CVE-2022-43636

High

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of TP-Link TL-WR940N 6_211111 3.20.1(US) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of sufficient randomness in the sequnce numbers used for session managment. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-18334.

SeverityHigh
CVSS8.8
Exploit probability—
ProductTp-link Tl-wr940n Firmware
PublishedMar 29, 2023
First seenMar 29, 2023
Weakness typeCWE-330CWE-330

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
tp-link tl-wr940n_firmware6_211111_3.20.1—

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