PT-2019-1811 · Microsoft · Windows

James Forshaw · Published 2019-04-09 · Updated 2020-08-24 · CVE-2019-0732

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows (affected versions not specified)

Description The issue is related to the improper handling of calls to the LUAFV driver (luafv.sys) in the Windows operating system. This can be exploited by an attacker to bypass the user-mode code integrity policy (UMCI) using a specially crafted application. It is also described as a security feature bypass vulnerability that could allow an attacker to bypass Device Guard.

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

Exploit

Incorrect Authorization

Weakness Enumeration

CWE-863

CWE-254

Related Identifiers

BDU:2019-01463

CVE-2019-0732

Affected Products

Windows

References · 8

• 🔥 https://exploit-db.com/exploits/46716 · Exploit
• https://osv.dev/vulnerability/CVE-2019-0732 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0732 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2019-0732 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-0732 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0732 · Security Note
• https://bdu.fstec.ru/vul/2019-01463 · Security Note
• http://packetstormsecurity.com/files/152536/Microsoft-Windows-LUAFV-NtSetCachedSigningLevel-Device-Guard-Bypass.html · Note