exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Packet Storm Advisory 2013-0903-1 - Apple Safari Heap Buffer Overflow

Packet Storm Advisory 2013-0903-1 - Apple Safari Heap Buffer Overflow
Posted Sep 4, 2013
Authored by Vitaliy Toropov | Site packetstormsecurity.com

A heap memory buffer overflow vulnerability exists within the WebKit's JavaScriptCore JSArray::sort(...) method. This method accepts the user-defined JavaScript function and calls it from the native code to compare array items. If this compare function reduces array length, then the trailing array items will be written outside the "m_storage->m_vector[]" buffer, which leads to the heap memory corruption. This finding was purchased through the Packet Storm Bug Bounty program.

tags | advisory, overflow, arbitrary, javascript, code execution, bug bounty, packet storm
systems | apple, osx, iphone, ios
advisories | CVE-2012-3748
SHA-256 | 84bd76ba4dce1e485a3431a2c7bbd07c262e86f184ca05e0931fac224f9ab746

Packet Storm Advisory 2013-0903-1 - Apple Safari Heap Buffer Overflow

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

+------------------------------------------------------------------------------+
| Packet Storm Advisory 2013-0903-1 |
| http://packetstormsecurity.com/ |
+------------------------------------------------------------------------------+
| Title: Apple Safari Heap Buffer Overflow |
+--------------------+---------------------------------------------------------+
| Release Date | 2013/09/03 |
| Advisory Contact | Packet Storm (advisories@packetstormsecurity.com) |
| Researcher | Vitaliy Toropov |
+--------------------+---------------------------------------------------------+
| System Affected | Apple Safari |
| Versions Affected | 6.0.1 for iOS 6.0 and OS X 10.7/8, possibly earlier |
| Related Advisory | APPLE-SA-2012-11-01-2 |
| Related CVE Number | CVE-2012-3748 |
| Vendor Patched | 2012/11/01 |
| Classification | 1-day |
+--------------------+---------------------------------------------------------+

+----------+
| OVERVIEW |
+----------+

The release of this advisory provides exploitation details in relation to a
known patched vulnerability in Apple Safari. These details were obtained
through the Packet Storm Bug Bounty program and are being released to the
community.

+------------------------------------------------------------------------------+

+---------+
| DETAILS |
+---------+

The heap memory buffer overflow vulnerability exists within the WebKit's
JavaScriptCore JSArray::sort(...) method. This method accepts the user-defined
JavaScript function and calls it from the native code to compare array items.
If this compare function reduces array length, then the trailing array items
will be written outside the "m_storage->m_vector[]" buffer, which leads to the
heap memory corruption.

The exploit for this vulnerability is a JavaScript code which shows how to
use it for memory corruption of internal JS objects (Unit32Array and etc.)
and subsequent arbitrary code execution (custom ARM/x64 payloads can be pasted
into the JS code).

+------------------------------------------------------------------------------+

+------------------+
| PROOF OF CONCEPT |
+------------------+

The full exploit code is available here:
http://packetstormsecurity.com/files/123088/

+------------------------------------------------------------------------------+

+---------------+
| RELATED LINKS |
+---------------+

http://lists.apple.com/archives/security-announce/2012/Nov/msg00001.html
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-3748

+------------------------------------------------------------------------------+


+----------------+
| SHAMELESS PLUG |
+----------------+

The Packet Storm Bug Bounty program gives researchers the ability to profit
from their discoveries. You can get paid thousands of dollars for one day
and zero day exploits. Get involved by contacting us at
getpaid@packetstormsecurity.com or visit the bug bounty page at:

http://packetstormsecurity.com/bugbounty/


-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)

iEYEARECAAYFAlImrisACgkQrM7A8W0gTbHnIwCfR6vCe/+YjbxYoeHaErbHYDsN
bC0An34R0Am9RemKiIDnoa+hD3pT+M0y
=VXyD
-----END PGP SIGNATURE-----
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close