Amazon Linux 2 : docker (ALASDOCKER-2023-022)

medium Nessus Plugin ID 173967

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Synopsis

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

Description

The version of docker installed on the remote host is prior to 20.10.22-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2DOCKER-2023-022 advisory.

- Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where supplementary groups are not set up properly. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases, potentially gaining access to sensitive information or gaining the ability to execute code in that container. This bug is fixed in Moby (Docker Engine) 20.10.18. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade, this problem can be worked around by not using the `USER $USERNAME` Dockerfile instruction. Instead by calling `ENTRYPOINT [su, -, user]` the supplementary groups will be set up properly. (CVE-2022-36109)

- Docker version 20.10.15, build fd82621 is vulnerable to Insecure Permissions. Unauthorized users outside the Docker container can access any files within the Docker container. (CVE-2022-37708)

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

Solution

Run 'yum update docker' to update your system.

Plugin Details

Severity: Medium

ID: 173967

File Name: al2_ALASDOCKER-2023-022.nasl

Version: 1.5

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 4/6/2023

Updated: 9/15/2023

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

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

CVSS Score Source: CVE-2022-36109

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:docker, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:docker-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/30/2023

Vulnerability Publication Date: 9/9/2022

Reference Information

CVE: CVE-2022-36109, CVE-2022-37708

Detections

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