PT-2021-2580 · Microsoft · Windows Early Launch Antimalware Driver+1

Maxim Suhanov · Published 2021-04-13 · Updated 2023-12-29 · CVE-2021-28447

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:C/A:N

Name of the Vulnerable Software and Affected Versions Windows Early Launch Antimalware Driver (affected versions not specified)

Description The issue is related to a security feature bypass in the Windows Early Launch Antimalware Driver, which may allow an attacker to bypass security features. This could potentially lead to information disclosure. The vulnerability may be exploited to affect the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

BDU:2021-02052

CVE-2021-28447

Affected Products

Windows

Windows Early Launch Antimalware Driver

References · 10

• 🔥 https://bi-zone.medium.com/measured-boot-and-malware-signatures-exploring-two-vulnerabilities-found-in-the-windows-loader-5a4fcc3c4b66 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-28447 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28447 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28447 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28447 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-28447 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-28447 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02052 · Security Note
• https://t.me/cvenotify/17657 · Telegram Post
• https://t.me/cvenotify/17658 · Telegram Post