Endpoint Vulnerability

Microsoft Outlook Remote Code Execution Vulnerability

Description

A remote code execution vulnerability exists in Microsoft Outlook software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user. To exploit the vulnerability, a user must open a specially crafted file with an affected version of Microsoft Outlook 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 that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince the user to open the specially crafted file. Note that the Preview Pane is not an attack vector for this vulnerability. The security update addresses the vulnerability by correcting how Microsoft Outlook handles files in memory.

Affected Products

Microsoft Outlook 2013 RT Service Pack 1,Microsoft Outlook 2010 Service Pack 2 (64-bit editions),Microsoft Outlook 2013 Service Pack 1 (32-bit editions),Microsoft Outlook 2013 Service Pack 1 (64-bit editions),Microsoft Office 2019 for 64-bit editions,Office 365 ProPlus for 64-bit Systems,Microsoft Office 2019 for 32-bit editions,Office 365 ProPlus for 32-bit Systems,Microsoft Outlook 2010 Service Pack 2 (32-bit editions),Microsoft Outlook 2016 x86

References

CVE-2018-8524,