Microsoft Excel 2002/2003/2007 input validation

CVSS Meta Temp Score
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Excel 2002/2003/2007. This affects an unknown part. This manipulation causes input validation. The identification of this vulnerability is CVE-2011-1272. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Microsoft Excel 2002/2003/2007 (Spreadsheet Software) and classified as very critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Microsoft Excel 2002 SP3, 2003 SP3, and 2007 SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 do not properly validate record structures during parsing of Excel spreadsheets, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Insufficient Record Validation Vulnerability."

The weakness was shared 06/14/2011 by iDefense Labs with VeriSign iDefense Labs as MS11-045 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2011-1272 since 03/04/2011. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/19/2021).

The vulnerability scanner Nessus provides a plugin with the ID 55125 (MS11-045: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2537146)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118896 (Microsoft Excel Could Allow Remote Code Execution (MS11-045)).

Upgrading eliminates this vulnerability. Applying the patch MS11-045 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11332.

The vulnerability is also documented in the databases at Tenable (55125), SecurityFocus (BID 48158†), Secunia (SA44901†) and Vulnerability Center (SBV-31783†). The entries VDB-57690, VDB-57689, VDB-57688 and VDB-57687 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Proof-of-Concept
Download: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 55125
Nessus Name: MS11-045: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2537146)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902378
OpenVAS Name: Microsoft Office Excel Remote Code Execution Vulnerabilities (2537146)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS11-045
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/04/2011 🔍
06/14/2011 +102 days 🔍
06/14/2011 +0 days 🔍
06/14/2011 +0 days 🔍
06/14/2011 +0 days 🔍
06/14/2011 +0 days 🔍
06/15/2011 +1 days 🔍
06/15/2011 +0 days 🔍
06/16/2011 +1 days 🔍
06/20/2011 +4 days 🔍
03/19/2021 +3560 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-045
Researcher: iDefense Labs
Organization: VeriSign iDefense Labs
Status: Confirmed

CVE: CVE-2011-1272 (🔍)
GCVE (CVE): GCVE-0-2011-1272
GCVE (VulDB): GCVE-100-4369

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 48158 - Microsoft Improper Record Parsing CVE-2011-1273 Remote Code Execution Vulnerability
Secunia: 44901 - Microsoft Office Excel Multiple Vulnerabilities, Highly Critical
Vulnerability Center: 31783 - [MS11-045] Microsoft Excel Insufficient Record Validation Allows Remote Code Execution, Medium

See also: 🔍

Entryinfo

Created: 06/20/2011 02:00
Updated: 03/19/2021 11:38
Changes: 06/20/2011 02:00 (84), 03/24/2017 07:57 (13), 03/19/2021 11:38 (4)
Complete: 🔍
Cache ID: 216:1AD:103

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