1 files changed, 97 insertions, 0 deletions
diff --git a/scripts/mysql-users.nse b/scripts/mysql-users.nse
new file mode 100644
index 0000000..dc86a3d
--- /dev/null
+++ b/scripts/mysql-users.nse
@@ -0,0 +1,97 @@
+local mysql = require "mysql"
+local nmap = require "nmap"
+local shortport = require "shortport"
+local stdnse = require "stdnse"
+
+local openssl = stdnse.silent_require "openssl"
+
+description = [[
+Attempts to list all users on a MySQL server.
+]]
+
+---
+-- @args mysqluser The username to use for authentication. If unset it
+-- attempts to use credentials found by <code>mysql-brute</code> or
+-- <code>mysql-empty-password</code>.
+-- @args mysqlpass The password to use for authentication. If unset it
+-- attempts to use credentials found by <code>mysql-brute</code> or
+-- <code>mysql-empty-password</code>.
+--
+-- @output
+-- 3306/tcp open  mysql
+-- | mysql-users:
+-- |   test
+-- |   root
+-- |   test2
+-- |   album
+-- |   debian-sys-maint
+-- |   horde
+-- |   mediatomb
+-- |_  squeezecenter
+
+
+author = "Patrik Karlsson"
+license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+categories = {"auth", "intrusive"}
+
+
+dependencies = {"mysql-brute", "mysql-empty-password"}
+
+-- Version 0.1
+-- Created 01/23/2010 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
+
+portrule = shortport.port_or_service(3306, "mysql")
+
+action = function( host, port )
+
+  local socket = nmap.new_socket()
+  local catch = function() socket:close() end
+  local try = nmap.new_try(catch)
+  local result, response = {}, nil
+  local users = {}
+  local nmap_args = nmap.registry.args
+  local status, rows
+
+  -- set a reasonable timeout value
+  socket:set_timeout(5000)
+
+  -- first, let's see if the script has any credentials as arguments?
+  if nmap_args.mysqluser then
+    users[nmap_args.mysqluser] = nmap_args.mysqlpass or ""
+  -- next, let's see if mysql-brute or mysql-empty-password brought us anything
+  elseif nmap.registry.mysqlusers then
+    -- do we have root credentials?
+    if nmap.registry.mysqlusers['root'] then
+      users['root'] = nmap.registry.mysqlusers['root']
+    else
+      -- we didn't have root, so let's make sure we loop over them all
+      users = nmap.registry.mysqlusers
+    end
+  -- last, no dice, we don't have any credentials at all
+  else
+    stdnse.debug1("No credentials supplied, aborting ...")
+    return
+  end
+
+  --
+  -- Iterates over credentials, breaks once it successfully receives results
+  --
+  for username, password in pairs(users) do
+
+    try( socket:connect(host, port) )
+
+    response = try( mysql.receiveGreeting( socket ) )
+    status, response = mysql.loginRequest( socket, { authversion = "post41", charset = response.charset }, username, password, response.salt )
+
+    if status and response.errorcode == 0 then
+      status, rows = mysql.sqlQuery( socket, "SELECT DISTINCT user FROM mysql.user" )
+      if status then
+        result = mysql.formatResultset(rows, { noheaders = true })
+      end
+    end
+    socket:close()
+  end
+
+  return stdnse.format_output(true, result)
+
+end