what you don't know can hurt you

F5 FirePass SSL VPN 7.0.0 HF-70-6 Local File Inclusion

F5 FirePass SSL VPN 7.0.0 HF-70-6 Local File Inclusion
Posted Dec 4, 2012
Authored by S. Viehbock | Site sec-consult.com

F5 FirePass SSL VPN versions 7.0.0 HF-70-6 and below suffer from an unauthenticated local file inclusion vulnerability.

tags | exploit, local, file inclusion
MD5 | 678d1317af85b3a13c477ac95e5a1cf1

F5 FirePass SSL VPN 7.0.0 HF-70-6 Local File Inclusion

Change Mirror Download
SEC Consult Vulnerability Lab Security Advisory < 20121203-0 >
=======================================================================
title: Unauthenticated local file inclusion
product: F5 FirePass SSL VPN
vulnerable version: <= 7.0.0 HF-70-6
fixed version: 7.0.0 HF-70-7
impact: Critical
homepage: http://www.f5.com
found: 2012-06-01
by: S. Viehböck
SEC Consult Vulnerability Lab
https://www.sec-consult.com
=======================================================================

Vendor/product description:
-----------------------------
"The FirePass SSL VPN" available as an appliance and in a Virtual
Edition provide security, flexibility, and ease of use. It grants access to
corporate applications using a technology that everyone understands: a web
browser. Users can have secure access from anywhere they have an Internet
connection, while FirePass ensures that connected computers are fully patched
and protected."

"FirePass provides robust, secure SSL VPN remote access to business
applications from a wide range of client devices, including Apple iPhone and
Windows Mobile devices. Using full-tunnel SSL technology and client access
policies defined by system administrators, remote clients can log on to
corporate business applications under pre-defined access permissions and
client directory control."

URL: http://www.f5.com/products/firepass/


Vulnerability overview/description:
-----------------------------------
Due to insufficient input validation, an unauthenticated attacker can disclose
arbitrary local files with the privileges of the webserver. This includes the
user/administrator database. As the attacker-controlled path is passed to the
PHP include() function, code execution is also possible.
Furthermore, the path is then passed to the unlink() function and therefore can
be used to delete arbitrary files in the filesystem which causes denial of
service.
As opposed to some information on the Internet (e.g.
https://twitter.com/FirePassHF/status/218886584672587776), it is not necessary
to have Citrix functionality enabled in order to exploit this vulnerability.


Proof of concept:
-----------------
The flaw exists in the CitrixAuth.php script in the parameter "sessionId".

An attacker can traverse directories with '../' and terminate the path with a
NULL byte.

The following exploit shows how files can be extracted from the file system:

POST /CitrixAuth.php HTTP/1.1
Host: hostname
Content-Type: application/none
Content-Length: 68

<sessionId>../../../../../etc/passwd </sessionId>
-> <- NULL byte


Vulnerable / tested versions:
-----------------------------
The vulnerability has been verified to exist in the Firepass SSL VPN version
7.0.0, which was the most recent version at the time of discovery.


Vendor contact timeline:
------------------------
2012-06-05: Contacting vendor security team via email.
2012-06-07: Response from vendor.
2012-06-12: Coordination call with vendor.
2012-06-14: Sent proof of concept exploit via encrypted channel.
2012 June: Vendor releases HF-388207-1 and informs that solution (=advisory)
will be published soon.
2012-08-22: Requesting status of solution.
2012-08-22: Vendor responds that solution will be published soon.
2012-10-23: Requesting status of solution.
2012-10-23: Vendor responds that something went wrong and they will look
into it.
2012-11-07: Requesting status of solution.
2012-11-29: Vendor publishes SOL14046.
2012-12-03: Public release of SEC Consult advisory.



Solution:
---------
Apply HF-70-7 or HF-388207-1. For detailed information see:
http://support.f5.com/kb/en-us/solutions/public/14000/000/sol14046.html

Patch information is also available at:
http://support.f5.com/kb/en-us/solutions/public/13000/800/sol13826.html


Workaround:
-----------
No workaround available.


Advisory URL:
--------------
https://www.sec-consult.com/en/Vulnerability-Lab/Advisories.htm


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SEC Consult Unternehmensberatung GmbH

Office Vienna
Mooslackengasse 17
A-1190 Vienna
Austria

Tel.: +43 / 1 / 890 30 43 - 0
Fax.: +43 / 1 / 890 30 43 - 25
Mail: research at sec-consult dot com
www.sec-consult.com


EOF S. Viehböck / @2012
Login or Register to add favorites

File Archive:

September 2021

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close