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The following cyber advisory was issued by the New York State Office of Information Technology Services and is intended for State government entities. The information may or may not be applicable to the general public and, accordingly, the State does not warrant its use for any specific purposes.

ITS ADVISORY NUMBER:
2013-119

DATE(S) ISSUED:
12/10/2013

SUBJECT:
Vulnerability in Microsoft Scripting Runtime Object Library Could Allow Remote Code Execution (2909158)

OVERVIEW:

A vulnerability has been discovered in the Microsoft Scripting Runtime Object Library that could allow remote code execution. Microsoft Scripting Runtime Object Library is used when running scripts such as the ones used on websites to enhance usability.  This vulnerability could exploited if a user to visit a specially crafted website. Successful exploitation could result in the attacker gaining the same user rights as the current user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

SYSTEMS AFFECTED:

  • Windows XP
  • Windows Vista
  • Windows 7
  • Windows8
  • Windows RT
  • Windows Server 2003 - 2012

RISK:
Government:

  • Large and medium government entities: High
  • Small government entities: High

Businesses:

  • Large and medium business entities: High
  • Small business entities: High

Home users: High

DESCRIPTION:
A vulnerability has been discovered in the Microsoft Scripting Runtime Object Library that could allow remote code execution.  This vulnerability is caused by the Microsoft Scripting Runtime Object Library improperly handling an object in memory. An attacker could exploit the vulnerability by a user to visit a specially crafted website. Successful exploitation could result in the attacker gaining the same user rights as the current user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

RECOMMENDATIONS:
We recommend the following actions be taken:

  • Apply appropriate patches provided by Microsoft to vulnerable systems immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

REFERENCES:
Microsoft:
https://technet.microsoft.com/en-us/security/bulletin/ms13-099
CVE:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-5056

Deborah A. Snyder

Acting Chief Information Security Officer


 

Cyber Security

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