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o [NSE] Made irc-info.nse handle the case where the MOTD is missing.

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Patch by Sebastian Dragomir.
This commit is contained in:
david
2011-09-21 05:09:26 +00:00
parent 8628520123
commit 22ebd46baa
2 changed files with 17 additions and 0 deletions
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14
scripts/irc-info.nse
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@@ -32,6 +32,10 @@ local init = function()
nmap.registry.ircserverinfo_375 = nmap.registry.ircserverinfo_375
or pcre.new("^:([\\w-_.]+) 375", 0, "C")
-- MOTD could be missing, we want to handle that scenario as well
nmap.registry.ircserverinfo_422 = nmap.registry.ircserverinfo_422
or pcre.new("^:([\\w-_.]+) 422", 0, "C")
-- NICK already in use
nmap.registry.ircserverinfo_433 = nmap.registry.ircserverinfo_433
or pcre.new("^:[\\w-_.]+ 433", 0, "C")
@@ -80,6 +84,7 @@ action = function(host, port)
local myhost, myident
local s, e, t
local buf
local banner_timeout = 60
local make_output = function()
local o = ""
if (not shost) then
@@ -120,6 +125,9 @@ action = function(host, port)
local sd, line = comm.tryssl(host, port, "USER nmap +iw nmap :Nmap Wuz Here\nNICK " .. curr_nick .. "\n")
if not sd then return "Unable to open connection" end
-- set a healthy banner timeout
sd:set_timeout(banner_timeout * 1000)
buf = stdnse.make_buffer(sd, "\r?\n")
while true do
@@ -132,6 +140,12 @@ action = function(host, port)
sd:send("LUSERS\nVERSION\nSTATS u\nWHO " .. curr_nick .. "\nQUIT\n")
end
s, e, t = nmap.registry.ircserverinfo_422:exec(line, 0, 0)
if (s) then
shost = string.sub(line, t[1], t[2])
sd:send("LUSERS\nVERSION\nSTATS u\nWHO " .. curr_nick .. "\nQUIT\n")
end
s, e, t = nmap.registry.ircserverinfo_433:exec(line, 0, 0)
if (s) then
curr_nick = random_nick()