Twenty Year Anniversary

Packet Storm Advisory 2014-1204-1 - Offset2lib: Bypassing Full ASLR On 64bit Linux

Packet Storm Advisory 2014-1204-1 - Offset2lib: Bypassing Full ASLR On 64bit Linux
Posted Dec 5, 2014
Authored by Hector Marco, Ismael Ripoll | Site packetstormsecurity.com

The release of this advisory provides exploitation details in relation a weakness in the Linux ASLR implementation. The problem appears when the executable is PIE compiled and it has an address leak belonging to the executable. These details were obtained through the Packet Storm Bug Bounty program and are being released to the community.

tags | advisory, bug bounty, packet storm
systems | linux
MD5 | a5d4f2cb712163a7ebbd72e95f1856ec

Packet Storm Advisory 2014-1204-1 - Offset2lib: Bypassing Full ASLR On 64bit Linux

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

+------------------------------------------------------------------------------+
| Packet Storm Advisory 2014-1204-1 |
| http://packetstormsecurity.com/ |
+------------------------------------------------------------------------------+
| Title: Offset2lib: Bypassing Full ASLR On 64bit Linux |
+--------------------+---------------------------------------------------------+
| Release Date | 2014/12/04 |
| Advisory Contact | Packet Storm (advisories@packetstormsecurity.com) |
| Researchers | Hector Marco and Ismael Ripoll |
+--------------------+---------------------------------------------------------+
| System Affected | 64 bit PIE Linux |
| Classification | 1-day |
+--------------------+---------------------------------------------------------+

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

The release of this advisory provides exploitation details in relation
a weakness in the Linux ASLR implementation. The problem appears when
the executable is PIE compiled and it has an address leak belonging to
the executable.

These details were obtained through the Packet Storm Bug Bounty program
and are being released to the community.

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

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

An attacker is able to de-randomize all mmapped areas (libraries, mapped files, etc.)
by knowing only an address belonging to the application and the offset2lib value.

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

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

The proof of concept exploit code is available here:
http://packetstormsecurity.com/files/129398

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

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

http://cybersecurity.upv.es/attacks/offset2lib/offset2lib.html

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


+----------------+
| 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 v1.4.11 (GNU/Linux)

iEYEARECAAYFAlSBA04ACgkQrM7A8W0gTbG0jwCdH5CHOIDO9ELRcrPhQmf5FF4z
TgQAn2zuwadnWdMueC8gUQPT5gCmrQyp
=iegV
-----END PGP SIGNATURE-----

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

November 2018

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2018 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close