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High · 7.2 Public exploit CVE-2022-43973 EUVD-2022-46941GHSA-j637-xgw5-6q5c

Arbitrary code execution in Linksys WRT54GL

Published Jan 9, 2023 · Updated Apr 9, 2025 · Assigned by trellix

Description

An arbitrary code execution vulnerability exisits in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. The Check_TSSI function within the httpd binary uses unvalidated user input in the construction of a system command. An authenticated attacker with administrator privileges can leverage this vulnerability over the network via a malicious POST request to /apply.cgi to execute arbitrary commands on the underlying Linux operating system as root.

Affected products

VendorProductAffectedFixed
Linksys WRT54GL Wireless-G Broadband Router Firmware – ≤ 4.30.18.006 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References