1 files changed, 121 insertions, 0 deletions
diff --git a/scripts/vmauthd-brute.nse b/scripts/vmauthd-brute.nse
new file mode 100644
index 0000000..cdaf705
--- /dev/null
+++ b/scripts/vmauthd-brute.nse
@@ -0,0 +1,121 @@
+local brute = require "brute"
+local creds = require "creds"
+local match = require "match"
+local nmap = require "nmap"
+local shortport = require "shortport"
+local stdnse = require "stdnse"
+
+description = [[
+Performs brute force password auditing against the VMWare Authentication Daemon (vmware-authd).
+]]
+
+---
+-- @usage
+-- nmap -p 902 <ip> --script vmauthd-brute
+--
+-- @output
+-- PORT    STATE SERVICE
+-- 902/tcp open  iss-realsecure
+-- | vmauthd-brute:
+-- |   Accounts
+-- |     root:00000 - Valid credentials
+-- |   Statistics
+-- |_    Performed 183 guesses in 40 seconds, average tps: 4
+--
+
+author = "Patrik Karlsson"
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+categories = {"brute", "intrusive"}
+
+
+portrule = shortport.port_or_service(902, {"ssl/vmware-auth", "vmware-auth"}, "tcp")
+
+local function fail(err) return stdnse.format_output(false, err) end
+Driver = {
+
+  new = function(self, host, port, options)
+    local o = { host = host, port = port }
+    setmetatable(o, self)
+    self.__index = self
+    return o
+  end,
+
+  connect = function(self)
+    self.socket = brute.new_socket()
+    return self.socket:connect(self.host, self.port)
+  end,
+
+  login = function(self, username, password)
+    local status, line = self.socket:receive_buf(match.pattern_limit("\r\n", 2048), false)
+    if ( line:match("^220 VMware Authentication Daemon.*SSL Required") ) then
+      self.socket:reconnect_ssl()
+    end
+
+    status = self.socket:send( ("USER %s\r\n"):format(username) )
+    if ( not(status) ) then
+      local err = brute.Error:new( "Failed to send data to server" )
+      err:setRetry( true )
+      return false, err
+    end
+
+    local status, response = self.socket:receive_buf(match.pattern_limit("\r\n", 2048), false)
+    if ( not(status) or not(response:match("^331") ) ) then
+      local err = brute.Error:new( "Received unexpected response from server" )
+      err:setRetry( true )
+      return false, err
+    end
+
+    status = self.socket:send( ("PASS %s\r\n"):format(password) )
+    if ( not(status) ) then
+      local err = brute.Error:new( "Failed to send data to server" )
+      err:setRetry( true )
+      return false, err
+    end
+    status, response = self.socket:receive_buf(match.pattern_limit("\r\n", 2048), false)
+
+    if ( response:match("^230") ) then
+      return true, creds.Account:new(username, password, creds.State.VALID)
+    end
+
+    return false, brute.Error:new( "Login incorrect" )
+  end,
+
+  disconnect = function(self)
+    return self.socket:close()
+  end
+
+}
+
+local function checkAuthd(host, port)
+  local socket = nmap.new_socket()
+  local status = socket:connect(host, port)
+
+  if( not(status) ) then
+    return false, "Failed to connect to server"
+  end
+
+  local status, line = socket:receive_buf(match.pattern_limit("\r\n", 2048), false)
+  socket:close()
+  if ( not(status) ) then
+    return false, "Failed to receive response from server"
+  end
+
+  if ( not( line:match("^220 VMware Authentication Daemon") ) ) then
+    return false, "Failed to detect VMWare Authentication Daemon"
+  end
+  return true
+end
+
+
+action = function(host, port)
+  local status, err = checkAuthd(host, port)
+  if ( not(status) ) then
+    return fail(err)
+  end
+
+  local engine = brute.Engine:new(Driver, host, port)
+  engine.options.script_name = SCRIPT_NAME
+  local result
+  status, result = engine:start()
+  return result
+end