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Server : Apache/2.4.18 (Ubuntu) System : Linux canvaswebdesign 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 User : oppastar ( 1041) PHP Version : 7.0.33-0ubuntu0.16.04.15 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Directory : /usr/share/nmap/scripts/ |
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local nmap = require "nmap"
local shortport = require "shortport"
description = [[
Checks if a VNC server is vulnerable to the RealVNC authentication bypass
(CVE-2006-2369).
]]
author = "Brandon Enright"
license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
---
-- @output
-- PORT STATE SERVICE VERSION
-- 5900/tcp open vnc VNC (protocol 3.8)
-- |_realvnc-auth-bypass: Vulnerable
categories = {"auth", "default", "safe"}
portrule = shortport.port_or_service(5900, "vnc")
action = function(host, port)
local socket = nmap.new_socket()
local result
local status = true
socket:connect(host, port)
status, result = socket:receive_lines(1)
if (not status) then
socket:close()
return
end
socket:send("RFB 003.008\n")
status, result = socket:receive_bytes(2)
if (not status or result ~= "\001\002") then
socket:close()
return
end
socket:send("\001")
status, result = socket:receive_bytes(4)
if (not status or result ~= "\000\000\000\000") then
socket:close()
return
end
socket:close()
return "Vulnerable"
end