PT-2011-2787 · Microsoft · Open Xml File Format Converter For Mac+3

Published 2011-02-07 · Updated 2018-10-12 · CVE-2011-0979

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Excel versions 2002 SP3, 2003 SP3, 2007 SP2, and 2010 Office for Mac versions 2004, 2008, and 2011 Open XML File Format Converter for Mac Excel Viewer version SP2

Description A remote code execution issue exists in the way Microsoft Excel handles specially crafted Excel files, allowing attackers to execute arbitrary code via a malformed object record. This is related to a "stray reference" during the parsing of Office Art records in Excel spreadsheets. An attacker who successfully exploits this issue could take complete control of an affected system, enabling them to install programs, view, change, or delete data, or create new accounts with full user rights.

Recommendations For Microsoft Excel versions 2002 SP3, 2003 SP3, 2007 SP2, and 2010, update to a version that properly handles errors during the parsing of Office Art records. For Office for Mac versions 2004, 2008, and 2011, update to a version that correctly parses Office Art records in Excel spreadsheets. For Open XML File Format Converter for Mac, update to a version that properly handles specially crafted Excel files. For Excel Viewer version SP2, update to a version that correctly handles the parsing of Office Art records. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2011-0979

ZDI-11-041

Affected Products

Excel Viewer

Office Excel

Office For Mac

Open Xml File Format Converter For Mac

References · 15

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-021 · Vendor Advisory
• http://vupen.com/english/advisories/2011/0940 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-11-041 · Security Note
• http://secunia.com/advisories/39122 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0979 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2011-0979 · Security Note
• http://secunia.com/advisories/43231 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0979 · Note
• http://securitytracker.com/id?1025337 · Note
• http://zerodayinitiative.com/advisories/ZDI-11-041 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12595 · Note
• http://us-cert.gov/cas/techalerts/TA11-102A.html · Note
• http://osvdb.org/70904 · Note
• https://docs.microsoft.com/security-updates/securitybulletins/2011/MS11-021 · Note
• http://dvlabs.tippingpoint.com/blog/2011/02/07/zdi-disclosure-microsoft · Note