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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.
68 lines
1.4 KiB
Lua
68 lines
1.4 KiB
Lua
id = "Service owner"
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description = [[
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Attempts to find the owner of a scanned port.
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\n\n
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The script makes a connection to the auth port (113) and queries the owner of
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an open port.
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]]
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author = "Diman Todorov <diman.todorov@gmail.com>"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"default", "safe"}
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portrule = function(host, port)
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local auth_port = { number=113, protocol="tcp" }
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local identd = nmap.get_port_state(host, auth_port)
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if
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identd ~= nil
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and identd.state == "open"
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and port.protocol == "tcp"
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and port.state == "open"
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then
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return true
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else
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return false
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end
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end
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action = function(host, port)
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local owner = ""
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local client_ident = nmap.new_socket()
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local client_service = nmap.new_socket()
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local catch = function()
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client_ident:close()
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client_service:close()
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end
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local try = nmap.new_try(catch)
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try(client_ident:connect(host.ip, 113))
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try(client_service:connect(host.ip, port.number))
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local localip, localport, remoteip, remoteport = try(client_service:get_info())
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local request = port.number .. ", " .. localport .. "\n"
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try(client_ident:send(request))
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owner = try(client_ident:receive_lines(1))
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if string.match(owner, "ERROR") then
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owner = nil
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-- owner = "Service owner could not be determined: " .. owner
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else
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owner = string.match(owner, "USERID : .+ : (.+)\n", 1)
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end
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try(client_ident:close())
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try(client_service:close())
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return owner
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end
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