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726b259b20
These implementations were all functionally identical. The replacement has an extra feature of returning the index where the value was found, currently unused.
82 lines
2.5 KiB
Lua
82 lines
2.5 KiB
Lua
local ajp = require "ajp"
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local shortport = require "shortport"
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local stdnse = require "stdnse"
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local table = require "table"
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description = [[
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Discovers which options are supported by the AJP (Apache JServ
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Protocol) server by sending an OPTIONS request and lists potentially
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risky methods.
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In this script, "potentially risky" methods are anything except GET,
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HEAD, POST, and OPTIONS. If the script reports potentially risky
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methods, they may not all be security risks, but you should check to
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make sure. This page lists the dangers of some common methods:
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http://www.owasp.org/index.php/Testing_for_HTTP_Methods_and_XST_%28OWASP-CM-008%29
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]]
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---
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-- @usage
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-- nmap -p 8009 <ip> --script ajp-methods
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--
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-- @output
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-- PORT STATE SERVICE
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-- 8009/tcp open ajp13
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-- | ajp-methods:
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-- | Supported methods: GET HEAD POST PUT DELETE TRACE OPTIONS
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-- | Potentially risky methods: PUT DELETE TRACE
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-- |_ See http://nmap.org/nsedoc/scripts/ajp-methods.html
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--
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-- @args ajp-methods.path the path to check or <code>/<code> if none was given
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--
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author = "Patrik Karlsson"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"default", "safe"}
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portrule = shortport.port_or_service(8009, 'ajp13', 'tcp')
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local arg_url = stdnse.get_script_args(SCRIPT_NAME .. ".path") or "/"
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local UNINTERESTING_METHODS = { "GET", "HEAD", "POST", "OPTIONS" }
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local function filter_out(t, filter)
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local result = {}
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for _, e in ipairs(t) do
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if ( not(stdnse.contains(filter, e)) ) then
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result[#result + 1] = e
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end
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end
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return result
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end
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local function fail(err) return ("\n ERROR: %s"):format(err or "") end
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action = function(host, port)
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local helper = ajp.Helper:new(host, port)
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if ( not(helper:connect()) ) then
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return fail("Failed to connect to server")
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end
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local status, response = helper:options(arg_url)
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helper:close()
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if ( not(status) or response.status ~= 200 or
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not(response.headers) or not(response.headers['allow']) ) then
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return "Failed to get a valid response for the OPTION request"
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end
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local methods = stdnse.strsplit(",%s", response.headers['allow'])
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local output = {}
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table.insert(output, ("Supported methods: %s"):format(stdnse.strjoin(" ", methods)))
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local interesting = filter_out(methods, UNINTERESTING_METHODS)
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if ( #interesting > 0 ) then
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table.insert(output, "Potentially risky methods: " .. stdnse.strjoin(" ", interesting))
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table.insert(output, "See http://nmap.org/nsedoc/scripts/ajp-methods.html")
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end
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return stdnse.format_output(true, output)
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end
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