-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2006.0122 -- AUSCERT ALERT
                                   [Win]
        MS06-072 - Cumulative Security Update for Internet Explorer
                             13 December 2006

===========================================================================

        AusCERT Alert Summary
        ---------------------

Product:              Internet Explorer 5 and 6
Publisher:            Microsoft
Operating System:     Windows
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-5581 CVE-2006-5579 CVE-2006-5578
                      CVE-2006-5577
Member content until: Wednesday, January 10 2007

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

- --------------------------BEGIN INCLUDED TEXT--------------------

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.

- --------------------------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

iQCVAwUBRX82QCh9+71yA2DNAQIB3gQAmlHa5PTbwm7U6asGnpvmZRiKv0APac1c
vs5lZUyrTh03TLFlupunB3Udp0wd+MpsPBe7Tk8vrjkQy9tlKWS8/JG2RQb1ijgj
IzoCDf7G4mcClyllZFyjKhdCnnwhTUxW/trD4jjaL74wTLAdOnFIYiMUr/x5sN+1
Gn+hYI7pR3Y=
=Idnu
-----END PGP SIGNATURE-----