Debian dla-3706 : netatalk - security update

critical Nessus Plugin ID 214481

Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3706 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3706-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany January 04, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : netatalk Version : 3.1.12~ds-3+deb10u5 CVE ID : CVE-2022-22995 Debian Bug : 1053545

Corentin BAYET, Etienne HELLUY-LAFONT and Luca MORO of Synacktiv discovered a symlink redirection vulnerability in Netatalk, the Apple Filing Protocol service. The create_appledesktop_folder function of netatalk can be used to unsafely move files outside the shared volume using the mv system utility.
The create_appledesktop_folder function is called when netatalk is configured to use the legacy AppleDouble v2 format of file system meta data.

By using the features of another file sharing protocol, like SMB, an attacker could abuse this primitive to create an arbitrary symbolic link and move it outside the share. The attacker could then reuse the created symlink to write arbitrary files on the targeted system. On the targeted device where it was demonstrated, writing arbitrary files on the system resulted in a remote code execution.

For Debian 10 buster, this problem has been fixed in version 3.1.12~ds-3+deb10u5.

We recommend that you upgrade your netatalk packages.

For the detailed security status of netatalk please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/netatalk

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the netatalk packages.

Plugin Details

Severity: Critical

ID: 214481

File Name: debian_DLA-3706.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 1/22/2025

Updated: 1/22/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2022-22995

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:netatalk, p-cpe:/a:debian:debian_linux:netatalk-dbg

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/4/2024

Vulnerability Publication Date: 3/25/2022

Reference Information

CVE: CVE-2022-22995

Detections

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