JPCERT-AT-2024-0006
                                                             JPCERT/CC
                                                            2024-02-14

                 <<< JPCERT/CC Alert 2024-02-14 >>>

         Microsoft Releases February 2024 Security Updates

       https://www.jpcert.or.jp/english/at/2024/at230006.html


I. Overview
Microsoft has released February 2024 Security Updates to address the
vulnerabilities in their products. Remote attackers leveraging
these vulnerabilities may be able to execute arbitrary code. It is
recommended to check the information provided by Microsoft and
apply the updates.

    Microsoft Corporation
    February 2024 Security Updates
    https://msrc.microsoft.com/update-guide/en-us/releaseNote/2024-Feb

    Microsoft Corporation
    Microsoft Security Updates for February 2024 (Monthly) (Japanese)
    https://msrc.microsoft.com/blog/2024/02/202402-security-update/

According to Microsoft, among the vulnerabilities, the following
vulnerabilities have been confirmed to be exploited in the wild. Please
consider applying the security update programs by referring to the
information provided by Microsoft.

    CVE-2024-21351
    Windows SmartScreen Security Feature Bypass Vulnerability
    https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21351

    CVE-2024-21412
    Internet Shortcut Files Security Feature Bypass Vulnerability
    https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21412

Trend Micro has published a blog about attacks that exploit the
vulnerability (CVE-2024-21412). The attack attempts to infect malware
by inducing users to run a .url file that exploits the vulnerability
on platform such as forex trading forums.

    Trend Micro
    CVE-2024-21412: Water Hydra Targets Traders with Microsoft Defender SmartScreen Zero-Day
    https://www.trendmicro.com/en_us/research/24/b/cve202421412-water-hydra-targets-traders-with-windows-defender-s.html


II. Solution
Please apply the security update programs through Microsoft Update,
Windows Update, etc. as soon as possible.

    Microsoft Update Catalog
    https://www.catalog.update.microsoft.com/

    Windows Update: FAQ
    https://support.microsoft.com/en-us/help/12373/windows-update-faq


III. References
    Microsoft Corporation
    Release Notes
    https://msrc.microsoft.com/update-guide/releaseNote


If you have any information regarding this alert, please contact
JPCERT/CC.

======================================================================
JPCERT Coordination Center (Early Warning Group)
MAIL: ew-info@jpcert.or.jp
https://www.jpcert.or.jp/english/