Security features bypass in Microsoft Windows - CVE-2021-34466

Vulnerability identifier: #VU54837

CSH Severity: Low

CVSS v4: 5.3 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-34466

CWE-ID: CWE-254

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists due to security feature bypass issue in Windows Hello. An attacker with physical access can gain elevated privileges on the target system.

Microsoft Windows
Solutions Enabler Virtual Appliance
Solutions Enabler
Unisphere for PowerMax Virtual Appliance
Unisphere for PowerMax

Install updates from vendor's website.

Solutions Enabler Virtual Appliance - addressed in versions 9.1.0.17, 9.2.2.0
Solutions Enabler - addressed in versions 9.1.0.17, 9.2.2.0
Unisphere for PowerMax Virtual Appliance - addressed in versions 9.1.0.28, 9.2.2.2
Unisphere for PowerMax - addressed in versions 9.1.0.28, 9.2.2.2

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34466

• Security features bypass in Microsoft Windows Hello
• Multiple vulnerabilities in Dell EMC Unisphere for PowerMax and Dell EMC Solutions Enabler