Microsoft Outlook 2000/2002/2003 TNEF MIME Attachment integer coercion

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

Summaryinfo

A vulnerability has been found in Microsoft Outlook 2000/2002/2003 and classified as critical. Impacted is an unknown function of the component TNEF MIME Attachment Handler. This manipulation causes integer coercion. This vulnerability appears as CVE-2006-0002. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Outlook 2000/2002/2003 (Groupware Software). Affected by this vulnerability is an unknown part of the component TNEF MIME Attachment Handler. The manipulation with an unknown input leads to a integer coercion vulnerability. The CWE definition for the vulnerability is CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in Microsoft Outlook 2000 through 2003, Exchange 5.0 Server SP2 and 5.5 SP4, Exchange 2000 SP3, and Office allows remote attackers to execute arbitrary code via an e-mail message with a crafted Transport Neutral Encapsulation Format (TNEF) MIME attachment, related to message length validation.

The weakness was presented 01/10/2006 by John Heasman and Mark Litchfield with NGS Software as MS06-003 as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. This vulnerability is known as CVE-2006-0002 since 11/09/2005. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly 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 20390 (MS06-003: Vulnerability in TNEF Decoding in Microsoft Outlook and Microsoft Exchange Could Allow Remote Code Execution (902412)), 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 90291 (TNEF Decoding Vulnerability in Microsoft Outlook and Microsoft Exchange Could Allow Remote Code Execution (MS06-003)).

Applying the patch MS06-003 is able to eliminate this problem. The bugfix is ready for download at windowsupdate.microsoft.com.

The vulnerability is also documented in the databases at X-Force (22878), Tenable (20390), SecurityFocus (BID 16197†), OSVDB (22305†) and Secunia (SA18368†). See VDB-1962 and VDB-1964 for similar entries. 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: 🔍
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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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20390
Nessus Name: MS06-003: Vulnerability in TNEF Decoding in Microsoft Outlook and Microsoft Exchange Could Allow Remote Code Execution (902412)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS06-003

Timelineinfo

11/09/2005 🔍
01/10/2006 +62 days 🔍
01/10/2006 +0 days 🔍
01/10/2006 +0 days 🔍
01/10/2006 +0 days 🔍
01/10/2006 +0 days 🔍
01/10/2006 +0 days 🔍
01/11/2006 +0 days 🔍
06/25/2025 +7105 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS06-003
Researcher: John Heasman, Mark Litchfield
Organization: NGS Software
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-0002 (🔍)
GCVE (CVE): GCVE-0-2006-0002
GCVE (VulDB): GCVE-100-1963

OVAL: 🔍
IAVM: 🔍

CERT: 🔍
X-Force: 22878 - Microsoft Exchange Server and Outlook TNEF overflow, High Risk
SecurityFocus: 16197 - Microsoft Outlook / Microsoft Exchange TNEF Decoding Remote Code Execution Vulnerability
Secunia: 18368 - Microsoft Outlook / Exchange TNEF Decoding Arbitrary Code Execution, Highly Critical
OSVDB: 22305 - Microsoft Outlook/Exchange TNEF Decoding Arbitrary Code Execution
SecurityTracker: 1015461 - Microsoft Outlook Buffer Overflow in Processing TNEF Messages Lets Remote Users Execute Arbitrary Code
Vupen: ADV-2006-0119

See also: 🔍

Entryinfo

Created: 01/11/2006 14:48
Updated: 06/25/2025 06:42
Changes: 01/11/2006 14:48 (90), 09/30/2016 11:56 (4), 03/12/2021 10:20 (3), 01/19/2025 07:38 (16), 06/25/2025 06:42 (2)
Complete: 🔍
Cache ID: 216::103

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

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