SB2024091097 - Spoofing attack in Microsoft Windows MSHTML Platform and Internet Explorer

Description

This security bulletin contains information about 1 security vulnerability.

1) Spoofing attack (CVE-ID: CVE-2024-43461)

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to the way the Internet Explorer displays a user prompt after a file is downloaded. A remote attacker can create a specially crafted filename that causes the true file extension to be hidden, trick the victim into downloading it and potentially compromise the affected system.

Note, the vulnerability is being actively exploited in the wild.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-43461
• https://www.zerodayinitiative.com/blog/2024/9/10/the-september-2024-security-update-review
• https://www.zerodayinitiative.com/advisories/ZDI-24-1207/