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64 lines
1.1 KiB
Lua
64 lines
1.1 KiB
Lua
id="RealVNC Authentication Bypass (CVE-2006-2369)"
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description="Checks to see if the VNC Server is vulnerable to the RealVNC authentication bypass."
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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 = {"backdoor"}
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portrule = function(host, port)
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if (port.number == 5900
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or port.service == "vnc")
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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 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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status, result = socket:receive_lines(1)
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if (result == "TIMEOUT") then
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socket:close()
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return
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end
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socket:send("RFB 003.008\n")
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status, result = socket:receive_bytes(2)
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if (result == "TIMEOUT") then
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socket:close()
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return
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end
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if (result ~= "\001\002") then
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socket:close()
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return
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end
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socket:send("\001")
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status, result = socket:receive_bytes(4)
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if (result == "TIMEOUT") then
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socket:close()
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return
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end
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if (result ~= "\000\000\000\000") 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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return "Vulnerable"
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end
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