MS13-072 - Important Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2845537)

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Details
Vulnerability name/brief description MS13-072 - Important Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2845537)
CVE/CAN name
Vendor threat level Important
SophosLabs threat level Critical
Solution MS13-072
Vendor description This security update resolves 13 privately reported vulnerabilities in Microsoft Office. The most severe vulnerabilities could allow remote code execution if a specially crafted file is opened in an affected version of Microsoft Office software. An attacker who successfully exploited the most severe vulnerabilities could gain the same user rights as the current 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 vulnerabilities reported primarily deal with the way Microsoft Word improperly handles XML external entities that are resolved within other XML external entity declarations. As Microsoft Word is an extremely popular software, SophosLabs urges everyone to apply the patch update as soon as possible.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date 10 Sep 2013
Affected software Microsoft Office 2003 Service Pack 3 (mso)
Microsoft Office 2003 Service Pack 3 - Microsoft Word 2003 Service Pack 3
Microsoft Office 2007 Service Pack 3 (mso)
Microsoft Office 2007 Service Pack 3 (msptls)
Microsoft Office 2007 Service Pack 3 - Microsoft Word 2007 Service Pack 3
Microsoft Office 2010 Service Pack 1 (32-bit editions) - Microsoft Word 2010 Service Pack 1 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (32-bit editions) - Microsoft Word 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2010 Service Pack 1 (64-bit editions) - Microsoft Word 2010 Service Pack 1 (64-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions) - Microsoft Word 2010 Service Pack 2 (64-bit editions)
Microsoft Office Compatibility Pack Service Pack 3
Microsoft Word Viewer
References
Credits
  • MAPP
Revisions
  • Sep 10, 2013 - Initial Revision 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.