Security features bypass in Microsoft Windows and Windows Server - CVE-2022-34303

Vulnerability identifier: #VU66350

CSH Severity: Low

CVSS v4: 7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-34303

CWE-ID: CWE-254

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows an attacker to bypass Secure Boot.

The vulnerability exists due to unspecified error. An attacker with physical access to the system can bypass Secure Boot and gain unauthorized access to the system.

Microsoft Windows
Windows Server
Oracle Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
fwupd (Red Hat package)

Install updates from vendor's website.

fwupd (Red Hat package) - update to 1.8.10-2.el9

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-34303
• https://portal.msrc.microsoft.com/security-guidance/advisory/ADV990001

• Crypto Pro Boot Loader Secure Boot bypass in Microsoft Windows
• Red Hat Enterprise Linux 9 update for fwupd
• Multiple vulnerabilities in Oracle Linux