Security features bypass in Microsoft BitLocker



Published: 2023-01-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-21563
CWE-ID CWE-254
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU71072

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-21563

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to security features bypass in Windows Boot Manager. An attacker with physical access can bypass the BitLocker Device Encryption feature and gain access to encrypted data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 - 11 22H2

Windows Server: 2008 - 2022

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21563


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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