Vulnerability in Microsoft OLE Could Allow Remote Code Execution

Number: AL14-036
Date: 22 October 2014


The purpose of this Alert is to bring attention to Microsoft's security advisory regarding an OLE object vulnerability in all supported releases of Microsoft Windows (excluding Server 2003) being used in targeted attacks.


CCIRC is aware of a vulnerability affecting all supported releases of Microsoft Windows (excluding Server 2003). Attackers could exploit this vulnerability by creating a specially crafted Microsoft Office file that contains an OLE object, then distributing it to users. If users with vulnerable systems open the file, the exploited vulnerability would give malicious actors the same user rights as the current user. Successful exploitation allows for the execution of arbitrary code.

CVE Reference: CVE-2014-6352

Suggested action

CCIRC recommends that organizations review the following mitigation steps and consider their implementation in the context of their network environment:


Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589

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