#VU69569 Use of insufficiently random values


Published: 2022-11-24

Vulnerability identifier: #VU69569

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-43636

CWE-ID: CWE-330

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
TL-WR940N
Hardware solutions / Routers for home users

Vendor:

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the lack of sufficient randomness in the sequnce numbers used for session managment within the httpd service. A remote attacker on the local network can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions


External links
http://www.zerodayinitiative.com/advisories/ZDI-22-1614/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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