R-024: Symantec Device Driver Elevation of Privilege

Risk Impact
Medium

Remote	No
Local	Yes
Authentication Required	Yes
Exploit publicly available	No

Overview
Symantec was notified of a vulnerability in a device driver which, if successfully exploited, could allow a local attacker to execute arbitrary code with elevated privileges or to crash the system.

Affected Products

Product	Version	Solution
Symantec AntiVirus Corporate Edition	8.1	8.1.1 MR9 https://fileconnect.symantec.com/
Symantec AntiVirus Corporate Edition	9.0.3 and earlier	9.0.4 MR4 build 1000 or later https://fileconnect.symantec.com/
Symantec Client Security	1.1	1.1.1 MR9 Build 393 https://fileconnect.symantec.com/
Symantec Client Security	2.0.3 and earlier	2.0.4 MR4 build 1000 https://fileconnect.symantec.com/

Note:Symantec AntiVirus Corporate Edition 8.1.1 MR9 is available in English and Japanese only. Symantec recommends that SAV Corporate 8.1.1 customers update to the English version of SAV CE 8.1.1, or migrate to a non-vulnerable version of SAV Corporate Edition 9 or 10.

Symantec Platinum Support customers can also download updates from the Platinum Web site.

Unaffected Products

Product	Version	Build
Symantec AntiVirus Corporate Edition	10.x	all
Symantec AntiVirus Corporate Edition	9.0.4 and later	all
Symantec Client Security	3.x	all
Norton AntiVirus	2005 and later	all
Norton Internet Security	2005 and later	all
Norton System Works	2005 and later	all

Details
Boon Seng Lim notified Symantec of a vulnerability in SAVRT.SYS which could allow a malicious user to use the output buffer of DeviceIOControl() to overwrite kernel addresses because the address space of the output buffer was not properly validated. A successful exploit could potentially allow a local attacker to execute code of their choice with elevated privileges, or to crash the system.

Symantec Response
Symantec engineers verified that this issue exists in the products listed in the table above, and have released updates to address currently supported affected products.

Symantec is not aware of any customers impacted by this issue, or of any attempts to exploit the issue.

As a part of normal best practices, Symantec recommends that users keep all application software and operating systems up-to-date with the latest vendor supplied patches.

Credit
Symantec would like to thank Boon Seng Lim for reporting this issue, and working with us on the resolution.

CVE
This issue is a candidate for inclusion in the Common Vulnerabilities and Exposures (CVE) list (http://cve.mitre.org), which standardizes names for security problems. The CVE initiative has assigned CVE-2006-3455 to this issue

Symantec takes the security and proper functionality of its products very seriously. As founding members of the Organization for Internet Safety (OISafety), Symantec follows the principles of responsible disclosure. Symantec also subscribes to the vulnerability guidelines outlined by the National Infrastructure Advisory Council (NIAC). Please contact secure@symantec.com if you feel you have discovered a potential or actual security issue with a Symantec product. A Symantec Product Security team member will contact you regarding your submission.

Symantec has developed a Product Vulnerability Handling Process document outlining the process we follow in addressing suspected vulnerabilities in our products. We support responsible disclosure of all vulnerability information in a timely manner to protect Symantec customers and the security of the Internet as a result of vulnerability. This document is available from the location provided below.

Symantec strongly recommends using encrypted email for reporting vulnerability information to secure@symantec.com. The Symantec Product Security PGP key can be obtained from the location provided below.

Symantec Vulnerability Response Policy

Symantec Product Vulnerability Management PGP Key

Copyright (c) 2006 by Symantec Corp.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

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.

Symantec, Symantec products, Symantec Security Response, and SymSecurity are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.


PROBLEM:	There is a vulnerability in a device driver which, if successfully exploited, could allow a local attacker to execute arbitrary code with elevated privileges or to crash the system.
PLATFORM:	Symantec AntiVirus Corporate Edition 9.0.3 and earlier Symantec Client Security 2.0.3 and earlier
DAMAGE:	A successful exploit could potentially allow a local attacker to execute code of their choice with elevated privileges, or to crash the system.
SOLUTION:	Apply current patches.

VULNERABILITY ASSESSMENT:	The risk is MEDIUM. A local attacker could execute arbitrary code with elevated privileges.

LINKS:
CIAC BULLETIN:	http://www.ciac.org/ciac/bulletins/r-024.shtml
ORIGINAL BULLETIN:	http://securityresponse.symantec.com/avcenter/security/Content/2006.10.23.html
CVE:	CVE-2006-3455

INFORMATION BULLETIN

R-024: Symantec Device Driver Elevation of Privilege

[SYM06-022]