114 lines
2.7 KiB
Plaintext
114 lines
2.7 KiB
Plaintext
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local brute = require "brute"
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local creds = require "creds"
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local redis = require "redis"
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local shortport = require "shortport"
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local stdnse = require "stdnse"
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description = [[
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Performs brute force passwords auditing against a Redis key-value store.
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]]
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---
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-- @usage
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-- nmap -p 6379 <ip> --script redis-brute
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--
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-- @output
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-- PORT STATE SERVICE
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-- 6379/tcp open unknown
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-- | redis-brute:
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-- | Accounts
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-- | toledo - Valid credentials
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-- | Statistics
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-- |_ Performed 5000 guesses in 3 seconds, average tps: 1666
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--
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--
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author = "Patrik Karlsson"
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license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
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categories = {"intrusive", "brute"}
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portrule = shortport.port_or_service(6379, "redis")
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local function fail(err) return stdnse.format_output(false, err) end
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Driver = {
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new = function(self, host, port)
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local o = { host = host, port = port }
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setmetatable(o, self)
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self.__index = self
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return o
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end,
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connect = function( self )
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self.helper = redis.Helper:new(self.host, self.port)
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return self.helper:connect(brute.new_socket())
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end,
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login = function( self, username, password )
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local status, response = self.helper:reqCmd("AUTH", password)
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-- some error occurred, attempt to retry
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if ( status and response.type == redis.Response.Type.ERROR and
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"-ERR invalid password" == response.data ) then
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return false, brute.Error:new( "Incorrect password" )
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elseif ( status and response.type == redis.Response.Type.STATUS and
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"+OK" ) then
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return true, creds.Account:new( "", password, creds.State.VALID)
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else
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local err = brute.Error:new( response.data )
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err:setRetry( true )
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return false, err
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end
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end,
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disconnect = function(self)
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return self.helper:close()
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end,
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}
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local function checkRedis(host, port)
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local helper = redis.Helper:new(host, port)
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local status = helper:connect()
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if( not(status) ) then
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return false, "Failed to connect to server"
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end
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local status, response = helper:reqCmd("INFO")
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if ( not(status) ) then
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return false, "Failed to request INFO command"
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end
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if ( redis.Response.Type.ERROR == response.type ) then
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if ( "-ERR operation not permitted" == response.data ) or
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( "-NOAUTH Authentication required." == response.data) then
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return true
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end
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end
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return false, "Server does not require authentication"
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end
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action = function(host, port)
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local status, err = checkRedis(host, port)
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if ( not(status) ) then
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return fail(err)
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end
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local engine = brute.Engine:new(Driver, host, port )
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engine.options.script_name = SCRIPT_NAME
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engine.options.firstonly = true
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engine.options:setOption( "passonly", true )
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local result
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status, result = engine:start()
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return result
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end
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