Microsoft Word 2003 Word File memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

A vulnerability classified as very critical has been found in Microsoft Word 2003 (Word Processing Software). This affects an unknown function of the component Word File Handler. 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. The summary by CVE is:

Microsoft Word 2003 SP3 allows remote attackers to execute arbitrary code via a crafted Office document, aka "Memory Corruption Vulnerability."

The weakness was disclosed 10/08/2013 by Yuhong Bao as MS13-086 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The public release has been coordinated in cooperation with Microsoft. This vulnerability is uniquely identified as CVE-2013-3891 since 06/03/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/26/2021).

The vulnerability scanner Nessus provides a plugin with the ID 70338 (MS13-086: Vulnerabilities in Microsoft Word Could Allow Remote Code Execution (2885084)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110222 (Microsoft Word Multiple Remote Code Execution Vulnerabilities (MS13-086)).

Applying the patch MS13-086 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. 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 13221.

The vulnerability is also documented in the vulnerability database at Tenable (70338). Further details are available at technet.microsoft.com. The entry 10648 is pretty similar.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 70338
Nessus Name: MS13-086: Vulnerabilities in Microsoft Word Could Allow Remote Code Execution (2885084)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 903406
OpenVAS Name: MS Office Compatibility Pack Remote Code Execution Vulnerabilities (2885084)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS13-086
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Timelineinfo

06/03/2013 🔍
08/10/2013 +68 days 🔍
10/08/2013 +59 days 🔍
10/08/2013 +0 days 🔍
10/08/2013 +0 days 🔍
10/09/2013 +1 days 🔍
10/09/2013 +0 days 🔍
10/09/2013 +0 days 🔍
10/11/2013 +2 days 🔍
05/26/2021 +2784 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS13-086
Researcher: Yuhong Bao
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-3891 (🔍)
OVAL: 🔍
IAVM: 🔍

Vulnerability Center: 41836 - [MS13-086] Microsoft Office 2003 Remote Code Execution due to Memory Corruption - CVE-2013-3891, Critical
SecurityFocus: 62827
Secunia: 55143 - Microsoft Office Word Files Processing Two Memory Corruption Vulnerabilities, Highly Critical
OSVDB: 98221

Misc.: 🔍
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Entryinfo

Created: 10/11/2013 10:01
Updated: 05/26/2021 14:35
Changes: 10/11/2013 10:01 (89), 05/13/2017 09:35 (1), 05/26/2021 14:35 (2)
Complete: 🔍

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