MS13-022 - Vulnerability in Silverlight Could Allow Remote Code Execution (2814124)

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Details
Vulnerability name/brief description MS13-022 - Vulnerability in Silverlight Could Allow Remote Code Execution (2814124)
CVE/CAN name
Vendor threat level Critical
SophosLabs threat level High
Solution MS13-022
Vendor description The vulnerability could allow remote code execution if an attacker hosts a website that contains a specially crafted Silverlight application that could exploit this vulnerability and then convinces a user to view the website.
SophosLabs comments SophosLabs rate this vulnerability as High as it can result in remote code execution and is likely to affect larger infrastructures that utilize Silverlight.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date Discovery date unknown
Affected software Microsoft Silverlight 5 when installed on Mac
Microsoft Silverlight 5 Developer Runtime when installed on Mac
Microsoft Silverlight 5 when installed on all supported releases of Microsoft Windows clients
Microsoft Silverlight 5 Developer Runtime when installed on all supported releases of Microsoft Windows clients
Microsoft Silverlight 5 when installed on all supported releases of Microsoft Windows servers
Microsoft Silverlight 5 Developer Runtime when installed on all supported releases of Microsoft Windows servers
References
Credits
  • MAPP
Revisions
  • March 12, 2013 - 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.