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Vulnerability: MS08-055. Vulnerability in Microsoft Office Could Allow Remote Code Execution (955047)
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| Details | |
|---|---|
| Vulnerability name/brief description | Vulnerability in Microsoft Office Could Allow Remote Code Execution (955047) - MS08-055 |
| CVE/CAN name | CVE-2008-3007 |
| Vendor threat level | Critical |
| SophosLabs threat level | Medium |
| Solution | Users are advised to apply the vendor patch for MS08-055 and in the meantime avoid clicking on URLs in OneNote documents of unknown origin. |
| Vendor description | This security update resolves a privately reported vulnerability in Microsoft Office. The vulnerability could allow remote code execution if a user clicks a specially crafted OneNote URL. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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 | While the vulnerability is indeed Critical given it can lead to Remote Code Execution, we have given it a reduced threat level because as well as a patch being available, and the number of samples being seen is low, the vulnerability must also be triggered by the user action of clicking a malformed URL, not simply by opening an exploited document file. |
| SophosLabs testing result | N/A |
| Currently known exploits | This issue was privately reported to Microsoft. At the time of writing SophosLabs has seen no samples of 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 | 9 September 2008 |
| Affected software | Microsoft Office OneNote 2007 |
| References | http://www.microsoft.com/technet/security/Bulletin/ms08-055.mspx |
| Credits | N/A |
| Revisions | 10 September 2008 - 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: 45158
- Created: 10 Sep 2008
- Last updated: 22 Jan 2009
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