Microsoft Word 2003 CSS code injection

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Word 2003. It has been classified as critical. Impacted is an unknown function of the component CSS Handler. The manipulation leads to code injection. This vulnerability is documented as CVE-2008-1091. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Word 2003 (Word Processing Software). This issue affects an unknown code block of the component CSS Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in Microsoft Word in Office 2000 and XP SP3, 2003 SP2 and SP3, and 2007 Office System SP1 and earlier allows remote attackers to execute arbitrary code via a Rich Text Format (.rtf) file with a malformed string that triggers a "memory calculation error" and a heap-based buffer overflow, aka "Object Parsing Vulnerability."

The bug was discovered 05/13/2008. The weakness was released 05/13/2008 by team509 with iDefense as MS08-026 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. The identification of this vulnerability is CVE-2008-1091 since 02/28/2008. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

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 32310 (MS08-026: Vulnerabilities in Microsoft Word Could Allow Remote Code Execution (951207)), 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 110080 (Microsoft Word Remote Code Execution Vulnerability (MS08-026)).

Upgrading eliminates this vulnerability. Applying the patch MS08-026 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 6099.

The vulnerability is also documented in the databases at X-Force (42099), Tenable (32310), SecurityFocus (BID 29104†), OSVDB (45031†) and Secunia (SA30143†). Entries connected to this vulnerability are available at VDB-3700 and VDB-42326. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
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: 32310
Nessus Name: MS08-026: Vulnerabilities in Microsoft Word Could Allow Remote Code Execution (951207)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: MS08-026
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
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Timelineinfo

02/28/2008 🔍
05/13/2008 +75 days 🔍
05/13/2008 +0 days 🔍
05/13/2008 +0 days 🔍
05/13/2008 +0 days 🔍
05/13/2008 +0 days 🔍
05/13/2008 +0 days 🔍
05/13/2008 +0 days 🔍
05/13/2008 +0 days 🔍
05/14/2008 +1 days 🔍
05/20/2008 +6 days 🔍
01/05/2025 +6074 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS08-026
Researcher: team509
Organization: iDefense
Status: Confirmed

CVE: CVE-2008-1091 (🔍)
GCVE (CVE): GCVE-0-2008-1091
GCVE (VulDB): GCVE-100-3701

OVAL: 🔍

CERT: 🔍
X-Force: 42099
SecurityFocus: 29104 - Microsoft Word RTF Malformed String Handling Memory Corruption Remote Code Execution Vulnerability
Secunia: 30143 - Microsoft Word Two Code Execution Vulnerabilities, Highly Critical
OSVDB: 45031 - CVE-2008-1091 - MS08-026 - Microsoft - Office - Code Execution Issue
SecurityTracker: 1020013
Vulnerability Center: 18371 - [MS08-026] Microsoft Word Object Parsing Vulnerability Allows Remote Code Execution via RTF File, Critical
Vupen: ADV-2008-1504

See also: 🔍

Entryinfo

Created: 05/20/2008 09:43
Updated: 01/05/2025 19:31
Changes: 05/20/2008 09:43 (97), 08/10/2019 09:57 (3), 01/05/2025 19:31 (17)
Complete: 🔍
Cache ID: 216:ED8:103

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