PT-2022-5032 · Wavlink · Wavlink Quantum D4G

Corey Hartman · Published 2022-09-12 · Updated 2022-09-19 · CVE-2022-40622

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions WAVLINK Quantum D4G (WN531G3) version M31G3.V5030.200325

Description The issue is related to the authentication procedure in the WAVLINK Quantum D4G (WN531G3) Wi-Fi router. The device uses IP addresses to hold sessions and does not utilize session tokens. This allows an attacker to take over a session if they change their IP address to match the logged-in administrator's or are behind the same NAT as the logged-in administrator.

Recommendations For version M31G3.V5030.200325, consider restricting access to the router's administration interface to minimize the risk of session takeover until a patch is available. As a temporary workaround, limit the number of users who can access the administration interface and ensure that all users are behind a secure and unique NAT. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Authentication

Weakness Enumeration

CWE-287

CWE-304

Related Identifiers

BDU:2022-06251

CVE-2022-40622

Affected Products

Wavlink Quantum D4G

References · 11

• 🔥 https://youtu.be/cSileV8YbsQ?t=655 · Exploit
• https://bdu.fstec.ru/vul/2022-06251 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40622 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-40622 · Security Note
• https://vuldb.com/?id.208561 · Note
• https://wavlink.com/en_us/WL-WN531G3 · Note
• https://t.me/cvenotify/36114 · Telegram Post
• https://youtube.com/watch?v=cSileV8YbsQ&t=655s · Note
• https://t.me/cibsecurity/49733 · Telegram Post
• https://github.com/Xenios91/Wavlink-DG4-ZeroDays/blob/main/WavlinkD4G_NAS_Command_Injection.py · Note
• https://youtube.com/watch?v=cSileV8YbsQ&t=655s · Note