Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0584 -- [Win] Kaspersky Internet Security IOCTL Stack Based Buffer Overflow Vulnerability 5 June 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Kaspersky Internet Security Publisher: iDEFENSE Operating System: Windows Impact: Administrator Compromise Access: Existing Account CVE Names: CVE-2008-1518 Original Bulletin: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=704 - --------------------------BEGIN INCLUDED TEXT-------------------- iDefense Security Advisory 06.04.08 http://labs.idefense.com/intelligence/vulnerabilities/ Jun 04, 2008 I. BACKGROUND Kaspersky Internet Security Suite is a combination of Kaspersky anti-virus, anti-spam, and personal firewall in one product. For more information see the vendor's website at the following URL. http://www.kaspersky.com/ II. DESCRIPTION Local exploitation of a stack-based buffer overflow in Kaspersky Lab's Internet Security could allow an attacker to execute arbitrary code in the context of the kernel. The kl1.sys kernel driver distributed with Internet Security contains a stack-based buffer overflow in the handling of IOCTL 0x800520e8. This issue is caused by a failure to properly perform bounds checks on user-supplied data that is passed to the swprintf function as a source buffer. The destination buffer in this case is a 2,000 element wide-character array. If the source buffer exceeds 2,000 characters, a buffer overflow will occur leading to the execution of arbitrary code. III. ANALYSIS Exploitation of this issue allows an attacker to execute arbitrary code within the kernel. An attacker would need local access to a vulnerable computer to exploit this vulnerability. IV. DETECTION Kasperky Lab's Internet Security version 7.0.1.325 is confirmed to be vulnerable to this issue. Previous versions are also suspected to be vulnerable. V. WORKAROUND iDefense is unaware of any workaround for this issue. VI. VENDOR RESPONSE Kaspersky Lab has addressed this vulnerability by releasing updated anti-virus definition databases. For more information, refer the their article at the following URL. http://www.kaspersky.com/technews?id=203038727 VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2008-1518 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 03/19/2008 Initial vendor notification 03/20/2008 Initial vendor response 06/04/2008 Coordinated public disclosure IX. CREDIT This vulnerability was reported to iDefense by Tobias Klein. 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 © 2008 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBSEdBjSh9+71yA2DNAQKdwgP+PYeYrBhFS6SlUX5JRkBD4d6CUn48M6se fUczCjDMtG07TZsIxxuZMQ7ikgLtFJ1Z1acKofnmIuxWu7uPFyiqonQZ97IYf6rv IVTsxs1ZmQwqoB0G3KUxa4SGnId0WRLz+d3ZVMDZPHGeD1we6jLzpiLC8fFY4uu1 HNEf/x9yO3U= =CVaM -----END PGP SIGNATURE-----