MS14-014 - Vulnerability in Silverlight Could Allow Security Feature Bypass (2932677)

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Details
Vulnerability name/brief description MS14-014 - Vulnerability in Silverlight Could Allow Security Feature Bypass (2932677)
CVE/CAN name
Vendor threat level Important
SophosLabs threat level Medium
Solution MS14-014
Vendor description This security update resolves a privately reported vulnerability in Microsoft Silverlight. The vulnerability could allow security feature bypass if an attacker hosts a website that contains specially crafted Silverlight content that is designed to exploit the vulnerability, and then convinces a user to view the website. In all cases, however, an attacker would have no way to force users to visit a website. Instead, an attacker would have to convince users to visit a website, typically by getting them to click a link in an email message or in an Instant Messenger message that takes them to the attacker's website. It could also be possible to display specially crafted web content by using banner advertisements or by using other methods to deliver web content to affected systems.
SophosLabs comments The patch will upgrade affected Silverlight installations to version 5.1.30214.0. The vulnerability can be mitigated by disabling Silverlight in Internet browsers.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date 11 Mar 2014
Affected software Microsoft Silverlight 5
References
Credits
  • MAPP
Revisions
  • March 11, 2014 - 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.