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Ubuntu 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS : Netplan regression (USN-6851-2)

info Nessus Plugin ID 201128

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-6851-2 advisory.

 USN-6851-1 fixed vulnerabilities in Netplan. The update lead to the discovery of a regression in netplan which caused systemctl enable to fail on systems where systemd is not running. This update fixes the problem.

 We apologize for the inconvenience.

 Original advisory details:

 Andreas Hasenack discovered that netplan incorrectly handled the permissions for netdev files containing wireguard configuration. An attacker could use this to obtain wireguard secret keys.

 It was discovered that netplan configuration could be manipulated into injecting arbitrary commands while setting up network interfaces. An attacker could use this to execute arbitrary commands or escalate privileges.

Tenable has extracted the preceding description block directly from the Ubuntu 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

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-6851-2

Plugin Details

Severity: Info

ID: 201128

File Name: ubuntu_USN-6851-2.nasl

Version: 1.2

Type: local

Agent: unix

Published: 6/28/2024

Updated: 8/27/2024

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:23.10, p-cpe:/a:canonical:ubuntu_linux:netplan.io, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python3-netplan, p-cpe:/a:canonical:ubuntu_linux:libnetplan0, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:netplan-generator, p-cpe:/a:canonical:ubuntu_linux:libnetplan-dev, p-cpe:/a:canonical:ubuntu_linux:libnetplan1

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 6/28/2024

Vulnerability Publication Date: 6/28/2024

Reference Information

USN: 6851-2