Information disclosure in Windows Secure Boot

Published: 2019-10-09 | Updated: 2019-10-09
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2019-1368
CWE ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software Windows Subscribe
Windows Server
Vendor Microsoft

Security Advisory

This security advisory describes one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

Severity: Low

CVSSv3: 2.1 [CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1368

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Description

The vulnerability allows a local attacker to gain access to sensitive information.

The vulnerability exists due incorrect restrictions for the debugging functionality in Windows Secure Boot. A local attacker with physical access to the system can disclose kernel memory.

Successful exploitation of the vulnerability requires that Windows Secure Boot is enabled.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1803, 10 1809, 10 1903

Windows Server: 1803, 1903, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1368

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.