<p>A security feature bypass vulnerability exists in Microsoft Word software when it fails to properly handle .LNK files. 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.</p> <p>To exploit the vulnerability, a user must open a specially crafted file with an affected version of Microsoft Word 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.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Word handles these files.</p>
CVSS Details
- CVSS 3.1 Base Score: 7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Microsoft Office | — | Upgrade to the latest version of Microsoft Office | Oct 13, 2020 | Oct 13, 2020 |
| Msft | — | Security Update for Microsoft Office 2010 (KB4486701) 64-Bit EditionSecurity Update for Microsoft Word 2013 (KB4486692) 32-Bit EditionSecurity Update for Microsoft Word 2010 (KB4486703) 64-Bit EditionSecurity Update for Microsoft Word 2013 (KB4486692) 64-Bit EditionSecurity Update for Microsoft Word 2010 (KB4486703) 32-Bit EditionSecurity Update for Microsoft Office 2010 (KB4486701) 32-Bit Edition | Oct 13, 2020 | Oct 13, 2020 |
| Office For Mac | — | Upgrade to Office for Mac version 16.16.27Upgrade to Office for Mac version 16.42.0 | Oct 13, 2020 | Oct 13, 2020 |
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