MS13-104 - Vulnerability in a Microsoft Office Could Allow Information Disclosure (2909976)

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Details
Vulnerability name/brief description MS13-104 - Vulnerability in a Microsoft Office Could Allow Information Disclosure (2909976)
CVE/CAN name
Vendor threat level Important
SophosLabs threat level low
Solution MS13-104
Vendor description This security update resolves one privately reported vulnerability in Microsoft Office that could allow information disclosure if a user attempts to open an Office file hosted on a malicious website. An attacker who successfully exploited this vulnerability could ascertain access tokens used to authenticate the current user on a targeted SharePoint or other Microsoft Office server site. The security update addresses the vulnerability by helping to ensure that Microsoft Office software properly handles specially crafted responses from websites.
SophosLabs comments As this vulnerability was privately reported and SophosLabs has not seen specific attacks using this exploit, SophosLabs expects the impact from this vulnerability to be mitigated.
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 Dec 2013
Affected software Microsoft Office 2013 (32-bit editions)
Microsoft Office 2013 (64-bit editions)
Microsoft Office 2013 RT
References
Credits
  • MAPP
Revisions
  • December 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:

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Vendor Description:

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SophosLabs Comments:

SophosLabs' opinions and observations of the vulnerability in question.

SophosLabs Testing Result:

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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.