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8bd71aaf43
I made every script follow a standard form: it starts with the id, followed by the description. The description is contained in [[ ]] delimiters. The description is in the global description variable, not in a LuaDoc comment. Other LuaDoc information such as @args and @usage follows the description in a comment. The first paragraph of each description is a a short summary of what the script does. More detailed information, if any, is given in following paragraphs. I also improved some wording and formatting in a few cases.
87 lines
2.2 KiB
Lua
87 lines
2.2 KiB
Lua
id = "OS from SMB"
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description = [[
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Attempts to determine the operating system over the SMB protocol (ports 445 and
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139).
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\n\n
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See nselib/smb.lua for more information on this protocol.
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]]
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---
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--@usage
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-- nmap --script smb-os-discovery.nse -p445 127.0.0.1\n
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-- sudo nmap -sU -sS --script smb-os-discovery.nse -p U:137,T:139 127.0.0.1
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--
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--@output
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-- | OS from SMB: Windows 2000\n
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-- | LAN Manager: Windows 2000 LAN Manager\n
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-- | Name: WORKGROUP\TEST1\n
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-- |_ System time: 2008-09-09 20:55:55 UTC-5\n
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--
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-----------------------------------------------------------------------
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author = "Ron Bowes"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"default", "discovery", "safe"}
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require 'smb'
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require 'stdnse'
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--- Check whether or not this script should be run.
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hostrule = function(host)
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local port = smb.get_port(host)
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if(port == nil) then
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return false
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else
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return true
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end
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end
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--- Converts numbered Windows versions (5.0, 5.1) to the names (Windows 2000, Windows XP).
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--@param os The name of the OS
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--@return The actual name of the OS (or the same as the 'os' parameter)
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function get_windows_version(os)
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if(os == "Windows 5.0") then
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return "Windows 2000"
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elseif(os == "Windows 5.1")then
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return "Windows XP"
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end
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return os
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end
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action = function(host)
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-- Start up SMB
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status, socket = smb.start(host)
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if(status == false) then
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return "Error: " .. socket
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end
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-- Negotiate protocol
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status, negotiate_result = smb.negotiate_protocol(socket)
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if(status == false) then
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stdnse.print_debug(2, "Negotiate session failed")
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smb.stop(socket)
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return "Error: " .. negotiate_result
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end
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-- Start a session
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status, session_result = smb.start_session(socket, "", negotiate_result['session_key'], negotiate_result['capabilities'])
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if(status == false) then
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smb.stop(socket)
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return "Error: " .. session_result
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end
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-- Kill SMB
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smb.stop(socket, session_result['uid'])
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return string.format("%s\nLAN Manager: %s\nName: %s\\%s\nSystem time: %s %s\n", get_windows_version(session_result['os']), session_result['lanmanager'], negotiate_result['domain'], negotiate_result['server'], negotiate_result['date'], negotiate_result['timezone_str'])
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end
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