CVE-2021-20160 : What You Need to Know

This article provides details about CVE-2021-20160, a command injection vulnerability found in Trendnet AC2600 TEW-827DRU version 2.08B01. Learn about the impact, technical details, and mitigation steps to address this security issue.

Understanding CVE-2021-20160

CVE-2021-20160 is a command injection vulnerability identified in Trendnet AC2600 TEW-827DRU version 2.08B01, specifically within the smb functionality, making the device susceptible to unauthorized command execution.

What is CVE-2021-20160?

The CVE-2021-20160 vulnerability exists in the username parameter used to configure the smb functionality on the device, allowing malicious actors to inject and execute commands with root privileges.

The Impact of CVE-2021-20160

Exploitation of this vulnerability could lead to unauthorized access, data theft, or even complete compromise of the affected device, posing a significant security risk to users and their data.

Technical Details of CVE-2021-20160

The following technical aspects are associated with CVE-2021-20160:

Vulnerability Description

Trendnet AC2600 TEW-827DRU version 2.08B01 is affected by a command injection flaw in the smb functionality, enabling threat actors to execute arbitrary commands as root.

Affected Systems and Versions

The specific version impacted by this vulnerability is 2.08B01 of the Trendnet AC2600 TEW-827DRU device.

Exploitation Mechanism

By exploiting the vulnerable username parameter in smb configuration, attackers can inject malicious commands to gain unauthorized access and control over the device.

Mitigation and Prevention

To address CVE-2021-20160, users and administrators should take immediate and long-term security measures to safeguard their systems:

Immediate Steps to Take

Disable smb functionality if not essential
Implement network segmentation to limit exposure

Long-Term Security Practices

Regularly update device firmware and software
Use strong, unique passwords for device access
Monitor network traffic for suspicious activities

Patching and Updates

Check for patches or updates provided by Trendnet to address the vulnerability. Apply patches promptly to mitigate the risk of exploitation and enhance the security of the affected device.