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73 lines
1.5 KiB
Lua
73 lines
1.5 KiB
Lua
id="Skype v2"
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description="Determines if remote service is Skype protocol version 2"
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author = "Brandon Enright <bmenrigh@ucsd.edu>"
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license = "See nmaps COPYING for licence"
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categories = {"version"}
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portrule = function(host, port)
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if (port.number == 80 or
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port.number == 443 or
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port.service == nil or
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port.service == "" or
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port.service == "unknown")
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and port.protocol == "tcp"
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and port.state == "open"
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and port.service ~= "http"
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and port.service ~= "ssl/http"
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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 socket = nmap.new_socket()
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local result;
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local status = true
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socket:connect(host.ip, port.number, port.protocol)
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socket:send("GET / HTTP/1.0\r\n\r\n")
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status, result = socket:receive_bytes(26);
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if (not status) then
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socket:close()
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return
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end
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if (result ~= "HTTP/1.0 404 Not Found\r\n\r\n") then
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socket:close()
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return
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end
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socket:close();
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-- So far so good, now see if we get random data for another request
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socket:connect(host.ip, port.number, port.protocol)
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socket:send("random data\r\n\r\n")
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status, result = socket:receive_bytes(15);
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if (not status) then
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socket:close()
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return
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end
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if string.match(result, "[^%s!-~].*[^%s!-~].*[^%s!-~].*[^%s!-~]") then
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socket:close()
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port.version.name = "skype2"
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port.version.confidence = 10
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port.version.fingerprint = nil
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nmap.set_port_version(host, port, "hardmatched")
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return
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-- return "Skype v2 server detected"
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end
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socket:close();
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return
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end
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