CVE-2022-35533 : Security Advisory and Response
Learn about CVE-2022-35533, a command injection flaw in WAVLINK routers, allowing remote attackers to execute arbitrary commands. Find mitigation steps and affected models.
This CVE-2022-35533 article provides detailed information about a command injection vulnerability in WAVLINK routers, affecting models WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3.
Understanding CVE-2022-35533
This section delves into the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2022-35533?
The CVE-2022-35533 vulnerability exists in WAVLINK routers due to the lack of parameter filtering in the qos.cgi script, allowing attackers to execute arbitrary commands via the 'cli_list' and 'cli_num' parameters on the /qos.shtml page.
The Impact of CVE-2022-35533
Exploitation of this vulnerability could lead to unauthorized remote command execution, compromising the security and integrity of affected systems.
Technical Details of CVE-2022-35533
This section outlines the vulnerability description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The flaw lies in the inadequate input validation of parameters in the qos.cgi script, enabling threat actors to inject and execute malicious commands.
Affected Systems and Versions
Models like WN572HP3, WN533A8, WN530H4, WN535G3, and WN531P3 are vulnerable to this command injection issue.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending crafted requests with malicious commands through the 'cli_list' and 'cli_num' parameters, gaining unauthorized access.
Mitigation and Prevention
This section provides guidance on immediate steps to take, long-term security practices, and the importance of timely patching.
Immediate Steps to Take
Users are advised to restrict access to vulnerable routers, monitor network traffic for suspicious activities, and consider implementing network segmentation.
Long-Term Security Practices
Regular security assessments, continuous monitoring, and security awareness training can help in preventing similar vulnerabilities in the future.
Patching and Updates
It is crucial to apply security patches released by WAVLINK promptly to address this vulnerability and enhance the overall security posture of the network.