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Amazon Linux 2 : policycoreutils (ALAS-2018-1076)

medium Nessus Plugin ID 117590

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

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).(CVE-2018-1063)

Solution

Run 'yum update policycoreutils' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-1076.html

Plugin Details

Severity: Medium

ID: 117590

File Name: al2_ALAS-2018-1076.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/19/2018

Updated: 8/6/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, 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:amazon:linux:policycoreutils-python, p-cpe:/a:amazon:linux:policycoreutils-sandbox, p-cpe:/a:amazon:linux:policycoreutils-gui, p-cpe:/a:amazon:linux:policycoreutils-newrole, p-cpe:/a:amazon:linux:policycoreutils-debuginfo, p-cpe:/a:amazon:linux:policycoreutils, p-cpe:/a:amazon:linux:policycoreutils-restorecond, p-cpe:/a:amazon:linux:policycoreutils-devel, cpe:/o:amazon:linux:2

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2018

Reference Information

CVE: CVE-2018-1063

ALAS: 2018-1076