Insecure Inherited Permissions in grub - CVE-2021-3981

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Main Vulnerability Database Vulnerabilities #VU64272

Insecure Inherited Permissions in grub - CVE-2021-3981

Published: June 14, 2022


Vulnerability identifier: #VU64272
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3981
CWE-ID: CWE-277
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: GNU
Affected software:
grub

Detailed vulnerability description

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

The vulnerability exists due to incorrect default permissions for in grub.cfg file that are set by the application. A local user with access to the system can view contents of files and directories.


How to mitigate CVE-2021-3981

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources