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EulerOS Virtualization 2.10.1 : grub2 (EulerOS-SA-2022-2080)

low Nessus Plugin ID 163119

Synopsis

The remote EulerOS Virtualization host is missing a security update.

Description

According to the versions of the grub2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

 - A flaw in grub2 was found where its configuration file, known as grub.cfg, is being created with the wrong permission set allowing non privileged users to read its content. This represents a low severity confidentiality issue, as those users can eventually read any encrypted passwords present in grub.cfg.
 This flaw affects grub2 2.06 and previous versions. This issue has been fixed in grub upstream but no version with the fix is currently released. (CVE-2021-3981)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected grub2 packages.

See Also

http://www.nessus.org/u?b8ffce23

Plugin Details

Severity: Low

ID: 163119

File Name: EulerOS_SA-2022-2080.nasl

Version: 1.2

Type: local

Published: 7/14/2022

Updated: 7/14/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2021-3981

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:grub2-efi-x64, p-cpe:/a:huawei:euleros:grub2-efi-x64-modules, p-cpe:/a:huawei:euleros:grub2-tools-efi, p-cpe:/a:huawei:euleros:grub2-tools, p-cpe:/a:huawei:euleros:grub2-pc-modules, cpe:/o:huawei:euleros:uvp:2.10.1, p-cpe:/a:huawei:euleros:grub2-tools-extra, p-cpe:/a:huawei:euleros:grub2-tools-minimal, p-cpe:/a:huawei:euleros:grub2-pc, p-cpe:/a:huawei:euleros:grub2-common

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2022

Vulnerability Publication Date: 3/10/2022

Reference Information

CVE: CVE-2021-3981