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                                    CERT-Renater

                         Note d'Information No. 2006/VULN557
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DATE                      : 13/12/2006

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running Internet Explorer.

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MS06-072 - Cumulative Security Update for Internet Explorer (925454)

Affected Software:
  - Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4
  - Internet Explorer 6 Service Pack 1 on Windows 2000 Service Pack 4
  - Internet Explorer 6 for Windows XP Service Pack 2
  - Internet Explorer 6 for Windows XP Professional x64 Edition
  - Internet Explorer 6 for Windows Server 2003 and Windows  Server 2003
    Service Pack 1
  - Internet Explorer 6 for Windows Server 2003 for Itanium-based Systems
    and Windows Server 2003 with SP1 for Itanium-based Systems
  - Internet Explorer 6 for Windows Server 2003 x64 Edition

Full MS06-072 Advisory:
  - http://www.microsoft.com/technet/security/Bulletin/MS06-072.mspx

Vulnerability Details

Script Error Handling Memory Corruption Vulnerability
CVE-2006-5579

A remote code execution vulnerability exists in Internet Explorer due to
attempts to access previously freed memory when handling script errors in
certain situations. An attacker could exploit the vulnerability by
constructing a specially crafted Web page. If a user viewed the Web page,
the vulnerability could allow remote code execution. An attacker who
successfully exploited this vulnerability could take complete control of an
affected system.

DHTML Script Function Memory Corruption Vulnerability
CVE-2006-5581

A remote code execution vulnerability exists in the way Internet Explorer
interprets certain DHTML script function calls to incorrectly created
elements. An attacker could exploit the vulnerability by constructing a
specially crafted Web page that could potentially allow remote code execution
if a user viewed the Web page. An attacker who successfully exploited this
vulnerability could take complete control of an affected system.

TIF Folder Information Disclosure Vulnerability
CVE-2006-5578

An information disclosure vulnerability exists in Internet Explorer in the way
that drag and drop operations are handled in certain situations. An attacker
could exploit the vulnerability by constructing a specially crafted Web page
that could allow for information disclosure if a user viewed and interacted
with the Web page. An attacker who successfully exploited this vulnerability
would be able to retrieve files from the Temporary Internet Files (TIF) folder
on a users system.

TIF Folder Information Disclosure Vulnerability
CVE-2006-5577

An information disclosure vulnerability exists in Internet Explorer in
certain scenarios where the path to the cached content in the TIF folder
could be disclosed. An attacker could exploit the vulnerability by
constructing a specially crafted Web page that could allow for information
disclosure if a user viewed the Web page. An attacker who successfully
exploited this vulnerability would be able to retrieve files from the
Temporary Internet Files (TIF) folder on a users system. However, user
interaction is required to exploit this vulnerability.

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