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CVE-2022-23731 is a heap vulnerability in the V8 JavaScript engine affecting some webOS TV models. Successful exploitation can cause privilege escalation on an affected device.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository implements a local privilege escalation (LPE) exploit chain for LG WebOS 4.x (CVE-2022-23731), targeting 32-bit SoCs. The exploit is packaged as a WebOS application (IPK) and is intended for research purposes. The main components are: - A JavaScript-based exploit (app/wampage.js) that abuses a V8 engine vulnerability to achieve arbitrary read/write primitives in the browser context of the WebOS app. - A two-stage shellcode payload: Stage 1 (ARM assembly) sets up RWX memory and executes Stage 2; Stage 2 is a Python script (src/devmemes.py) that accesses /dev/mem to manipulate kernel structures and escalate privileges to root. - Upon successful exploitation, the payload spawns a telnet server on port 31337, providing a root shell to the attacker. - The repository includes build scripts, shellcode assembly, and a C runner for testing the shellcode locally. - The exploit requires the ability to install and run developer-mode applications on the target TV, and is triggered by user interaction (pressing 'Start Exploit' in the app UI). Key fingerprintable endpoints include /dev/mem, /proc/kallsyms, /usr/bin/python2, and the telnet server on port 31337. The exploit is operational and provides a working root shell if successful.
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