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Added TCP support. Cleaned redundant code.

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kroosec
2012-06-28 09:00:36 +00:00
parent 2dffec733e
commit c28ec08836
1 changed files with 9 additions and 13 deletions
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22
scripts/sip-enum-users.nse
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@@ -35,26 +35,21 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"intrusive", "auth"}
portrule = shortport.port_or_service(5060, "sip", "udp")
portrule = shortport.port_or_service(5060, "sip", {"tcp", "udp"})
-- Send a register request to the server and returned the unparsed response
-- @param session instance of Session class
-- @param username string containing the name of the user
-- @param Used protocol, could be "UDP" or "TCP"
-- @return status true on success false on failure
-- @return response instance of sip.Response (on success)
-- @return err string containing the error message (on failure)
local function register(session, username)
local request = sip.Request:new(sip.Method.REGISTER)
local callid = sip.Util.get_random_string(20)
local function register(session, username, protocol)
local request = sip.Request:new(sip.Method.REGISTER, protocol)
session.sessdata:setUsername(username)
request:setUri("sip:" .. session.sessdata:getServer() )
request:setSessionData(session.sessdata)
request:setCallId(callid)
request:setExpires(0)
request:setAllow({"PRACK","INVITE","ACK","BYE","CANCEL","UPDATE",
"SUBSCRIBE","NOTIFY","REFER","MESSAGE","OPTIONS"})
request:setContentLength(0)
local status, response = session:exch(request)
if (not(status)) then return false, response end
@@ -78,7 +73,7 @@ local function confirmServer(host, port)
end
local response
status, response = register(session, user)
status, response = register(session, user, port.protocol:upper())
if ( status ) then
return true, (
response:getHeader("User-Agent") or
@@ -92,10 +87,11 @@ end
-- Asterisk specific function used to check for valid usernames
-- @param session instance of SIP Session
-- @param username string containing the SIP username
-- @param Used protocol, could be "UDP" or "TCP"
-- @return status true on success, false on failure
-- @return err on failure
local function checkAsteriskUsername(session, username)
local status, response = register(session, username)
local function checkAsteriskUsername(session, username, protocol)
local status, response = register(session, username, protocol)
if ( status and response:getErrorCode() == 401 ) then
return true, "SUCCESS"
end
@@ -136,7 +132,7 @@ action = function(host, port)
return "ERROR: Failed to connect to the SIP server"
end
local status, err = checkUsername( session, username )
local status, err = checkUsername( session, username, port.protocol:upper() )
if ( status ) then table.insert( accounts, username ) end
session:close()