[NSE] sip-extensions.nse

[Hani Benhabiles <kroosec () gmail com>]

Hi list,

description = [[
Scans a numeric range of SIP extensions to find valid ones.

The script works by sending REGISTER SIP requests to the server with the
specified extension number and checking for the response status code in 
order
to know if an extension is valid. If a response status code is 401 or
407, it means that the extension is valid and requires authentication. 
If the
response status code is 200, it means that the extension exists and doesn't
require any authentication while a 403 response status code means that
extension exists but access is forbidden. To skip false positives, the 
script
begins by sending a REGISTER request for a random extension and checking for
response status code.
]]

---
--@args sip-extensions.minext Extension value to start enumeration from.
--  Defaults to <code>0</code>.
--
--@args sip-extensions.maxext Extension value to end enumeration at.
--  Defaults to <code>999</code>.
--
--@args sip-extensions.padding Number of digits to pad zeroes up to.
--  Defaults to <code>0</code>. No padding if this is set to zero.
--
--@args sip-extensions.threads Number of threads to use.
--  Defaults to <code>1</code>.
--
--@usage
-- nmap --script=sip-extensions -sU -p 5060 <targets>
--
-- nmap --script=sip-extensions -sU -p 5060 <targets>
-- script-args sip-extensions.padding=4, sip-extensions.minext=1000,
-- sip-extensions.maxext=9999
--
--@output
-- 5060/udp open sip
-- | sip-extensions:
-- |   101 : Authentication required.
-- |   112 : Authentication required.
-- |_  150 : No authentication.


--
Hani Benhabiles

Twitter: https://twitter.com/#!/kroosec
Blog: http://kroosec.blogspot.com

Attachment: sip-extensions.nse
Description:

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