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AUSCERT External Security Bulletin Redistribution
ESB-2007.0128 -- [Win]
Multiple Vendor SupportSoft SmartIssue ActiveX Control
Buffer Overflow Vulnerability
23 February 2007
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AusCERT Security Bulletin Summary
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Product: SupportSoft SmartIssue ActiveX Control
Publisher: iDEFENSE
Operating System: Windows
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2006-6490
Original Bulletin:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=478
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Multiple Vendor SupportSoft SmartIssue ActiveX Control Buffer Overflow
Vulnerability
iDefense Security Advisory 02.22.07
http://labs.idefense.com/intelligence/vulnerabilities/
Feb 22, 2007
I. BACKGROUND
SupportSoft Inc. develops a product called Self-Service Suite which aims to
help end users solve technical problems on their own. Symantec shipped a
SupportSoft Inc. ActiveX control along with Norton Internet Security 2006.
More information about SupportSoft can be found at
http://www.supportsoft.com/ For more information about Symantec and their
Norton product line, visit http://www.symantec.com/ and
http://www.norton.com/ respectively.
II. DESCRIPTION
Remote exploitation of a buffer overflow vulnerability in a SupportSoft
ActiveX control allows attackers to execute arbitrary code in the context
of the current user.
The ActiveX affected control can be identified by the ProgId of
"SPRT.SmartIssue" or the CLSID of "01010e00-5e80-11d8-9e86-0007e96c65ae".
This ActiveX control is marked safe for scripting as it is intended to be
used in a web browser.
When installed with Norton Internet Security (NIS) 2006, the code
responsible for implementing the control can be found in "C:\Program
Files\Common Files\Symantec Shared\tgctlsi.dll".
III. ANALYSIS
Exploitation allows attackers to execute arbitrary code within the context
of the current user.
In order to be successful, the attacker must persuade the victim into
viewing a maliciously crafted web page. This can easily be accomplished by
enticing them into clicking a link via e-mail, an instant messenger, or
other means.
IV. DETECTION
iDefense has confirmed the existence of this vulnerability within version
6.9.545.0 of "tgctlsi.dll" as included with Symantec Corp.'s Norton
Internet Security 2006. Newer versions of Norton Internet Security do not
include this control.
Older versions of this control are suspected to be vulnerable. Other
products utilizing this control should be considered vulnerable.
V. WORKAROUND
iDefense recommends setting the kill bit for this control to prevent the
control from loading when viewing a web page.
VI. VENDOR RESPONSE
Symantec Corp. has addressed this vulnerability in Symantec Security
Advisory SYM07-002. You can view their advisory at
http://www.symantec.com/avcenter/security/Content/2007.02.22.html
US-CERT has released Vulnerability Note VU#441785 pertaining to this issue
as well as related issues within SupportSoft ActiveX controls.
SupportSoft has released updated controls which do not contain the
aforementioned vulnerability. To obtain these controls, visit
http://www.supportsoft.com/support/controls_update.asp
VII. CVE INFORMATION
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2006-6490 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org/), which standardizes names for
security problems.
VIII. DISCLOSURE TIMELINE
10/18/2006 Initial vendor notification
10/18/2006 Initial vendor response
02/22/2007 Coordinated public disclosure
IX. CREDIT
This vulnerability was reported to iDefense by Peter Vreugdenhil.
Get paid for vulnerability research
http://labs.idefense.com/methodology/vulnerability/vcp.php
Free tools, research and upcoming events
http://labs.idefense.com/
X. LEGAL NOTICES
Copyright © 2007 iDefense, Inc.
Permission is granted for the redistribution of this alert electronically.
It may not be edited in any way without the express written consent of
iDefense. If you wish to reprint the whole or any part of this alert in
any other medium other than electronically, please e-mail
customerservice@idefense.com for permission.
Disclaimer: The information in the advisory is believed to be accurate at
the time of publishing based on currently available information. Use of
the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on, this
information.
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