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879b33ad75
better example of a version-detection script. I made a few small changes to the script: shortening long lines and removing some non-functional ones. See http://seclists.org/nmap-dev/2008/q4/0311.html.
59 lines
1.2 KiB
Lua
59 lines
1.2 KiB
Lua
id = "Skype v2"
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description = [[
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Detects the Skype version 2 service.
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]]
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author = "Brandon Enright <bmenrigh@ucsd.edu>"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"version"}
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require "comm"
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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 status, result = comm.exchange(host, port,
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"GET / HTTP/1.0\r\n\r\n", {bytes=26, proto=port.protocol})
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if (not status) then
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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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return
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end
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-- So far so good, now see if we get random data for another request
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status, result = comm.exchange(host, port,
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"random data\r\n\r\n", {bytes=15, proto=port.protocol})
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if (not status) then
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return
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end
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if string.match(result, "[^%s!-~].*[^%s!-~].*[^%s!-~]") then
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-- Detected
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port.version.name = "skype2"
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port.version.product = "Skype"
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nmap.set_port_version(host, port, "hardmatched")
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return
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end
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return
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end
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