108 lines
4.1 KiB
Lua
108 lines
4.1 KiB
Lua
local mssql = require "mssql"
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local stdnse = require "stdnse"
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local string = require "string"
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local table = require "table"
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-- -*- mode: lua -*-
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-- vim: set filetype=lua :
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description = [[
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Runs a query against Microsoft SQL Server (ms-sql).
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SQL Server credentials required: Yes (use <code>ms-sql-brute</code>, <code>ms-sql-empty-password</code>
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and/or <code>mssql.username</code> & <code>mssql.password</code>)
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Run criteria:
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* Host script: Will run if the <code>mssql.instance-all</code>, <code>mssql.instance-name</code>
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or <code>mssql.instance-port</code> script arguments are used (see mssql.lua).
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* Port script: Will run against any services identified as SQL Servers, but only
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if the <code>mssql.instance-all</code>, <code>mssql.instance-name</code>
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and <code>mssql.instance-port</code> script arguments are NOT used.
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NOTE: Communication with instances via named pipes depends on the <code>smb</code>
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library. To communicate with (and possibly to discover) instances via named pipes,
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the host must have at least one SMB port (e.g. TCP 445) that was scanned and
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found to be open. Additionally, named pipe connections may require Windows
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authentication to connect to the Windows host (via SMB) in addition to the
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authentication required to connect to the SQL Server instances itself. See the
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documentation and arguments for the <code>smb</code> library for more information.
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NOTE: By default, the ms-sql-* scripts may attempt to connect to and communicate
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with ports that were not included in the port list for the Nmap scan. This can
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be disabled using the <code>mssql.scanned-ports-only</code> script argument.
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]]
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---
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-- @usage
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-- nmap -p 1433 --script ms-sql-query --script-args mssql.username=sa,mssql.password=sa,ms-sql-query.query="SELECT * FROM master..syslogins" <host>
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--
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-- @args ms-sql-query.query The query to run against the server.
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-- (default: SELECT @@version version)
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-- @args mssql.database Database to connect to (default: tempdb)
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--
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-- @output
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-- | ms-sql-query:
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-- | [192.168.100.25\MSSQLSERVER]
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-- | Query: SELECT @@version version
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-- | version
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-- | =======
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-- | Microsoft SQL Server 2005 - 9.00.3068.00 (Intel X86)
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-- | Feb 26 2008 18:15:01
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-- | Copyright (c) 1988-2005 Microsoft Corporation
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-- |_ Express Edition on Windows NT 5.2 (Build 3790: Service Pack 2)
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--
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-- Created 01/17/2010 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
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-- Revised 02/01/2011 - v0.2 - Added ability to run against all instances on a host;
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-- added compatibility with changes in mssql.lua (Chris Woodbury)
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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 = {"discovery", "safe"}
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dependencies = {"broadcast-ms-sql-discover", "ms-sql-brute", "ms-sql-empty-password"}
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---
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local function process_instance( instance )
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local status, result
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-- the tempdb should be a safe guess, anyway the library is set up
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-- to continue even if the DB is not accessible to the user
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-- TODO: consider renaming this arg to ms-sql-query.database
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local database = stdnse.get_script_args( 'mssql.database' ) or "tempdb"
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local query = stdnse.get_script_args( {'ms-sql-query.query', 'mssql-query.query' } ) or "SELECT @@version version"
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local helper = mssql.Helper:new()
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status, result = helper:ConnectEx( instance )
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if status then
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status, result = helper:LoginEx( instance, database )
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if ( not(status) ) then result = "ERROR: " .. result end
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end
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if status then
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status, result = helper:Query( query )
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if ( not(status) ) then result = "ERROR: " .. result end
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end
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helper:Disconnect()
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if status then
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result = mssql.Util.FormatOutputTable( result, true )
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result["name"] = string.format( "Query: %s", query )
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end
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return result
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end
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local do_action
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do_action, portrule, hostrule = mssql.Helper.InitScript(process_instance)
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action = function(...)
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local scriptOutput = do_action(...)
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if ( not( stdnse.get_script_args( {'ms-sql-query.query', 'mssql-query.query' } ) ) ) then
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table.insert(scriptOutput, 1, "(Use --script-args=ms-sql-query.query='<QUERY>' to change query.)")
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end
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return stdnse.format_output( true, scriptOutput )
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end
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