CVE-2022-27003 : Security Advisory and Response

Totolink routers s X5000R V9.1.0u.6118_B20201102 and A7000R V9.1.0u.6115_B20201022 were discovered to contain a command injection vulnerability in the Tunnel 6rd function via the relay6rd parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Understanding CVE-2022-27003

This CVE identifies a command injection vulnerability in Totolink routers that can be exploited by attackers to run unauthorized commands.

What is CVE-2022-27003?

CVE-2022-27003 is a security flaw found in Totolink routers X5000R V9.1.0u.6118_B20201102 and A7000R V9.1.0u.6115_B20201022, enabling attackers to execute malicious commands using the Tunnel 6rd feature.

The Impact of CVE-2022-27003

This vulnerability poses a significant risk as it allows threat actors to gain unauthorized access to affected routers and execute commands of their choice, potentially leading to further compromise of the network.

Technical Details of CVE-2022-27003

The following details outline the vulnerability's technical aspects:

Vulnerability Description

The vulnerability resides in the relay6rd parameter of the Tunnel 6rd function in the affected Totolink routers, enabling attackers to inject and execute arbitrary commands.

Affected Systems and Versions

Totolink routers X5000R V9.1.0u.6118_B20201102 and A7000R V9.1.0u.6115_B20201022 are confirmed to be affected by CVE-2022-27003.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted requests containing malicious commands through the relay6rd parameter, triggering the command injection flaw.

Mitigation and Prevention

To secure your systems against CVE-2022-27003, consider the following measures:

Immediate Steps to Take

Disable remote access to affected routers if not required.
Apply security patches or firmware updates provided by Totolink to address the vulnerability.

Long-Term Security Practices

Regularly monitor for security advisories and updates from Totolink.
Implement network segmentation to restrict unauthorized access to critical devices.

Patching and Updates

Ensure timely installation of security patches and firmware updates released by Totolink to address CVE-2022-27003 and enhance the overall security posture of your network.