Number: AL17-005
Date: 13 April 2017
Purpose
The purpose of this alert is to bring attention to a recently disclosed vulnerability in the Encapsulated PostScript filter of Microsoft Office and its exploitation.
Assessment
CCIRC is aware of attacks exploiting recently patched zero-day vulnerabilities. As a result, CCIRC would like to raise awareness concerning this potentially serious vulnerability, as it may be exploited by malicious actors to perform a range of fraudulent activities, such as accessing sensitive information and installing malware.
Suggested Action
Due to the elevated risk that this vulnerability presents, CCIRC recommends that system administrators test and deploy the vendor-released updates to affected applications accordingly. CCIRC recommends that priority is given to that patch.
References:
Microsoft Guidance Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/2017-2605
Microsoft Knowledge Based
https://support.microsoft.com/en-us/help/2479871/security-settings-for-graphic-filters-for-microsoft-office-365
TR11-001 Malware Infection Recovery Guide
http://www.publicsafety.gc.ca/cnt/rsrcs/cybr-ctr/2011/tr11-001-eng.aspx
TR15-004 Top 30 Targeted High Risk Vulnerabilities
http://www.publicsafety.gc.ca/cnt/rsrcs/cybr-ctr/2015/tr15-004-eng.aspx