Twenty Year Anniversary

Symantec Encryption Desktop And Endpoint Encryption Local Privilege Escalation

Symantec Encryption Desktop And Endpoint Encryption Local Privilege Escalation
Posted Dec 1, 2017
Authored by Kyriakos Economou

Vulnerabilities in Symantec Encryption Desktop and Endpoint Encryption allow an attacker to attain arbitrary hard disk read and write access at sector level, and subsequently infect the target and gain low level persistence (MBR/VBR). They also allow the attacker to execute code in the context of the built-in SYSTEM user account, without requiring a reboot.

tags | advisory, arbitrary, vulnerability
MD5 | 752b5f20f45e330229cf021d93af510f

Symantec Encryption Desktop And Endpoint Encryption Local Privilege Escalation

Change Mirror Download
Note: These vulnerabilities remain unpatched at the point of 
publication. We have been working with Symantec to try and help them to
fix this since our initial private disclosure in July 2017 (full
timeline at the end of this article), however no patch has yet been
released. Consequently, we are at the point of publishing the findings
publicly. We will continue to work with Symantec to help them to
produce an effective patch. CVE numbers to follow.

In this article we discuss various approaches to exploiting a
vulnerability in a kernel driver, PGPwded.sys, which is part of Symantec
Encryption Desktop [1]. These vulnerabilities allow an attacker to
attain arbitrary hard disk read and write access at sector level, and
subsequently infect the target and gain low level persistence (MBR/VBR).
They also allow the attacker to execute code in the context of the
built-in SYSTEM user account, without requiring a reboot.

Since many of the exploitation techniques that we come across rely on
memory corruption, we thought that demonstrating exploitation of this
type of flaw would be interesting and informative.

We will provide a short overview of the discovery and nature of the
vulnerability. We will then discuss how access control to file and
directory objects is enforced by NTFS, attack methods, problems,
possible solutions to complete the exploit, and their limitations.

Read more here:
https://labs.nettitude.com/blog/symantec-encryption-desktop-local-privilege-escalation-exploiting-an-arbitrary-hard-disk-read-write-vulnerability-over-ntfs/

Cheers,
kyREcon


Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

Want To Donate?


Bitcoin: 18PFeCVLwpmaBuQqd5xAYZ8bZdvbyEWMmU

File Archive:

April 2018

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