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SonicWALL Global Security Client Privilege Escalation

SonicWALL Global Security Client Privilege Escalation
Posted May 27, 2009
Authored by lofi42 | Site sec-consult.com

SEC Consult Security Advisory 20090525-2 - The SonicWALL Global Security Client version 1.0.0.15 suffers from a local privilege escalation vulnerability.

tags | exploit, local
SHA-256 | a249f7b5b6c96e7e73537b527e46de221df15b9ac124b216b83d675ced67349b

SonicWALL Global Security Client Privilege Escalation

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SEC Consult Security Advisory < 20090525-2 >
==========================================================================
title: SonicWALL Global Security Client Local Privilege
Escalation Vulnerability
program: SonicWALL Global Security Client
vulnerable version: 1.0.0.15 and possibly other versions
homepage: http://www.sonicwall.com
found: October 2006
by: lofi42
permanent link: https://www.sec-consult.com/advisories_e.html#a56
==========================================================================

Vendor description:
-------------------

The SonicWALL Global Security Client offers IT professionals the
capability to manage a mobile user’s online access, based upon corporate
policies, in order to ensure optimal security of the network and
maximize network resources. Instant messaging, high-risk Web sites and
network file access can all be allowed or disallowed as security and
productivity concerns dictate.

[source:
http://www.sonicwall.com/downloads/DS_GlobalSecurityClient_A4.pdf]


Vulnerability overview:
-----------------------

Local exploitation of a design error in SonicWALLs Global Security
Client could allow attackers to obtain increased privileges.


Vulnerability description:
--------------------------

The problem specifically exists because SYSTEM privileges are not
dropped when accessing the GSC properties from the System Tray applet.
The vulnerability can be exploited by right-clicking the System Tray
icon, choosing "Log", right click "Event Viewer", "Open Log File...".
The opened file selected can be abused by navigating to C:\WINDOWS
\SYSTEM32\, right-clicking cmd.exe, then selecting "Open"; doing so
spawns a command shell with SYSTEM privileges.


Proof of concept:
-----------------

This vulnerability can be exploited without any special exploit code.


Vendor contact timeline:
------------------------

2006: Vulnerability found
2006.10.25: Vulnerability first reported to vendor
2009.02.17: Vulnerability reported to vendor again
2009.03.16: Request for status update
2009.04.21: Request for status update
2009.05.25: Public Release


Patch:
------

SEC Consult was not able to get any vendor feedback on this issue. We
are currently not aware of a patch or workaround.


--
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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 SEC Consult Vulnerability Lab / @2009
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