Microsoft Excel 2000/2002/2003/2004/2007 set Font memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Microsoft Excel 2000/2002/2003/2004/2007. The affected element is the function set Font. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2007-1203. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Microsoft Excel 2000/2002/2003/2004/2007 (Spreadsheet Software) and classified as critical. This vulnerability affects the function set Font. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Unspecified vulnerability in Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, 2003 Viewer, 2004 for Mac, and 2007 allows user-assisted remote attackers to execute arbitrary code via a crafted set font value in an Excel file, which results in memory corruption.

The bug was discovered 05/08/2007. The weakness was shared 05/08/2007 by Manuel Santamarina Suarez with Microsoft as MS07-023 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability was named CVE-2007-1203 since 03/02/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 25173 (MS07-023 / MS07-024 / MS07-025: Vulnerabilities in Microsoft Office Allow Remote Code Execution (934233 / 934232 / 934873) (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 and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110058 (Microsoft Excel Remote Code Execution Vulnerability (MS07-023)).

Upgrading eliminates this vulnerability. Applying the patch MS07-023 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. Attack attempts may be identified with Snort ID 12256. In this case the pattern `|10| is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 5331.

The vulnerability is also documented in the databases at X-Force (33914), Tenable (25173), SecurityFocus (BID 23779†), OSVDB (34394†) and Secunia (SA25150†). Additional details are provided at informationweek.com. The entries VDB-2925, VDB-2939, VDB-3054 and VDB-3063 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 25173
Nessus Name: MS07-023 / MS07-024 / MS07-025: Vulnerabilities in Microsoft Office Allow Remote Code Execution (934233 / 934232 / 934873) (Mac OS X)
Nessus File: 🔍
Nessus Risk: 🔍
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Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: MS07-023

Snort ID: 12256
Snort Message: WEB-CLIENT Excel malformed FBI record
Snort Pattern: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
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Timelineinfo

03/02/2007 🔍
05/08/2007 +67 days 🔍
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05/10/2007 +1 days 🔍
07/18/2019 +4452 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS07-023
Researcher: Manuel Santamarina Suarez
Organization: Microsoft
Status: Confirmed

CVE: CVE-2007-1203 (🔍)
GCVE (CVE): GCVE-0-2007-1203
GCVE (VulDB): GCVE-100-3064

OVAL: 🔍

X-Force: 33914 - Microsoft Excel placeholder data code execution, High Risk
SecurityFocus: 23779 - Microsoft Excel Set Font Remote Code Execution Vulnerability
Secunia: 25150
OSVDB: 34394 - Microsoft Office Excel Set Font Handling Remote Code Execution
SecurityTracker: 1018012
Vulnerability Center: 15037 - [MS07-023] Microsoft Excel Remote Code Execution via Crafted Set Font Value in Excel File, Medium
Vupen: ADV-2007-1708

Misc.: 🔍
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Entryinfo

Created: 05/10/2007 15:12
Updated: 07/18/2019 18:36
Changes: 05/10/2007 15:12 (107), 07/18/2019 18:36 (1)
Complete: 🔍
Cache ID: 216:927:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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