ID

VAR-200707-0450

CVE

CVE-2007-3673

TITLE

Symantec AntiVirus Corporate Edition Etc. Symantec symtdi.sys Vulnerability gained in

DESCRIPTION

Symantec symtdi.sys before 7.0.0, as distributed in Symantec AntiVirus Corporate Edition 9 through 10.1 and Client Security 2.0 through 3.1, Norton AntiSpam 2005, and Norton AntiVirus, Internet Security, Personal Firewall, and System Works 2005 and 2006; allows local users to gain privileges via a crafted Interrupt Request Packet (Irp) in an IOCTL 0x83022323 request to \\symTDI\, which results in memory overwrite. Applications running the SYMTDI.SYS device driver are prone to a privilege-escalation vulnerability because the driver fails to adequately sanitize user-supplied input. Local attackers can exploit this issue to execute arbitrary code with SYSTEM-level privileges. A successful exploit will completely compromise affected computers. Failed exploit attempts will likely cause the computer to crash. Symantec AntiVirus is a very popular antivirus solution. instruction. Symantec AntiVirus symtdi.sys Local Privilege Escalation Vulnerability iDefense Security Advisory 07.11.07 http://labs.idefense.com/intelligence/vulnerabilities/ Jul 11, 2007 I. BACKGROUND Symantec has a wide range of Anti-Virus and Internet Security products that are designed to protect users from viruses and other harmful software. More information can be found on the Symantec site at the following URL. http://www.symantec.com/ II. The vulnerability specifically exists due to improper address space validation when the \\symTDI\ device driver processes IOCTL 0x83022323. An attacker can overwrite an arbitrary address, including code segments, with a constant double word value by supplying a specially crafted Irp to the IOCTL handler function. III. ANALYSIS Exploitation allows an attacker to obtain elevated privileges by exploiting a kernel-mode driver. This could allow the attacker to gain complete control of the affected system. Note that since the attacker can only overwrite with a constant double-word value, exploitation is not completely straight forward. However, this does not significantly impact the difficulty of exploitation since code segments can be overwritten within the kernel. IV. DETECTION iDefense confirmed this vulnerability in version 5.5.1.6 of Symantec's symtdi.sys device driver as included with version 10 of Symantec AntiVirus Corporate Edition. Previous versions and related products that contain the affected driver are suspected vulnerable. V. WORKAROUND iDefense is currently unaware of any effective workaround for this issue. VI. VENDOR RESPONSE Symantec has addressed this vulnerability by releasing updated versions of the SymTDI.sys device driver. The updated driver has been made available via LiveUpdate. For more information consult Symantec's advisory at the following URL. http://securityresponse.symantec.com/avcenter/security/Content/2007.07.11d.html VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2007-3673 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 01/10/2007 Initial vendor notification 01/11/2007 Initial vendor response 07/11/2007 Coordinated public disclosure IX. CREDIT This vulnerability was reported to iDefense by Zohiartze Herce. 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. ---------------------------------------------------------------------- Try a new way to discover vulnerabilities that ALREADY EXIST in your IT infrastructure. The Full Featured Secunia Network Software Inspector (NSI) is now available: http://secunia.com/network_software_inspector/ The Secunia NSI enables you to INSPECT, DISCOVER, and DOCUMENT vulnerabilities in more than 4,000 different Windows applications. Please see the vendor's advisory for details. PROVIDED AND/OR DISCOVERED BY: Zohiartze Herce, reported via iDefense Labs. ORIGINAL ADVISORY: Symantec: http://securityresponse.symantec.com/avcenter/security/Content/2007.07.11d.html iDefense Labs: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=554 ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

input validation

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Zohiartze Herce

SOURCES

LAST UPDATE DATE

2024-11-23T22:09:52.405000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE