Microsoft Excel 2002/2003 Spreadsheet memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5$0-$5k0.00

A vulnerability classified as very critical has been found in Microsoft Excel 2002/2003 (Spreadsheet Software). Affected is an unknown part of the component Spreadsheet. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac do not properly validate record information during parsing of Excel spreadsheets, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted spreadsheet, aka "Excel Out of Bounds WriteAV Vulnerability."

The weakness was published 06/16/2011 by Will Dormann with CERT/CC as MS11-045 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability is traded as CVE-2011-1279 since 03/04/2011. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/09/2021).

The vulnerability scanner Nessus provides a plugin with the ID 55135 (MS11-036 / MS11-045: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2545814 / 2537146) (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 118896 (Microsoft Excel Could Allow Remote Code Execution (MS11-045)).

Applying the patch MS11-045 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11330.

The vulnerability is also documented in the databases at X-Force (67717) and Tenable (55135). Similar entries are available at 4348, 4349, 4369 and 57689.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 55135
Nessus Name: MS11-036 / MS11-045: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2545814 / 2537146) (Mac OS X)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-045
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍

Timelineinfo

03/04/2011 🔍
06/14/2011 +102 days 🔍
06/14/2011 +0 days 🔍
06/15/2011 +1 days 🔍
06/16/2011 +1 days 🔍
06/16/2011 +0 days 🔍
03/23/2015 +1376 days 🔍
11/09/2021 +2423 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-045
Researcher: Will Dormann
Organization: CERT/CC
Status: Confirmed

CVE: CVE-2011-1279 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 67717
Vulnerability Center: 31806 - [MS11-045] Microsoft Excel Out of Bounds WriteAV Vulnerability Allows Remote Code Execution, Medium
SecurityFocus: 48164 - Microsoft Excel Out of Bounds WriteAV CVE-2011-1279 Remote Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/09/2021 01:09
Changes: 03/23/2015 16:50 (70), 03/24/2017 07:59 (14), 11/09/2021 01:09 (2)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!