CVE-2017-8742

Microsoft PowerPoint Remote Code Execution Vulnerability

CVE-2017-8742 is fixed in 14 products on 1 platform, first by KB3213644, released September 15, 2017. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
n/a
Important
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.2212
97th percentile

<p>A remote code execution vulnerability exists in Microsoft PowerPoint software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.</p> <p>Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office PowerPoint software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.</p> <p>Note that the Preview Pane is not an attack vector for this vulnerability. The security update addresses the vulnerability by correcting how Microsoft PowerPoint handles objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Office Compatibility Pack Service Pack 3 KB3213644 Sep 15, 2017
Microsoft Office Web Apps 2010 Service Pack 2 KB3213632 Sep 15, 2017
Microsoft Office Web Apps Server 2013 Service Pack 1 KB3213562 Sep 15, 2017
Microsoft PowerPoint 2007 Service Pack 3 KB3213642 Sep 15, 2017
Microsoft PowerPoint 2010 Service Pack 2 (32-bit editions) KB3128027 Sep 15, 2017
Microsoft PowerPoint 2010 Service Pack 2 (64-bit editions) KB3128027 Sep 15, 2017
Microsoft PowerPoint 2013 RT Service Pack 1 KB4011069 Sep 15, 2017
Microsoft PowerPoint 2013 Service Pack 1 (32-bit editions) KB4011069 Sep 15, 2017
Microsoft PowerPoint 2013 Service Pack 1 (64-bit editions) KB4011069 Sep 15, 2017
Microsoft PowerPoint 2016 (32-bit edition) KB4011041 Sep 15, 2017
Microsoft PowerPoint 2016 (64-bit edition) KB4011041 Sep 15, 2017
Microsoft SharePoint Enterprise Server 2016 KB4011127 Sep 15, 2017
Microsoft SharePoint Server 2013 Service Pack 1 KB3213560 Sep 15, 2017
PowerPoint Viewer 2010 32-bit edition KB3128030 Sep 15, 2017