Detections
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Oracle Linux 8 : container-tools:2.0 (ELSA-2021-0706)

high Nessus Plugin ID 147170

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-0706 advisory.

 - A flaw was found in podman before 1.7.0. File permissions for non-root users running in a privileged container are not correctly checked. This flaw can be abused by a low-privileged user inside the container to access any other file in the container, even if owned by the root user inside the container. It does not allow to directly escape the container, though being a privileged container means that a lot of security features are disabled when running the container. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-20188)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2021-0706.html

Plugin Details

Severity: High

ID: 147170

File Name: oraclelinux_ELSA-2021-0706.nasl

Version: 1.5

Type: local

Agent: unix

Published: 3/5/2021

Updated: 9/22/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

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

CVSS Score Source: CVE-2021-20188

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:buildah, p-cpe:/a:oracle:linux:buildah-tests, p-cpe:/a:oracle:linux:cockpit-podman, p-cpe:/a:oracle:linux:conmon, p-cpe:/a:oracle:linux:container-selinux, p-cpe:/a:oracle:linux:containernetworking-plugins, p-cpe:/a:oracle:linux:containers-common, p-cpe:/a:oracle:linux:crit, p-cpe:/a:oracle:linux:criu, p-cpe:/a:oracle:linux:fuse-overlayfs, p-cpe:/a:oracle:linux:podman, p-cpe:/a:oracle:linux:podman-docker, p-cpe:/a:oracle:linux:podman-remote, p-cpe:/a:oracle:linux:podman-tests, p-cpe:/a:oracle:linux:python-podman-api, p-cpe:/a:oracle:linux:python3-criu, p-cpe:/a:oracle:linux:runc, p-cpe:/a:oracle:linux:skopeo, p-cpe:/a:oracle:linux:skopeo-tests, p-cpe:/a:oracle:linux:slirp4netns, p-cpe:/a:oracle:linux:udica

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/5/2021

Vulnerability Publication Date: 2/11/2021

Reference Information

CVE: CVE-2021-20188