IceBB 1.0rc6 <= Remote SQL Injection

[aeroxteam-nospam () gmail com]

[|Description:|]
A security breach has been discoverd in IceBB 1.0-rc6.
This breach is caused by a bad filtering of the X-Forwarded-For variable:

> ./includes/functions.php, line 73
$ip      = empty($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['REMOTE_ADDR'] : $_SERVER['HTTP_X_FORWARDED_FOR'];
$ip     = $this->clean_key($ip);
$input['ICEBB_USER_IP'] = $ip;

> ./icebb.php, line 169
$icebb->client_ip       = $input['ICEBB_USER_IP'];

> ./admin/index.php, line 112
$icebb->adsess  = $db->fetch_result("SELECT adsess.*,u.id as userid,u.username,u.temp_ban,g.g_view_board FROM 
icebb_adsess AS adsess LEFT JOIN icebb_users AS u ON u.username=adsess.user LEFT JOIN icebb_groups AS g ON 
u.user_group=g.gid WHERE adsess.asid='{$icebb->input['s']}' AND adsess.ip='{$icebb->client_ip}' LIMIT 1");

A hacker could exploit this security breach in order to alter a SQL request.

[|Exploit:|]
http://www.aeroxteam.fr/exploit-IceBB-1.0rc6.php

[|Solution:|]
No one. Think about update your forum core when a patch will be available on the official website.

[|Credits:|]
Gu1ll4um3r0m41n (aeroxteam --[at]-- gmail --[dot]-- com)
for AeroX (AeroXteam.fr)

[|Greetz:|]
Math², KERNEL_ERROR, NeoMorphS, Snake91, Goundy, Alkino (...) And everybody from #aerox