cgi-bin/AZ_Retrain.cgi in Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices does not check for authentication, which allows remote attackers to cause a denial of service (WAN connectivity reset) via a direct request.Referenceshttp://packetstormsecurity.com/files/128254/Aztech-DSL5018EN-DSL705E-DSL705EU-DoS-Broken-Session-Management.htmlhttp://www.securityfocus.com/bid/69809