1 files changed, 113 insertions, 0 deletions
diff --git a/scripts/redis-brute.nse b/scripts/redis-brute.nse
new file mode 100644
index 0000000..8f5b9a1
--- /dev/null
+++ b/scripts/redis-brute.nse
@@ -0,0 +1,113 @@
+local brute = require "brute"
+local creds = require "creds"
+local redis = require "redis"
+local shortport = require "shortport"
+local stdnse = require "stdnse"
+
+description = [[
+Performs brute force passwords auditing against a Redis key-value store.
+]]
+
+---
+-- @usage
+-- nmap -p 6379 <ip> --script redis-brute
+--
+-- @output
+-- PORT     STATE SERVICE
+-- 6379/tcp open  unknown
+-- | redis-brute:
+-- |   Accounts
+-- |     toledo - Valid credentials
+-- |   Statistics
+-- |_    Performed 5000 guesses in 3 seconds, average tps: 1666
+--
+--
+
+author = "Patrik Karlsson"
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+categories = {"intrusive", "brute"}
+
+
+portrule = shortport.port_or_service(6379, "redis")
+
+local function fail(err) return stdnse.format_output(false, err) end
+
+Driver = {
+
+  new = function(self, host, port)
+    local o = { host = host, port = port }
+    setmetatable(o, self)
+    self.__index = self
+    return o
+  end,
+
+  connect = function( self )
+    self.helper = redis.Helper:new(self.host, self.port)
+    return self.helper:connect(brute.new_socket())
+  end,
+
+  login = function( self, username, password )
+    local status, response = self.helper:reqCmd("AUTH", password)
+
+    -- some error occurred, attempt to retry
+    if ( status and response.type == redis.Response.Type.ERROR and
+      "-ERR invalid password" == response.data ) then
+      return false, brute.Error:new( "Incorrect password" )
+    elseif ( status and response.type == redis.Response.Type.STATUS and
+      "+OK" ) then
+      return true, creds.Account:new( "", password, creds.State.VALID)
+    else
+      local err = brute.Error:new( response.data )
+      err:setRetry( true )
+      return false, err
+    end
+
+  end,
+
+  disconnect = function(self)
+    return self.helper:close()
+  end,
+
+}
+
+
+local function checkRedis(host, port)
+
+  local helper = redis.Helper:new(host, port)
+  local status = helper:connect()
+  if( not(status) ) then
+    return false, "Failed to connect to server"
+  end
+
+  local status, response = helper:reqCmd("INFO")
+  if ( not(status) ) then
+    return false, "Failed to request INFO command"
+  end
+
+  if ( redis.Response.Type.ERROR == response.type ) then
+    if ( "-ERR operation not permitted" == response.data ) or
+        ( "-NOAUTH Authentication required." == response.data) then
+      return true
+    end
+  end
+
+  return false, "Server does not require authentication"
+end
+
+action = function(host, port)
+
+  local status, err =  checkRedis(host, port)
+  if ( not(status) ) then
+    return fail(err)
+  end
+
+  local engine = brute.Engine:new(Driver, host, port )
+
+  engine.options.script_name = SCRIPT_NAME
+  engine.options.firstonly = true
+  engine.options:setOption( "passonly", true )
+
+  local result
+  status, result = engine:start()
+  return result
+end