Amazon Linux 2 : yum-utils (ALAS-2018-1063)

High Nessus Plugin ID 112088

Synopsis

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

Description

A directory traversal issue was found in reposync, a part of yum-utils, where reposync fails to sanitize paths in remote repository configuration files. If an attacker controls a repository, they may be able to copy files outside of the destination directory on the targeted system via path traversal. If reposync is running with heightened privileges on a targeted system, this flaw could potentially result in system compromise via the overwriting of critical system files. (CVE-2018-10897)

Solution

Run 'yum update yum-utils' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-1063.html

Plugin Details

Severity: High

ID: 112088

File Name: al2_ALAS-2018-1063.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/08/24

Modified: 2018/10/17

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

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

CVSS v3.0

Base Score: 8.1

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:yum-NetworkManager-dispatcher, p-cpe:/a:amazon:linux:yum-plugin-aliases, p-cpe:/a:amazon:linux:yum-plugin-auto-update-debug-info, p-cpe:/a:amazon:linux:yum-plugin-changelog, p-cpe:/a:amazon:linux:yum-plugin-copr, p-cpe:/a:amazon:linux:yum-plugin-fastestmirror, p-cpe:/a:amazon:linux:yum-plugin-filter-data, p-cpe:/a:amazon:linux:yum-plugin-fs-snapshot, p-cpe:/a:amazon:linux:yum-plugin-keys, p-cpe:/a:amazon:linux:yum-plugin-list-data, p-cpe:/a:amazon:linux:yum-plugin-local, p-cpe:/a:amazon:linux:yum-plugin-merge-conf, p-cpe:/a:amazon:linux:yum-plugin-ovl, p-cpe:/a:amazon:linux:yum-plugin-post-transaction-actions, p-cpe:/a:amazon:linux:yum-plugin-pre-transaction-actions, p-cpe:/a:amazon:linux:yum-plugin-priorities, p-cpe:/a:amazon:linux:yum-plugin-protectbase, p-cpe:/a:amazon:linux:yum-plugin-ps, p-cpe:/a:amazon:linux:yum-plugin-remove-with-leaves, p-cpe:/a:amazon:linux:yum-plugin-rpm-warm-cache, p-cpe:/a:amazon:linux:yum-plugin-show-leaves, p-cpe:/a:amazon:linux:yum-plugin-tmprepo, p-cpe:/a:amazon:linux:yum-plugin-tsflags, p-cpe:/a:amazon:linux:yum-plugin-upgrade-helper, p-cpe:/a:amazon:linux:yum-plugin-verify, p-cpe:/a:amazon:linux:yum-plugin-versionlock, p-cpe:/a:amazon:linux:yum-updateonboot, p-cpe:/a:amazon:linux:yum-utils, cpe:/o:amazon:linux:2

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

Patch Publication Date: 2018/08/21

Reference Information

CVE: CVE-2018-10897

ALAS: 2018-1063