CVE-2022-36613 : Security Advisory and Response

TOTOLINK N600R V4.3.0cu.7647_B20210106 was found to have a hardcoded password for root at /etc/shadow.sample.

Understanding CVE-2022-36613

This CVE involves a vulnerability in TOTOLINK N600R V4.3.0cu.7647_B20210106, where a hardcoded password for root was discovered at /etc/shadow.sample.

What is CVE-2022-36613?

CVE-2022-36613 refers to a hardcoded root password vulnerability in TOTOLINK N600R V4.3.0cu.7647_B20210106, potentially exposing the device to unauthorized access.

The Impact of CVE-2022-36613

This vulnerability could allow attackers to gain unauthorized access to the affected device, leading to potential security breaches and data compromise.

Technical Details of CVE-2022-36613

This section covers the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

TOTOLINK N600R V4.3.0cu.7647_B20210106 contains a hardcoded password for root at /etc/shadow.sample, which poses a security risk due to the exposure of sensitive credentials.

Affected Systems and Versions

The affected system is TOTOLINK N600R V4.3.0cu.7647_B20210106. The specific version impacted by this vulnerability is V4.3.0cu.7647_B20210106.

Exploitation Mechanism

An attacker could exploit this vulnerability by leveraging the hardcoded password to gain unauthorized access to the root account, compromising the security of the device.

Mitigation and Prevention

Here are the necessary steps to mitigate and prevent the risks associated with CVE-2022-36613.

Immediate Steps to Take

Change the default root password on the affected TOTOLINK N600R V4.3.0cu.7647_B20210106 device to a strong, unique password.
Implement network segmentation to restrict unauthorized access to the device.

Long-Term Security Practices

Regularly update the device firmware to patch known vulnerabilities and enhance security measures.
Conduct security audits and penetration testing to identify and address potential security weaknesses.

Patching and Updates

Stay informed about security advisories from TOTOLINK and apply relevant patches promptly to address known vulnerabilities and protect the device from exploitation.