CVE-2022-35525 : What You Need to Know

A command injection vulnerability in WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 adm.cgi allows attackers to execute arbitrary commands through the /ledonoff.shtml page.

Understanding CVE-2022-35525

This CVE identifies a security issue in WAVLINK routers that can be exploited to run unauthorized commands.

What is CVE-2022-35525?

The vulnerability in the WAVLINK routers' adm.cgi script enables command injection via the led_switch parameter, posing a significant risk to device security.

The Impact of CVE-2022-35525

If exploited, this vulnerability could lead to unauthorized access, data theft, and complete compromise of affected routers, jeopardizing network security.

Technical Details of CVE-2022-35525

This section covers specific technical aspects of the CVE for a better understanding of the issue.

Vulnerability Description

The flaw stems from insufficient input validation in the parameter led_switch within the /ledonoff.shtml page, allowing attackers to inject and execute commands on the affected routers.

Affected Systems and Versions

The vulnerability affects WAVLINK router models WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3 running the vulnerable firmware versions.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted requests containing malicious commands to the vulnerable router's adm.cgi script, taking advantage of the lack of input validation.

Mitigation and Prevention

To secure systems against CVE-2022-35525, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

Update the router firmware to the latest non-vulnerable version provided by WAVLINK.
Restrict access to the router's configuration interface to trusted devices only.
Monitor network traffic for any suspicious activities targeting the routers.

Long-Term Security Practices

Regularly check for firmware updates and apply them promptly to address security vulnerabilities.
Implement network segmentation to isolate critical devices from potentially compromised segments.
Conduct periodic security audits and assessments to detect and mitigate security risks.

Patching and Updates

WAVLINK may release patches or updates to address the CVE-2022-35525 vulnerability. It is essential to stay informed about such releases and apply them as soon as possible to mitigate the security risk.