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EulerOS 2.0 SP9 : grub2 (EulerOS-SA-2022-1028)

medium Nessus Plugin ID 157191

Synopsis

The remote EulerOS host is missing a security update.

Description

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

 - GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions. (CVE-2020-15705)

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?f19043ac

Plugin Details

Severity: Medium

ID: 157191

File Name: EulerOS_SA-2022-1028.nasl

Version: 1.3

Type: local

Published: 1/28/2022

Updated: 12/5/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.3

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

CVSS Score Source: CVE-2020-15705

CVSS v3

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.6

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:grub2-common, p-cpe:/a:huawei:euleros:grub2-efi-x64, p-cpe:/a:huawei:euleros:grub2-efi-x64-modules, p-cpe:/a:huawei:euleros:grub2-pc, p-cpe:/a:huawei:euleros:grub2-pc-modules, p-cpe:/a:huawei:euleros:grub2-tools, p-cpe:/a:huawei:euleros:grub2-tools-efi, p-cpe:/a:huawei:euleros:grub2-tools-extra, p-cpe:/a:huawei:euleros:grub2-tools-minimal, cpe:/o:huawei:euleros:2.0

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/28/2022

Vulnerability Publication Date: 7/29/2020

Reference Information

CVE: CVE-2020-15705

IAVA: 2020-A-0349