MS13-099 - Vulnerability in Microsoft Scripting Runtime Object Library Could Allow Remote Code Execution (2909158)

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Details
Vulnerability name/brief description MS13-099 - Vulnerability in Microsoft Scripting Runtime Object Library Could Allow Remote Code Execution (2909158)
CVE/CAN name
Vendor threat level Critical
SophosLabs threat level High
Solution MS13-099
Vendor description This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker convinces a user to visit a specially crafted website or a website that hosts specially crafted content. An attacker who successfully exploited this vulnerability could gain the same user rights as the local 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 Although the vulnerability was privately reported, an attacker could potentially use social engineering tricks to convince a user to visit a compromised website that specifically use this vulnerability to attack the user's computer. Hence, SophosLabs encourages all users to apply the update as soon as it is available.
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 Windows XP Service Pack 3 with Windows Script 5.7 
Windows XP Professional x64 Edition Service Pack 2 with Windows Script 5.6 
Windows XP Professional x64 Edition Service Pack 2 with Windows Script 5.7 
Windows Server 2003 Service Pack 2 with Windows Script 5.6 
Windows Server 2003 Service Pack 2 with Windows Script 5.7 
Windows Server 2003 x64 Edition Service Pack 2 with Windows Script 5.6 
Windows Server 2003 x64 Edition Service Pack 2 with Windows Script 5.7 
Windows Server 2003 with SP2 for Itanium-based Systems with Windows Script 5.6 
Windows Server 2003 with SP2 for Itanium-based Systems with Windows Script 5.7 
Windows Vista Service Pack 2 with Windows Script 5.7 
Windows Vista x64 Edition Service Pack 2 with Windows Script 5.7 
Windows Server 2008 for 32-bit Systems Service Pack 2 with Windows Script 5.7 
Windows Server 2008 for x64-based Systems Service Pack 2 with Windows Script 5.7 
Windows Server 2008 for Itanium-based Systems Service Pack 2 with Windows Script 5.7 
Windows 7 for 32-bit Systems Service Pack 1 with Windows Script 5.8 
Windows 7 for x64-based Systems Service Pack 1 with Windows Script 5.8 
Windows Server 2008 R2 for x64-based Systems Service Pack 1 with Windows Script 5.8 
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 with Windows Script 5.8 
Windows 8 for 32-bit Systems with Windows Script 5.8 
Windows 8 for x64-based Systems with Windows Script 5.8 
Windows 8.1 for 32-bit Systems with Windows Script 5.8 
Windows 8.1 for x64-based Systems with Windows Script 5.8 
Windows Server 2012 with Windows Script 5.8 
Windows Server 2012 R2 with Windows Script 5.8 
Windows RT with Windows Script 5.8
Windows RT 8.1 with Windows Script 5.8
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) with Windows Script 5.7 
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) with Windows Script 5.7 
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) with Windows Script 5.8 
Windows Server 2012 (Server Core installation) with Windows Script 5.8 
Windows Server 2012 R2 (Server Core installation) with Windows Script 5.8 
 
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:

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.