|CVE-2019-1239||VBScript Remote Code Execution Vulnerability||Internet Explorer 11||Critical||08-10-2019|
Brief overview of the risk:
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
Detailed Information on the risk:
In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked “safe for initialization” in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.
The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.
Further information on this vulnerability is available at : CVE-2019-1239
Affected SoftwareInternet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems
Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems
Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems
Internet Explorer 11 on Windows Server 2019