From: Russ Cooper (Russ.CooperTRUSECURE.CA)
Date: Tue Feb 08 2005 - 12:43:50 CST

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Microsoft Security Bulletin MS05-014:
Cumulative Security Update for Internet Explorer (867282)

Bulletin URL:
<http://www.microsoft.com/technet/security/bulletin/MS05-014.mspx>

Version Number: 1.0
Issued Date: Tuesday, February 08, 2005
Impact of Vulnerability: Remote Code Execution
Maximum Severity Rating: Critical
Patch(es) Replaced: This update replaces the update that is included with Microsoft Security Bulletin MS04-038. That update is also a cumulative update. This update also replaces the update that is included with Microsoft Security Bulletin MS04-040. That update is also a cumulative update for Internet Explorer 6 Service Pack 1.
Caveats: Microsoft Knowledge Base Article 867282 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues. For more information, see Microsoft Knowledge Base Article 867282. This update does include hotfixes that have been released since the release of MS04-004 or MS04-025 but they will only be installed on systems that need them. Customers who have received hotfixes from Microsoft or from their support providers since the release of MS04-004 or MS04-025 should review the FAQ 'I have received a hotfix from Microsoft or my support provider since the release of MS04-004. Is that hotfix included in this security update?' in the FAQ section for this update to determine how to ensure that the necessary hotfixes are installed. Microsoft Knowledge Base Article 867282 also documents this in more detail. Important: The update for the 'Drag-and-Drop Vulnerability' (CAN-2005-0053) comes in two parts. It is addressed in part in this security bulletin. This security bulletin, together with security bulletin MS05-008, makes up the update for CAN-2005-0053. These updates do not have to be installed in any particular order. However, we recommend that you install both updates.

Tested Software:
Affected Software:
------------------
* Microsoft Windows 2000 Service Pack 3 and Microsoft Windows 2000 Service Pack 4
* Microsoft Windows XP Service Pack 1 and Microsoft Windows XP Service Pack 2
* Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium)
* Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium)
* Microsoft Windows Server 2003
* Microsoft Windows Server 2003 for Itanium-based Systems
* Microsoft Windows 98, Microsoft Windows 98 Second Edition (SE), and Microsoft Windows Millennium Edition (ME) - Review the FAQ section of this bulletin for details about these operating systems.
* Internet Explorer 6 for Windows Server 2003 (all versions) and for Windows XP 64-Bit Edition, Version 2003

Affected Components:
--------------------
* Internet Explorer 5.01 Service Pack 3 (SP3) on Windows 2000 Service Pack 3:
<http://tinyurl.com/6vyjk>
* Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4: Internet Explorer 5.5 Service Pack 2 on Microsoft Windows Millennium Edition: - Review the FAQ section of this bulletin for details about this version.
<http://tinyurl.com/3o954>
* Internet Explorer 6 Service Pack 1 on Microsoft Windows 2000 Service Pack 3, on Microsoft Windows 2000 Service Pack 4, or on Microsoft Windows XP Service Pack 1: Internet Explorer 6 Service Pack 1 on Microsoft Windows 98, on Microsoft Windows 98 SE, or on Microsoft Windows Millennium Edition: - Review the FAQ section of this bulletin for details about this version.
<http://tinyurl.com/5gku6>
* Internet Explorer 6 for Windows XP Service Pack 1 (64-Bit Edition):
<http://tinyurl.com/4kfy5>
* Internet Explorer 6 for Windows Server 2003:
<http://tinyurl.com/6cqq7>
* Internet Explorer 6 for Windows Server 2003 64-Bit Edition and Windows XP 64-Bit Edition Version 2003:
<http://tinyurl.com/45sjl>
* Internet Explorer 6 for Windows XP Service Pack 2:
<http://tinyurl.com/5v7bn>

Technical Description:
----------------------
* Drag-and-Drop Vulnerability - CAN-2005-0053 A privilege elevation vulnerability exists in Internet Explorer because of the way that Internet Explorer handles drag-and-drop events. An attacker could exploit the vulnerability by constructing a malicious Web page. This malicious Web page could potentially allow an attacker to save a file on the user's system if a user visited a malicious Web site or viewed a malicious e-mail message. An attacker who successfully exploited this vulnerability could take complete control of an affected system. However, user interaction is required to exploit this vulnerability.

* URL Decoding Zone Spoofing Vulnerability - CAN-2005-0054 A remote code execution vulnerability exists in Internet Explorer because of the way that it handles certain encoded URLs. An attacker could exploit the vulnerability by constructing a malicious URL. This malicious URL could potentially allow remote code execution if a user visited a malicious Web site or viewed a malicious e-mail message. The URL could be made to look like a link to another Web site in an attempt to trick a user into clicking it. An attacker who successfully exploited this vulnerability could take complete control of an affected system. However, significant user interaction is required to exploit this vulnerability.

* DHTML Method Heap Memory Corruption Vulnerability - CAN-2005-0055 A remote code execution vulnerability exists in Internet Explorer because of the way that it handles certain DHTML methods. An attacker could exploit the vulnerability by constructing a malicious Web page. This malicious Web page could potentially allow remote code execution if a user visited a malicious Web site or viewed a malicious e-mail message. An attacker who successfully exploited this vulnerability could take complete control of an affected system. However, user interaction is required to exploit this vulnerability.

* Channel Definition Format (CDF) Cross Domain Vulnerability - CAN-2005-0056: A cross-domain vulnerability exists in Internet Explorer that could allow information disclosure or remote code execution on an affected system. An attacker could exploit the vulnerability by constructing a malicious Web page. The malicious Web page could potentially allow remote code execution if viewed by a user. An attacker who successfully exploited this vulnerability could take complete control of an affected system. However, significant user interaction is required to exploit this vulnerability.

This email is sent to NTBugtraq automagically as a service to my subscribers. (v4.01.1837.24459)

Cheers,
Russ - Senior Scientist - TruSecure Corporation/NTBugtraq Editor

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NTBugtraq Editor's Note:

Most viruses these days use spoofed email addresses. As such, using an Anti-Virus product which automatically notifies the perceived sender of a message it believes is infected may well cause more harm than good. Someone who did not actually send you a virus may receive the notification and scramble their support staff to find an infection which never existed in the first place. Suggest such notifications be disabled by whomever is responsible for your AV, or at least that the idea is considered.
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