CVE-2022-28374 : Exploit Details and Defense Strategies

A detailed overview of CVE-2022-28374, a vulnerability impacting Verizon 5G Home LVSKIHP OutDoorUnit (ODU) 3.33.101.0 which allows remote code execution.

Understanding CVE-2022-28374

This section delves into the specifics of CVE-2022-28374, shedding light on the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2022-28374?

CVE-2022-28374 involves the Verizon 5G Home LVSKIHP ODU 3.33.101.0 failing to properly sanitize user-controlled parameters in DMACC URLs, enabling authenticated remote attackers on the local network to execute code remotely as root.

The Impact of CVE-2022-28374

The vulnerability allows attackers to inject shell metacharacters into specific files, potentially leading to unauthorized remote code execution with elevated privileges.

Technical Details of CVE-2022-28374

This section outlines the technical aspects of the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

Verizon 5G Home LVSKIHP ODU 3.33.101.0 lacks proper sanitization, allowing attackers to manipulate user-controlled parameters and inject shell metacharacters into critical files to achieve remote code execution.

Affected Systems and Versions

The vulnerability affects Verizon 5G Home LVSKIHP ODU version 3.33.101.0.

Exploitation Mechanism

Authenticated remote attackers can inject malicious code into /usr/lib/lua/5.1/luci/controller/admin/settings.lua, exploiting the lack of input validation to execute commands as root.

Mitigation and Prevention

Learn about the immediate steps to take to mitigate the risks posed by CVE-2022-28374 and establish long-term security practices to safeguard against similar vulnerabilities.

Immediate Steps to Take

Promptly update the affected Verizon 5G Home LVSKIHP ODU devices to a patched version to prevent malicious actors from exploiting the vulnerability.

Long-Term Security Practices

Implement robust network security measures, user input validation mechanisms, and regular security audits to fortify the overall security posture.

Patching and Updates

Stay informed about security patches and updates released by Verizon to address CVE-2022-28374 and other potential vulnerabilities.