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GitHub Repository: rapid7/metasploit-framework
 Path: blob/master/documentation/modules/auxiliary/scanner/sip/options_tcp.md
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Vulnerable Application

SIP is a signaling protocol for voice, and video typically associated with VOIP and typically used in commercial phone systems. SIP and VOIP are gaining popularity with home and cellular voice/video calling systems as well.

This module scans the TCP port to identify what OPTIONS are available on the SIP service.

Verification Steps

  1. Start msfconsole

  2. Do: use auxiliary/scanner/sip/options_tcp

  3. Do: set rhosts [ip]

  4. Do: run

Scenarios

Cisco UC520

msf5 > use auxiliary/scanner/sip/options_tcp 
msf5 auxiliary(scanner/sip/options_tcp) > set rhosts 2.2.2.2
rhosts => 2.2.2.2
msf5 auxiliary(scanner/sip/options_tcp) > run

[*] 2.2.2.2:5060    - 2.2.2.2:5060 tcp SIP/2.0 200 OK: {"Server"=>"Cisco-SIPGateway/IOS-12.x", "Allow"=>"INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER"}
[*] 2.2.2.2:5060    - Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed

Confirming using NMAP

Utilizing the sip-methods script

nmap --script=sip-methods -p 5060 2.2.2.2

Starting Nmap 7.70 ( https://nmap.org ) at 2018-10-11 15:44 EDT
Nmap scan report for 2.2.2.2
Host is up (0.0036s latency).

PORT     STATE SERVICE
5060/tcp open  sip
|_sip-methods: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
MAC Address: 00:1B:8F:AA:AA:AA (Cisco Systems)