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
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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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EOF SEC Consult Vulnerability Lab / @2009
