NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup

NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.

NuCom WR644GACV devices before STA006 allow an attacker to download the configuration file without credentials. By downloading this file, an attacker can access the admin password, WPA key, and any config information of the device.