Microsoft Office 2004/2007/2008/2010/2011 Spreadsheet input validation

CVSS Meta Temp Score
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CTI Interest Score
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9.6$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Office 2004/2007/2008/2010/2011. This issue affects some unknown processing of the component Spreadsheet. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2011-1989. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as very critical has been found in Microsoft Office 2004/2007/2008/2010/2011 (Office Suite Software). This affects some unknown processing of the component Spreadsheet. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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."

The weakness was released 09/15/2011 with TippingPoint's Zero Day Initiative (Website). It is possible to read the advisory at us-cert.gov. This vulnerability is uniquely identified as CVE-2011-1989 since 05/09/2011. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/20/2021).

The vulnerability scanner Nessus provides a plugin with the ID 56178 (MS11-072: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2587505) (Mac OS X)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110144 (Microsoft Excel Remote Code Execution Vulnerabilities (MS11-072)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11597.

The vulnerability is also documented in the databases at X-Force (69498), Tenable (56178), SecurityFocus (BID 49518†) and Vulnerability Center (SBV-33228†). Entries connected to this vulnerability are available at VDB-58492, VDB-58490, VDB-58489 and VDB-58488. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.6
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.6
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56178
Nessus Name: MS11-072: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2587505) (Mac OS X)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902727
OpenVAS Name: Microsoft Office Excel Remote Code Execution Vulnerabilities (2587505)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/09/2011 🔍
09/13/2011 +127 days 🔍
09/13/2011 +0 days 🔍
09/14/2011 +1 days 🔍
09/15/2011 +1 days 🔍
09/15/2011 +0 days 🔍
03/23/2015 +1285 days 🔍
11/20/2021 +2434 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: us-cert.gov
Organization: TippingPoint's Zero Day Initiative
Status: Not defined

CVE: CVE-2011-1989 (🔍)
GCVE (CVE): GCVE-0-2011-1989
GCVE (VulDB): GCVE-100-58491

OVAL: 🔍
IAVM: 🔍

X-Force: 69498
SecurityFocus: 49518 - Microsoft Excel Conditional Expression CVE-2011-1989 Remote Code Execution Vulnerability
Vulnerability Center: 33228 - [MS11-072] Microsoft Various Excel Related Products Remote Code Execution Vulnerability (III), Critical

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/20/2021 07:10
Changes: 03/23/2015 16:50 (67), 04/03/2017 18:12 (12), 11/20/2021 07:10 (3)
Complete: 🔍
Cache ID: 216:D55:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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