CVE-2011-1989
Microsoft Office Excel Conditional Expression Ptg Type Confusion Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Microsoft Excel 2003 SP3 and 2007 SP2; Excel in Office 2007 SP2; Excel 2010 Gold and SP1; Excel in Office 2010 Gold and SP1; Office 2004, 2008, and 2011 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; Excel Services on Office SharePoint Server 2007 SP2; Excel Services on Office SharePoint Server 2010 Gold and SP1; and Excel Web App 2010 Gold and SP1 do not properly parse conditional expressions associated with formatting requirements, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Conditional Expression Parsing Vulnerability."
Microsoft Excel 2003 Service Pack 3 y Service Pack 2 de 2007; Excel en Office 2007 SP2, Excel 2010 Service Pack 1 Gold y SP1; Excel en Office 2010 Service Pack 1 Gold y SP1; Office 2004, 2008 y 2011 para Mac; Open XML File Format Converter para Mac; Excel Viewer Service Pack 2; Paquete de compatibilidad de Office para Word, Excel y PowerPoint 2007 Service Pack 2, Servicios de Excel en Office SharePoint Server 2007 SP2, Servicios de Excel en Office SharePoint Server 2010 Gold y SP1, y Excel Web Access 2010 Gold y SP1 no analizan correctamente las expresiones condicionales asociadas con requisitos de formato, lo que permite a atacantes remotos ejecutar código de su elección a través de una hoja de cálculo debidamente modificada. Es un problema también conocido como "Vulnerabilidad de análisis de expresiones condicionales de Excel".
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office Excel. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within how the application parses expressions used for determining formatting requirements. Due to the application not handling certain components of the expression correctly, the application will treat one of the structures as a different type and consequently treat one of its arguments as a pointer. This pointer is used to fetch a virtual method table and can be used to achieve code execution under the context of the application.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2011-05-09 CVE Reserved
- 2011-09-15 CVE Published
- 2024-08-06 CVE Updated
- 2024-10-01 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| http://www.us-cert.gov/cas/techalerts/TA11-256A.html | Third Party Advisory | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12974 | Signature |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-072 | 2018-10-12 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Excel Search vendor "Microsoft" for product "Excel" | 2003 Search vendor "Microsoft" for product "Excel" and version "2003" | sp3 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Excel Search vendor "Microsoft" for product "Excel" | 2007 Search vendor "Microsoft" for product "Excel" and version "2007" | sp2 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Excel Search vendor "Microsoft" for product "Excel" | 2010 Search vendor "Microsoft" for product "Excel" and version "2010" | x32 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Excel Search vendor "Microsoft" for product "Excel" | 2010 Search vendor "Microsoft" for product "Excel" and version "2010" | x64 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Excel Search vendor "Microsoft" for product "Excel" | 2010 Search vendor "Microsoft" for product "Excel" and version "2010" | sp1, x32 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Excel Search vendor "Microsoft" for product "Excel" | 2010 Search vendor "Microsoft" for product "Excel" and version "2010" | sp1, x64 |
Affected
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| Microsoft Search vendor "Microsoft" | Excel Viewer Search vendor "Microsoft" for product "Excel Viewer" | * | sp2 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Excel Web App Search vendor "Microsoft" for product "Excel Web App" | 2010 Search vendor "Microsoft" for product "Excel Web App" and version "2010" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Excel Web App Search vendor "Microsoft" for product "Excel Web App" | 2010 Search vendor "Microsoft" for product "Excel Web App" and version "2010" | sp1 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2004 Search vendor "Microsoft" for product "Office" and version "2004" | mac |
Affected
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| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2007 Search vendor "Microsoft" for product "Office" and version "2007" | sp2 |
Affected
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| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2008 Search vendor "Microsoft" for product "Office" and version "2008" | mac |
Affected
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| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2010 Search vendor "Microsoft" for product "Office" and version "2010" | x32 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2010 Search vendor "Microsoft" for product "Office" and version "2010" | x64 |
Affected
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| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2010 Search vendor "Microsoft" for product "Office" and version "2010" | sp1, x32 |
Affected
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| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2010 Search vendor "Microsoft" for product "Office" and version "2010" | sp1, x64 |
Affected
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| Microsoft Search vendor "Microsoft" | Office Search vendor "Microsoft" for product "Office" | 2011 Search vendor "Microsoft" for product "Office" and version "2011" | mac |
Affected
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| Microsoft Search vendor "Microsoft" | Office Compatibility Pack Search vendor "Microsoft" for product "Office Compatibility Pack" | 2007 Search vendor "Microsoft" for product "Office Compatibility Pack" and version "2007" | sp2 |
Affected
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| Microsoft Search vendor "Microsoft" | Open Xml File Format Converter Search vendor "Microsoft" for product "Open Xml File Format Converter" | * | mac |
Affected
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| Microsoft Search vendor "Microsoft" | Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server" | 2007 Search vendor "Microsoft" for product "Sharepoint Server" and version "2007" | sp2, x32 |
Affected
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| Microsoft Search vendor "Microsoft" | Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server" | 2007 Search vendor "Microsoft" for product "Sharepoint Server" and version "2007" | sp2, x64 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server" | 2010 Search vendor "Microsoft" for product "Sharepoint Server" and version "2010" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server" | 2010 Search vendor "Microsoft" for product "Sharepoint Server" and version "2010" | sp1 |
Affected
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