ACE (Automated Corporate Enumerator) is a simple yet powerful VoIP Corporate Directory enumeration tool that mimics the behavior of an IP Phone in order to download the name and extension entries that a given phone can display on its screen interface. In the same way that the “corporate directory” feature of VoIP hardphones enables users to easily dial by name via their VoIP handsets, it was developed as a research idea born from “VoIP Hopper” to automate VoIP attacks that can be targeted against names in an enterprise Directory. The concept is that in the future, attacks will be carried out against users based on their name, rather than targeting VoIP traffic against random RTP audio streams or IP addresses. it works by using DHCP, TFTP, and HTTP in order to download the VoIP corporate directory. It then outputs the directory to a text file, which can be used as input to other VoIP assessment tools. it is a standalone utility, but its functions are integrated into UCSniff.
[-i interface] [ -m mac address ] [ -t tftp server ip address | -c cdp mode | -v voice vlan id | -r vlan | -d verbose mode ]
-i <interface> (Mandatory) Interface for sniffing/sending packets -m <mac address> (Mandatory) MAC address of the victim IP phone -t <tftp server ip> (Optional) tftp server ip address -c <cdp mode 0|1 > (Optional) 0 CDP sniff mode, 1 CDP spoof mode -v <voice vlan id> (Optional) Enter the voice vlan ID -r <vlan> (Optional) Removes the VLAN -d (Optional) Verbose | debug mode
Usage requires MAC Address of IP Phone supplied with -m option Usage: ace -t <TFTP-Server-IP> -m <MAC-Address> Mode to automatically discover TFTP Server IP via DHCP Option 150 (-m) Example: ace -i eth0 -m 00:1E:F7:28:9C:8e Mode to specify IP Address of TFTP Server Example: ace -i eth0 -t 192.168.10.150 -m 00:1E:F7:28:9C:8e Mode to specify the Voice VLAN ID Example: ace -i eth0 -v 96 -m 00:1E:F7:28:9C:8E