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Amazon Linux 2023 : flatpak, flatpak-devel, flatpak-libs (ALAS2023-2024-745)

critical Nessus Plugin ID 209992

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-745 advisory.

 A sandbox escape vulnerability was found in Flatpak due to a symlink-following issue when mounting persistent directories. This flaw allows a local user or attacker to craft a symbolic link that can bypass the intended restrictions, enabling access to and modification of files outside the designated sandbox. As a result, the attacker could potentially manipulate the file system, leading to unauthorized actions that compromise the security and integrity of the system.

 Flatpak is not providing a security boundary that protects the OS from untrusted content in the flatpak.
 Flatpak applications should be vetted and reviewed with the same attention as regular OS packages. It should be assumed that an installed flatpak shares the same privileges and access than the user running it. (CVE-2024-42472)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'dnf update flatpak --releasever 2023.6.20241028' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2024-745.html

https://alas.aws.amazon.com/cve/html/CVE-2024-42472.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Critical

ID: 209992

File Name: al2023_ALAS2023-2024-745.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/31/2024

Updated: 10/31/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.1

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2024-42472

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:flatpak-tests-debuginfo, p-cpe:/a:amazon:linux:flatpak-tests, p-cpe:/a:amazon:linux:flatpak-debugsource, p-cpe:/a:amazon:linux:flatpak-selinux, p-cpe:/a:amazon:linux:flatpak-session-helper-debuginfo, p-cpe:/a:amazon:linux:flatpak, p-cpe:/a:amazon:linux:flatpak-libs, p-cpe:/a:amazon:linux:flatpak-debuginfo, p-cpe:/a:amazon:linux:flatpak-devel, p-cpe:/a:amazon:linux:flatpak-session-helper, p-cpe:/a:amazon:linux:flatpak-libs-debuginfo, cpe:/o:amazon:linux:2023

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/24/2024

Vulnerability Publication Date: 8/14/2024

Reference Information

CVE: CVE-2024-42472