[German]ACROS Security has released a micropatch for the vulnerability CVE-2020-1380 (Internet Explorer scripting engine memory corruption ) for Windows 7 and Server 2008 R2 (without ESU license). The vulnerability is now being exploited.
The vulnerability CVE-2020-1380
CVE-2020-1380 was issued for a scripting engine memory corruption vulnerability in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. Microsoft writes about this:
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 privileges, an attacker who successfully exploited the vulnerability could take control of an affected system. The attacker could then install programs, view, modify, or delete data, or create new accounts with full user rights.
In a Web-based attack scenario, an attacker could set up a specially crafted Web site that uses Internet Explorer to exploit the vulnerability and then trick a user into visiting the Web site. An attacker could also embed an ActiveX control that is marked as “initialization-safe” in an application or Microsoft Office document that hosts the Internet Explorer graphics rendering engine. The attacker can also exploit compromised Web sites and Web sites that accept or host user-provided content or advertising messages. These Web sites may contain specially crafted content that could be used to exploit the vulnerability.
On August 11, 2020, Microsoft released a security update for Internet Explorer 11 that addresses the vulnerability and closes the vulnerability in the scripting engine. The fix is included in the Rollup Update for Windows 7 SP1. However, users of Windows 7 SP1 and Windows Server 2008 R2 who do not have an ESU license will no longer receive the security updates released by Microsoft.
0patch-Fix for Windows 7 SP1/Server 2008 R2
ACROS Security has developed a micropatch for the vulnerability CVE-2020-1380. I got aware of the information about the release of the micropatch for Windows 7 SP1 and Windows Server 2008 R2 via Twitter.
This micropatch is now available for 0patch users with PRO license and is already applied to all online computers with 0patch Agent (except in non-standard enterprise configurations). As always, there is no need to restart the computer and users’ work is not interrupted.
For information on how the 0patch Agent works, which loads the micro-patches into memory at runtime of an application, please refer to the blog posts (e.g. here) I have linked below.
Windows 7: Forcing February 2020 Security Updates – Part 1
Windows 7: Securing with the 0patch solution – Part 2
Windows 7/Server 2008/R2: 0patch delivers security patches after support ends
Project: Windows 7/Server 2008/R2 Life Extension & 0patch one month trial
0patch: Fix for Internet Explorer 0-day vulnerability CVE-2020-0674
0patch: Fix for Windows Installer flaw CVE-2020-0683
0patch fix for Windows GDI+ vulnerability CVE-2020-0881
0-day vulnerability in Windows Adobe Type Library
0patch fixes CVE-2020-0687 in Windows 7/Server 2008 R2
0patch fixes CVE-2020-1048 in Windows 7/Server 2008 R2
0patch fixes CVE-2020-1015 in Windows 7/Server 2008 R2
0patch for 0-day RCE vulnerability in Zoom for Windows
Windows Server 2008 R2: 0patch fixes SIGRed vulnerability
0patch fixes CVE-2020-1113 in Windows 7/Server 2008 R2
0patch fixes CVE-2020-1337 in Windows 7/Server 2008 R2
0patch fixes CVE-2020-1530 in Windows 7/Server 2008 R2