CVE-2022-40621 Explained : Impact and Mitigation
Learn about CVE-2022-40621 affecting WAVLINK Quantum D4G (WN531G3) routers due to password interception vulnerability, enabling unauthorized access by attackers.
This article provides an overview of CVE-2022-40621, a vulnerability impacting the WAVLINK Quantum D4G (WN531G3).
Understanding CVE-2022-40621
CVE-2022-40621 is a security issue that affects the WAVLINK Quantum D4G (WN531G3) router due to its firmware version M31G3.V5030.200325 and earlier. The vulnerability arises from the device communicating over HTTP instead of HTTPS and lacking a server-supplied key for hashing passwords.
What is CVE-2022-40621?
The CVE-2022-40621 vulnerability allows an attacker with network access to intercept hashed passwords of logged-in users, enabling them to potentially conduct Pass-the-Hash attacks.
The Impact of CVE-2022-40621
The impact of CVE-2022-40621 is significant as it exposes users of the affected WAVLINK router to potential credential theft and unauthorized access to their accounts.
Technical Details of CVE-2022-40621
The technical details of CVE-2022-40621 include:
Vulnerability Description
The vulnerability stems from the insecure communication method (HTTP) and the absence of a secure hashing mechanism, leading to password interception.
Affected Systems and Versions
The WAVLINK Quantum D4G (WN531G3) devices running firmware version M31G3.V5030.200325 and earlier are affected by this vulnerability.
Exploitation Mechanism
Attackers with sufficient network access can exploit this vulnerability to capture hashed passwords and misuse them for unauthorized activities.
Mitigation and Prevention
To address CVE-2022-40621, consider the following mitigation strategies:
Immediate Steps to Take
Users of the affected routers should immediately transition to HTTPS communication and implement secure password hashing mechanisms.
Long-Term Security Practices
Regularly update the router firmware, use complex and unique passwords, and monitor network traffic for any suspicious activities.
Patching and Updates
Stay informed about security patches released by WAVLINK for the Quantum D4G (WN531G3) routers and apply them promptly.