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EulerOS 2.0 SP3 : policycoreutils (EulerOS-SA-2020-1423)

medium Nessus Plugin ID 135552

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the version of the policycoreutils packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

 - Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.(CVE-2018-1063)

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 policycoreutils package.

See Also

http://www.nessus.org/u?4ceaf82f

Plugin Details

Severity: Medium

ID: 135552

File Name: EulerOS_SA-2020-1423.nasl

Version: 1.8

Type: local

Published: 4/15/2020

Updated: 5/13/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.5

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2018-1063

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:policycoreutils, p-cpe:/a:huawei:euleros:policycoreutils-devel, p-cpe:/a:huawei:euleros:policycoreutils-gui, p-cpe:/a:huawei:euleros:policycoreutils-newrole, p-cpe:/a:huawei:euleros:policycoreutils-python, p-cpe:/a:huawei:euleros:policycoreutils-sandbox, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, 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: 4/16/2020

Reference Information

CVE: CVE-2018-1063