CVE-2022-21173 : Security Advisory and Response

A hidden functionality vulnerability has been discovered in ELECOM LAN routers, specifically in various firmware versions, that could allow an attacker to execute arbitrary OS commands via unspecified vectors.

Understanding CVE-2022-21173

This CVE refers to a vulnerability found in ELECOM LAN routers, exposing affected versions to potential exploitation by threat actors.

What is CVE-2022-21173?

The CVE-2022-21173 vulnerability exists in certain firmware versions of ELECOM LAN routers, enabling attackers on the nearby network to run unauthorized OS commands.

The Impact of CVE-2022-21173

The vulnerability poses a significant risk of unauthorized command execution, potentially leading to severe consequences such as data breaches or network compromise.

Technical Details of CVE-2022-21173

This section provides a detailed overview of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The flaw in ELECOM LAN routers allows attackers on the adjacent network to execute arbitrary OS commands.

Affected Systems and Versions

ELECOM LAN routers with WRH-300BK3, WRH-300WH3, WRH-300BK3-S, WRH-300DR3-S, WRH-300LB3-S, WRH-300PN3-S, WRH-300WH3-S, and WRH-300YG3-S firmware versions v1.05 and earlier are impacted.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging unspecified vectors to execute malicious OS commands.

Mitigation and Prevention

It is crucial to take immediate steps to address the CVE-2022-21173 vulnerability and implement long-term security measures to prevent future incidents.

Immediate Steps to Take

Users should apply security patches provided by ELECOM CO.,LTD. promptly to mitigate the risk of exploitation.

Long-Term Security Practices

Maintain a proactive approach to network security, including regular monitoring, timely updates, and security awareness training for all users.

Patching and Updates

Regularly check for firmware updates and apply patches as soon as they are released to ensure the security of ELECOM LAN routers.