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Bulletins   Conferences   News & Media   Services   Web Log   Site Map   Site Help   Member login Login »  Become a member »   Home » Security Bul... » By Operating... » Windows (all) » Windows 7 » ESB-2010.0513 - ALERT [Win] Microsoft Internet Explo...   ESB-2010.0513 - ALERT [Win] Microsoft Internet Explorer: Multiple vulnerabilities Date: 09 June 2010 References: ASB-2010.0042.2   Click here for printable version -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2010.0513 Cumulative Security Update for Internet Explorer 9 June 2010 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Internet Explorer 5.01 Service Pack 4 Microsoft Internet Explorer 6 Microsoft Internet Explorer 6 Service Pack 1 Microsoft Internet Explorer 7 Microsoft Internet Explorer 8 Publisher: Microsoft Operating System: Windows 2000 Windows XP Windows Vista Windows 7 Windows Server 2003 Windows Server 2008 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Access Confidential Data -- Remote with User Interaction Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2010-1262 CVE-2010-1261 CVE-2010-1260 CVE-2010-1259 CVE-2010-1257 CVE-2010-0255 Reference: ASB-2010.0042.2 Original Bulletin: http://www.microsoft.com/technet/security/Bulletin/MS10-035.mspx - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS10-035 - Critical Cumulative Security Update for Internet Explorer (982381) Version: 1.0 General Information Executive Summary This security update resolves five privately reported vulnerabilities and one publicly disclosed vulnerability in Internet Explorer. The most severe vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. This security update is rated Critical for Internet Explorer 6 Service Pack 1 on Microsoft Windows 2000 Service Pack 4; Critical for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows clients; and Moderate for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows servers. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses these vulnerabilities by modifying the way that Internet Explorer handles objects in memory, HTML sanitization, and cached content. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection under the next section, Vulnerability Information. This security update also addresses the vulnerability first described in Microsoft Security Advisory 980088. Affected Software Microsoft Internet Explorer 5.01 Service Pack 4 Microsoft Internet Explorer 6 Microsoft Internet Explorer 6 Service Pack 1 Microsoft Internet Explorer 7 Microsoft Internet Explorer 8 Vulnerability Information Cross-Domain Information Disclosure Vulnerability - CVE-2010-0255 An information disclosure vulnerability exists in the way that Internet Explorer caches data and incorrectly allows the cached content to be called, potentially bypassing Internet Explorer domain restriction. An attacker could exploit the vulnerability by constructing a specially crafted Web page that could allow information disclosure if a user viewed the Web page. An attacker who successfully exploited this vulnerability could view content from the local computer or a browser window in another domain or Internet Explorer zone. toStaticHTML Information Disclosure Vulnerability - CVE-2010-1257 An information disclosure vulnerability exists in the way that Internet Explorer handles content using specific strings when sanitizing HTML. An attacker could exploit the vulnerability by constructing a specially crafted Web page that could allow information disclosure if a user viewed the Web page. An attacker who successfully exploited this vulnerability could inflict cross-site scripting on the user, allowing the attacker to execute script in the user's security context against a site that is using the toStaticHTML API. Uninitialized Memory Corruption Vulnerability - CVE-2010-1259 A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has not been correctly initialized or has been deleted. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. HTML Element Memory Corruption Vulnerability - CVE-2010-1260 A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has not been correctly initialized or has been deleted in the IE8 Developer Toolbar. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Uninitialized Memory Corruption Vulnerability - CVE-2010-1261 A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has not been correctly initialized or has been deleted in the IE8 Developer Toolbar. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Memory Corruption Vulnerability - CVE-2010-1262 A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has not been correctly initialized or has been deleted. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. - --------------------------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. 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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 iD8DBQFMDsUa/iFOrG6YcBERAtpKAJ9UQi8kMX3wPVK1fuoZwKuGaNfdhgCfVKd2 94oJimi9SPQOGmt8HWkotnc= =3BkX -----END PGP SIGNATURE-----

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