SYM06-022
October 23, 2006
Symantec Device Driver Elevation of Privilege

Revision History
November 9, 2006: Minor update to clarify the affected versions of SAV 8.1

Risk Impact
Medium

RemoteNo
LocalYes
Authentication RequiredYes
Exploit publicly availableNo

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
ProductVersionSolution
Symantec AntiVirus Corporate Edition8.1 all versions earlier than the solution8.1.1 MR9
https://fileconnect.symantec.com/
Symantec AntiVirus Corporate Edition9.0.3 and earlier 9.0.4 MR4 build 1000 or later
https://fileconnect.symantec.com/
Symantec Client Security1.11.1.1 MR9 Build 393
https://fileconnect.symantec.com/
Symantec Client Security2.0.3 and earlier2.0.4 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
ProductVersionBuild
Symantec AntiVirus Corporate Edition10.xall
Symantec AntiVirus Corporate Edition9.0.4 and laterall
Symantec Client Security3.xall
Norton AntiVirus 2005 and laterall
Norton Internet Security2005 and laterall
Norton System Works2005 and laterall

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


Initial Post on: Monday, 23-Oct-06 10:30:00
Last modified on: