vtiger CRM 4.2.4, and possibly earlier, allows remote attackers to bypass authentication and access administrative modules via a direct request to index.php with a modified module parameter, as demonstrated using the Settings module.Referenceshttp://secunia.com/advisories/21728http://www.security-net.biz/adv/D3906a.txthttp://www.vupen.com/english/advisories/2006/3444http://www.securityfocus.com/bid/19829http://www.osvdb.org/28462
