Hello, Can any one help out by providing the way to monitor it through the SIEM tool if this vulnerability is being exploited inside the network. It will be really helpful for me.
Regards, Jatin ________________________________ From: labs-no-reply [mailto:labs-no-re...@ivcp.vrsn.com] Sent: Wed 2/9/2011 12:14 AM To: bugt...@securityfocus.com; vulnwa...@vulnwatch.org; full-disclosure@lists.grok.org.uk Subject: iDefense Security Advisory 02.08.11: Microsoft Windows Picture and Fax Viewer Library iDefense Security Advisory 02.08.11 http://labs.idefense.com/intelligence/vulnerabilities/ Feb 08, 2011 I. BACKGROUND The Windows Picture and Fax Viewer "shimgvw.dll" library is used by Windows Explorer to generate thumbnail previews for media files. II. DESCRIPTION Remote exploitation of a buffer overflow vulnerability in multiple versions of Microsoft Corp.'s Windows could allow attackers to execute arbitrary code on the targeted host. <BR><BR> An integer overflow vulnerability exists in the "shimgvw" library. During the processing of an image within a certain function, a bitmap containing a large "biWidth" value can be used to cause an integer calculation overflow. This condition can lead to the overflow of a heap buffer and may result in the execute arbitrary code on the targeted host. III. ANALYSIS Exploitation could allow attackers to execute arbitrary code on the targeted host under the privileges of the current logged-on user. Successful exploitation would require the attacker to entice his or her victim into viewing a specially-crafted thumbnail leveraging the vulnerability. <BR><BR> Some vectors of attack include e-mail, the browser and network shares. In an e-mail-based attack, the attacker must entice his or her victim into opening or previewing a specially-crafted Office document containing a specially-crafted thumbnail. In a browser-based attack, the victim must simply view a maliciously crafted website. In a network share attack, such as UNC or WebDAV, an attacker would require the victim to simply navigate to the folder containing the crafted thumbnail. IV. DETECTION iDefense has confirmed the existence of this vulnerability in Microsoft Windows XP SP3. A full list of vulnerable Microsoft products can be found in Microsoft Security Bulletin MS11-006. V. WORKAROUND Microsoft has included an automated Microsoft Fix it solution for the Modify the Access Control List (ACL) on shimgvw.dll workaround, which can be found at the following link: http://support.microsoft.com/kb/2483185 VI. VENDOR RESPONSE Microsoft Corp. has released patches which address this issue. Information about downloadable vendor updates can be found by clicking on the URLs shown. http://www.microsoft.com/technet/security/bulletin/ms11-006.mspx VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2011-3970 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 01/12/2011 Initial Vendor Notification 01/12/2011 Initial Vendor Reply 02/08/2011 Coordinated Public Disclosure IX. CREDIT This vulnerability was reported to iDefense by Kobi Pariente and Yaniv Miron. 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 © 2011 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 customerserv...@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. Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com
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