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c8442d3946
SCRIPT ENGINE (506.424s): ./scripts/pop3-capabilities.nse against a.b.1.47:995 ended with error: ./scripts/pop3-capabilities.nse:32: bad argument #1 to 'pairs' (table expected, got string) which happens because pop3.lua returns a string error message instead of a table of capabilities if it can't connect the socket or obtain a response from a connected socket. It now returns nil, err_message in these cases and the documentation now reflects this - pop3-capabilities.nse silently returns and prints a debug message. Added a 10s timeout for the socket in pop3.lua capabilities - 30s was a bit much.
53 lines
1.5 KiB
Lua
53 lines
1.5 KiB
Lua
description = [[
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Retrieves POP3 email server capabilities.
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POP3 capabilities are defined in RFC 2449. The CAPA command allows a client to
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ask a server what commands it supports and possibly any site-specific policy.
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Besides the list of supported commands, the IMPLEMENTATION string giving the
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server version may be available.
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]]
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---
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-- @output
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-- 110/tcp open pop3
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-- |_ pop3-capabilities: USER CAPA RESP-CODES UIDL PIPELINING STLS TOP SASL(PLAIN)
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author = "Philip Pickering <pgpickering@gmail.com>"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"default"}
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require 'pop3'
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require 'shortport'
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require 'stdnse'
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portrule = shortport.port_or_service({110}, "pop3")
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action = function(host, port)
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local capa, err = pop3.capabilities(host, port)
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if type(capa) == "table" then
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-- Convert the capabilities table into an array of strings.
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local capstrings = {}
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local cap, args
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for cap, args in pairs(capa) do
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local capstr = cap
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if type(args) == "string" then capstr = capstr .. "(" .. args .. ")" end
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if type(args) == "table" then
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local arg
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capstr = capstr .. "("
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for i, arg in ipairs(args) do
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capstr = capstr .. arg .. " "
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end
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capstr = string.sub(capstr, 1, #capstr - 1) .. ")"
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end
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table.insert(capstrings, capstr)
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end
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return stdnse.strjoin(" ", capstrings)
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elseif type(err) == "string" then
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stdnse.print_debug(1, "%s: '%s' for %s", filename, err, host.ip)
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return
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else
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return "server doesn't support CAPA"
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end
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end
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