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Liebe Kolleginnen und Kollegen,
soeben erreichte uns nachfolgende Warnung des Microsoft Product Security
Notification Service. Wir geben diese Informationen unveraendert an Sie
weiter.
CVE-2010-0264 – Schwachstelle beim Parsen des ‘DbOrParamQry’-Parameters
In Microsoft Exel wird beim Parsen eines XLS-Dokumentes der
‘DbOrParamQry’-Parameter nicht ausreichend ueberprueft und dadurch
koennen Speicherinhalte ueberschrieben werden. Ein Angreifer kann diese
Schwachstelle zum Ausfuehren beliebiger Befehle mit Benutzerrechten
ausnutzen, indem er einen Benutzer dazu bringt, ein speziell
praepariertes XLS-Dokument zu oeffnen.
CVE-2010-0261 / CVE-2010-0260 – Mehrere Heap Overflow Schwachstellen in
Microsoft Excel
In Microsoft Exel werden beim Parsen eines XLS-Dokumentes die ‘MDXSET’-
und ‘MDXTUPLE’-Records nicht ausreichend ueberprueft und dadurch kann
ein Heap Overflow ausgeloest werden. Ein Angreifer kann diese
Schwachstelle zum Ausfuehren beliebiger Befehle mit Benutzerrechten
ausnutzen, indem er diesen dazu bringt, ein speziell aufgebautes
XLS-Dokument zu oeffnen.
CVE-2010-0257 – Schwachstelle in Microsoft Excel ermoeglicht
Codeausfuehrung
Eine bisher nicht naeher beschriebene Schwachstelle in Microsoft Excel
ermoeglicht es einem Angreifer beliebige Befehle mit den Rechten des
Anwenders auszufuehren. Ein Angreifer kann diese Schwachstelle
ausnutzen, indem er ein speziell praepariertes Excel-Dokument erstellt
und einen Benutzer dazu veranlasst, dieses zu oeffnen.
CVE-2010-0258 – Schwachstelle beim Parsen von Sheet-Objects in Microsoft
Excel
Microsoft Excel enthaelt eine Schwachstelle beim Parsen von sogenannten
Sheet-Objects in XLS-Dokumenten. Grund hierfuer ist ein Fehler, welcher
auftritt, wenn mehrere Records innerhalb des Dokumentes geparsed
werden, die ein gemeinsames Daten-Objekt referenzieren.
Gelingt es einem Angreifer die Schwachstelle auszunutzen, so kann er
beliebige Befehle mit den Rechten des Anwenders ausfuehren.
CVE-2010-0263 – Schwachstelle in Microsoft Excel bei der Verarbeitung
von XLSX-Dokumenten
Microsoft Excel ueberprueft ZIP-Header beim Entpacken XLSX-Dokumenten
nicht ausreichend und dadurch kann unter Umstaenden Inhalt von nicht
initialisierten Speicherbereichen ausgefuehrt werden. Ein entfernter
Angreifer kann diese Schwachstelle zum Ausfuehren beliebiger Befehle
mit Benutzer-Rechten ausnutzen, indem er diesen zum Oeffnen eines
entsprechend aufgebauten XLSX-Dokumentes bringt.
CVE-2010-0262 – Schwachstelle beim Parsen des ‘FNGROUPNAME’-Datensatz
In Microsoft Exel wird beim Parsen eines XLS-Dokumentes der
‘FNGROUPNAME’-Datensatz nicht ausreichend ueberprueft und dadurch
koennen Speicherinhalte ueberschrieben werden. Ein Angreifer kann diese
Schwachstelle zum Ausfuehren beliebiger Befehle mit Benutzerrechten
ausnutzen, indem er einen Benutzer dazu bringt, ein speziell
praepariertes XLS-Dokument zu oeffnen.
Betroffen sind die folgenden Software Pakete und Plattformen:
Microsoft Office XP Service Pack 3
Microsoft Office 2003 Service Pack 3
2007 Microsoft Office System Service Pack 1
2007 Microsoft Office System Service Pack 2
Microsoft Office 2004 for Mac
Microsoft Office 2008 for Mac
Open XML File Format Converter for Mac
Microsoft Office Excel Viewer Service Pack 1 und Microsoft Office
Excel Viewer Service Pack 2
Microsoft Office Compatibility Pack fuer Word, Excel
PowerPoint 2007 File Formats Service Pack 1
Microsoft Office Compatibility Pack for Word, Excel, und PowerPoint
2007 File Formats Service Pack 2
Microsoft Office SharePoint Server 2007 Service Pack 1 (32-bit)
Microsoft Office SharePoint Server 2007 Service Pack 2 (32-bit)
Microsoft Office SharePoint Server 2007 Service Pack 1 (64-bit)
Microsoft Office SharePoint Server 2007 Service Pack 2 (64-bit)
Alle Plattformen fuer die eine betroffene Versionen von Microsoft Excel
verfuegbar sind.
Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.
Hersteller Advisory:
http://www.microsoft.com/technet/security/bulletin/ms10-017.mspx
(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.
Mit freundlichen Gruessen,
Michael Groening, DFN-CERT
– —
Michael Groening (Incident Response Team)
DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone +49 40 808077-555
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.: DE 232129737
Sachsenstrasse 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski
Automatische Warnmeldungen https://www.cert.dfn.de/autowarn
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AUSCERT External Security Bulletin Redistribution
ESB-2010.0232
Vulnerabilities in Microsoft Office Excel Could Allow Remote Code Execution
10 March 2010
===========================================================================
AusCERT Security Bulletin Summary
———————————
Product: Microsoft Office XP
Microsoft Office 2003
2007 Microsoft Office System
Microsoft Office 2004 for Mac
Microsoft Office 2008 for Mac
Open XML File Format Converter for Mac
Microsoft Office Excel Viewer
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007
Microsoft Office SharePoint Server 2007
Publisher: Microsoft
Operating System: Windows
Mac OS X
Impact/Access: Execute Arbitrary Code/Commands — Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2010-0264 CVE-2010-0263 CVE-2010-0262
CVE-2010-0261 CVE-2010-0260 CVE-2010-0258
CVE-2010-0257
Original Bulletin:
http://www.microsoft.com/technet/security/bulletin/ms10-017.mspx
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Microsoft Security Bulletin MS10-017 – Important
Vulnerabilities in Microsoft Office Excel Could Allow Remote Code Execution
(980150)
Version: 1.0
General Information
Executive Summary
This security update resolves seven privately reported vulnerabilities in
Microsoft Office Excel. The vulnerabilities could allow remote code
execution if a user opens a specially crafted Excel file. An attacker who
successfully exploited any of these vulnerabilities could gain the same
user rights as the local user. 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 Important for all supported editions of
Microsoft Office Excel 2002, Microsoft Office Excel 2003, Microsoft Office
Excel 2007, Microsoft Office 2004 for Mac, and Microsoft Office 2008 for
Mac; Open XML File Format Converter for Mac; and all supported versions of
Microsoft Office Excel Viewer and Microsoft Office Compatibility Pack. For
more information, see the subsection, Affected and Non-Affected Software,
in this section.
The update addresses the vulnerabilities by changing the way that Microsoft
Office Excel parses specially crafted Excel files. For more information
about the vulnerability, see the Frequently Asked Questions (FAQ) subsection
for the specific vulnerability entry under the next section, Vulnerability
Information.)
Recommendation. Microsoft recommends that customers apply the update at the
earliest opportunity.
Known Issues. Microsoft Knowledge Base Article 980150 documents the
currently known issues that customers may experience when installing this
security update. The article also documents recommended solutions for these
issues. When currently known issues and recommended solutions pertain only
to specific releases of this software, this article provides links to
further articles.
Affected Software
Microsoft Office XP Service Pack 3
Microsoft Office 2003 Service Pack 3
2007 Microsoft Office System Service Pack 1
2007 Microsoft Office System Service Pack 2
Microsoft Office 2004 for Mac
Microsoft Office 2008 for Mac
Open XML File Format Converter for Mac
Microsoft Office Excel Viewer Service Pack 1 and 2
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007
File Formats Service Pack 1 and Microsoft Office Compatibility Pack for
Word, Excel, and PowerPoint 2007 File Formats Service Pack 2
Microsoft Office SharePoint Server 2007 Service Pack 1 (32-bit editions)
Microsoft Office SharePoint Server 2007 Service Pack 2 (32-bit editions)
Microsoft Office SharePoint Server 2007 Service Pack 1 (64-bit editions)
Microsoft Office SharePoint Server 2007 Service Pack 2 (64-bit editions)
Vulnerability Information
Microsoft Office Excel Record Memory Corruption Vulnerability – CVE-2010-0257
A remote code execution vulnerability exists in the way that Microsoft
Office Excel handles specially crafted Excel files. 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.
Microsoft Office Excel Sheet Object Type Confusion Vulnerability –
CVE-2010-0258
A remote code execution vulnerability exists in the way that Microsoft
Office Excel handles specially crafted Excel files. 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
Microsoft Office Excel MDXTUPLE Record Heap Overflow Vulnerability –
CVE-2010-0260
A remote code execution vulnerability exists in the way that Microsoft
Office Excel handles specially crafted Excel files. 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.
Microsoft Office Excel MDXSET Record Heap Overflow Vulnerability –
CVE-2010-0261
A remote code execution vulnerability exists in the way that Microsoft
Office Excel handles specially crafted Excel files. 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.
Microsoft Office Excel FNGROUPNAME Record Uninitialized Memory Vulnerability –
CVE-2010-0262
A remote code execution vulnerability exists in the way that Microsoft
Office Excel handles specially crafted Excel files. 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.
Microsoft Office Excel XLSX File Parsing Code Execution Vulnerability –
CVE-2010-0263
A remote code execution vulnerability exists in the way that Microsoft
Office Excel handles specially crafted Excel files. 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.
Microsoft Office Excel DbOrParamQry Record Parsing Vulnerability –
CVE-2010-0264
A remote code execution vulnerability exists in the way that Microsoft
Office Excel handles specially crafted Excel files. 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.
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NOTE: This is only the original release of the security bulletin. It may
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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.
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