Vulnerability: MS10-056 - Critical Vulnerabilities in Microsoft Office Word Could Allow Remote Code Execution (2269638)
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| Details | |
|---|---|
| Vulnerability name/brief description | MS10-056 - Critical Vulnerabilities in Microsoft Office Word Could Allow Remote Code Execution (2269638) |
| CVE/CAN name | CVE-2010-1901 CVE-2010-1902 CVE-2010-1903 |
| Vendor threat level | Critical |
| SophosLabs threat level | Medium |
| Solution | |
| Vendor description | This security update resolves four privately reported vulnerabilities in Microsoft Office. The most severe vulnerabilities could allow remote code execution if a user opens or previews a specially crafted RTF e-mail message. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. |
| SophosLabs comments | The patch encompasses how Microsoft Word opens specially crafted Word files and how it handles rich text data. At worst, attacker who successfully exploits these vulnerabilities would gain the rights and privileges of the current user. The fact that these vulnerabilities were privately disclosed and that we are yet to see any malware that exploit these issues have been considered when assigning the SophosLabs threat rating of Medium, although we do recommend that users apply this patch at their earliest convenience. |
| SophosLabs testing result | N/A |
| Currently known exploits | At the time of writing SophosLabs have not observed any malware attempting to exploit this vulnerability. Should this situation change samples will be analyzed and we will take action as necessary. |
| First sample seen | N/A |
| Discovery date | August 10, 2010 |
| Affected software | Microsoft Office XP Service Pack 3 Microsoft Office 2003 Service Pack 3 2007 Microsoft Office System Service Pack 2 Microsoft Office 2004 for Mac Microsoft Office 2008 for Mac Open XML File Format Converter for Mac Microsoft Office Word Viewer Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 Microsoft Works 9 |
| References | http://www.microsoft.com/technet/security/bulletin/MS10-056.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1901 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1902 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1903 |
| Credits | Microsoft MAPP |
| Revisions | August 10, 2010 - Initial analysis written |
Explanation of terms
Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.
CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.
Vendor Threat Level:
Threat level assigned by the vendor
SophosLabs Threat Level:
Threat level assigned by SophosLabs
- LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
- MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
- HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
- CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.
Solution:
Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.
Vendor Description:
Summary of the cause and potential effect of the vulnerability provided by the vendor.
SophosLabs Comments:
SophosLabs' opinions and observations of the vulnerability in question.
SophosLabs Testing Result:
Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.
Currently Known Exploits:
List of identities for known exploits, if applicable.
First Sample Seen:
Date of the first sample seen by SophosLabs.
Discovery Date:
Date of the earliest known publically disclosed advisory.
Affected Software:
Vulnerable platforms and software versions.
If you need more information or guidance, then please contact technical support.
- Article ID: 111725
- Created: 10 Aug 2010
- Last updated: 13 Sep 2010
