CVE-2022-28373 : Security Advisory and Response

Verizon 5G Home LVSKIHP InDoorUnit (IDU) version 3.4.66.162 is affected by a vulnerability that allows a remote attacker on the local network to achieve remote code execution as root by injecting shell metacharacters. Learn more about CVE-2022-28373 and how to mitigate the risk.

Understanding CVE-2022-28373

This section will provide insights into the nature and impact of the vulnerability.

What is CVE-2022-28373?

The CVE-2022-28373 vulnerability affects Verizon 5G Home LVSKIHP InDoorUnit (IDU) version 3.4.66.162. It arises due to improper sanitization of user-controlled parameters within the crtcreadpartition function of the crtcrpc JSON listener in /usr/lib/lua/luci/crtc.lua. This flaw enables a remote attacker to execute arbitrary code as root.

The Impact of CVE-2022-28373

The impact of this vulnerability is severe as it allows an attacker within the local network to exploit the device and gain unauthorized root access, potentially leading to complete compromise of the affected system.

Technical Details of CVE-2022-28373

Let's dive into the technical aspects of the CVE-2022-28373 vulnerability.

Vulnerability Description

The vulnerability in Verizon 5G Home LVSKIHP InDoorUnit (IDU) version 3.4.66.162 originates from the lack of proper sanitization of user-controlled parameters, enabling the injection of shell metacharacters for remote code execution.

Affected Systems and Versions

The impacted system includes the specific version 3.4.66.162 of the Verizon 5G Home LVSKIHP InDoorUnit (IDU).

Exploitation Mechanism

Exploiting CVE-2022-28373 involves injecting shell metacharacters through the crtcreadpartition function of the crtcrpc JSON listener in /usr/lib/lua/luci/crtc.lua to execute malicious code as root.

Mitigation and Prevention

Discover how to protect your system from CVE-2022-28373 and prevent potential security risks.

Immediate Steps to Take

It is crucial to apply security patches or updates released by the vendor to address the vulnerability promptly. Additionally, restricting network access and monitoring for any suspicious activities are recommended.

Long-Term Security Practices

Implementing network segmentation, regularly updating software, conducting security assessments, and educating users on safe practices can enhance the overall security posture.

Patching and Updates

Stay informed about security updates from Verizon and apply patches as soon as they are available to eliminate the vulnerability and safeguard your system.