Microsoft Excel 2000/2003/2004/XP SP3 rtWnDesk 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.
5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Excel 2000/2003/2004/XP SP3. It has been rated as critical. The impacted element is the function rtWnDesk. This manipulation causes memory corruption. This vulnerability is handled as CVE-2007-3890. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Excel 2000/2003/2004/XP SP3 (Spreadsheet Software). Affected by this vulnerability is the function rtWnDesk. 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. The summary by CVE is:

Microsoft Excel in Office 2000 SP3, Office XP SP3, Office 2003 SP2, and Office 2004 for Mac allows remote attackers to execute arbitrary code via a Workspace with a certain index value that triggers memory corruption.

The weakness was released 08/14/2007 by Dyon Balding with Microsoft as MS07-044 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2007-3890 since 07/19/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 25882 (MS07-044: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (940965)), 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 110063 (Microsoft Excel Could Allow Remote Code Execution (MS07-044)).

Upgrading eliminates this vulnerability. Applying the patch MS07-044 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. Attack attempts may be identified with Snort ID 12284. In this case the pattern 8|00 04 00| is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 5532.

The vulnerability is also documented in the databases at X-Force (35816), Tenable (25882), SecurityFocus (BID 25280†), OSVDB (36383†) and Secunia (SA26145†). Additional details are provided at computerworld.com. Entries connected to this vulnerability are available at VDB-3244, VDB-3253, VDB-3245 and VDB-3246. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
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
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 25882
Nessus Name: MS07-044: Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (940965)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: MS07-044

Snort ID: 12284
Snort Message: WEB-CLIENT Excel rtWnDesk record memory corruption exploit attempt
Snort Pattern: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

07/19/2007 🔍
08/14/2007 +26 days 🔍
08/14/2007 +0 days 🔍
08/14/2007 +0 days 🔍
08/14/2007 +0 days 🔍
08/14/2007 +0 days 🔍
08/14/2007 +0 days 🔍
08/14/2007 +0 days 🔍
08/14/2007 +0 days 🔍
08/15/2007 +0 days 🔍
08/20/2007 +5 days 🔍
03/15/2021 +4956 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS07-044
Researcher: Dyon Balding
Organization: Microsoft
Status: Confirmed

CVE: CVE-2007-3890 (🔍)
GCVE (CVE): GCVE-0-2007-3890
GCVE (VulDB): GCVE-100-3241

OVAL: 🔍

X-Force: 35816
SecurityFocus: 25280 - Microsoft Excel Worksheet Index Value Remote Code Execution Vulnerability
Secunia: 26145 - Microsoft Excel rtWnDesk Record Memory Corruption Vulnerability, Highly Critical
OSVDB: 36383 - Microsoft Excel Workspace rtWnDesk Record Memory Corruption
SecurityTracker: 1018561 - Microsoft Excel Workspace Index Validation Bug Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 15861 - [MS07-044] Microsoft Excel Remote Code Execution via Crafted Workspace Triggering Memory Corruption, Medium
Vupen: ADV-2007-2868

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 08/20/2007 08:42
Updated: 03/15/2021 16:28
Changes: 08/20/2007 08:42 (95), 05/04/2019 18:59 (11), 03/15/2021 16:28 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!