands with root privileges.

Affected Systems and Versions

Affected system: Victure WR1200 devices through version 1.0.3

Exploitation Mechanism

The vulnerability can be exploited by an attacker with valid credentials, using the ping and traceroute features to inject malicious shell commands.

Mitigation and Prevention

Following are the steps to mitigate and prevent exploitation of CVE-2021-43283.

Immediate Steps to Take

Update the device firmware to the latest version if available
Implement strong, unique passwords for device access
Monitor network traffic for any suspicious activities

Long-Term Security Practices

Regularly check for security updates and patches for the device
Conduct security audits and assessments periodically

Patching and Updates

Apply security patches provided by the device manufacturer