84 lines
2.0 KiB
Lua
84 lines
2.0 KiB
Lua
description = [[
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Decodes any unencrypted F5 BIG-IP cookies in the HTTP response.
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BIG-IP cookies contain information on backend systems such as
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internal IP addresses and port numbers.
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See here for more info: https://support.f5.com/csp/article/K6917
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]]
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local http = require "http"
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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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---
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-- @usage
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-- nmap -p <port> --script http-bigip-cookie <target>
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--
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-- @output
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-- PORT STATE SERVICE
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-- 80/tcp open http
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-- | http-bigip-cookie:
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-- | BIGipServer<pool_name>:
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-- | address:
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-- | host: 10.1.1.100
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-- | type: ipv4
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-- |_ port: 8080
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--
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-- @xmloutput
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-- <table key="BIGipServer<pool_name>">
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-- <table key="address">
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-- <elem key="host">10.1.1.100</elem>
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-- <elem key="type">ipv4</elem>
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-- </table>
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-- <elem key="port">8080</elem>
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-- </table>
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--
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-- @args http-bigip-cookie.path The URL path to request. The default path is "/".
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author = "Seth Jackson"
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license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
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categories = { "discovery", "safe" }
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portrule = shortport.http
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action = function(host, port)
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local path = stdnse.get_script_args(SCRIPT_NAME..".path") or "/"
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local response = http.get(host, port, path, { redirect_ok = false })
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if not response then
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return
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end
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if not response.cookies then
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return
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end
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local output = stdnse.output_table()
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for _, cookie in ipairs(response.cookies) do
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if cookie.name:find("BIGipServer") then
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local host, port = cookie.value:match("^(%d+)%.(%d+)%.")
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if host and tonumber(host) < 0x100000000 and tonumber(port) < 0x10000 then
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host = table.concat({("BBBB"):unpack(("<I4"):pack(host))}, ".", 1, 4)
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port = (">I2"):unpack(("<I2"):pack(port))
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local result = {
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address = {
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host = host,
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type = "ipv4"
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},
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port = port
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}
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output[cookie.name] = result
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end
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end
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end
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if #output > 0 then
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return output
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end
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end
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