Invision Power Board 2.1 <= 2.1.6 sql injection

[barney]

RST/GHC advisory#41
Product: Invision Power Board
Version: 2.1 <= 2.1.6
Vendor: INVISION Power Service
URL: http://www.invisionpower.com
VULNERABILITY CLASS: SQL injection
[Product Description]
Invision Power Board, an award-winning scaleable bulletin board system, written in PHP, uses SQL database.
"Invision Power Board is packed with useful features that enable you to quickly and painlessly configure and manage every aspect of your board."

[Summary]
Unsufficient sanitazing of the user depend data in HTTP header may lead to SQL injection attack.

[Details]
Data from HTTP variable CLIENT_IP puts directly to sql statement:

 /sources/ipsclass.php 
 $addrs[] = $_SERVER['HTTP_CLIENT_IP']; 
 $addrs[] = $_SERVER['REMOTE_ADDR']; 
 $addrs[] = $_SERVER['HTTP_PROXY_USER']; 
 foreach ( $addrs as $ip ) 
  { 
   if ( $ip ) 
   { 
   $this->ip_address = $ip; 
   break; 
   } 
  }

 /sources/classes/class_session.php 
 if ( $this->ipsclass->vars['match_ipaddress'] == 1 ) 
  { 
  $query .= " AND ip_address='".$this->ipsclass->ip_address."'"; 
  } 
 
$this->ipsclass->DB->simple_construct(array( 'select' => 'id, member_id, running_time, location', 
                                                            'from'   => 'sessions', 
                                                           'where'  => "id='".$session_id."'".$query));

[Exploit]
http://rst.void.ru/download/r57ipb216gui.txt

[Bugfix]
Upgrade to 2.1.7 version

[Credits]
1dt.w0lf
RST/GHC

[barney]

Hello rst,
i got this from your website couple days ago. it does NOT work on any
2.1.6 board i have here even vanilla default install.

can anyone please confirm this working on 2.1.6??

i removed their "phone home", and added a user-agent string, in their
exploit.

[barney]

IPB 2.1.7 fixes this problem.