Debian DLA-2918-1 : debian-edu-config - LTS security update

critical Nessus Plugin ID 158026

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Synopsis

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

Description

The remote Debian 9 host has a package installed that is affected by a vulnerability as referenced in the dla-2918 advisory.

Marcel Neumann, Robert Altschaffel, Loris Guba and Dustin Hermann discovered that debian-edu-config, a set of configuration files used for the Debian Edu blend configured insecure permissions for the user web shares (~/public_html), which could result in privilege escalation. If PHP functionality is needed for the user web shares, please refer to /usr/share/doc/debian-edu-config/README.public_html_with_PHP- CGI+suExec.md For Debian 9 stretch, this problem has been fixed in version 1.929+deb9u5. We recommend that you upgrade your debian-edu-config packages. For the detailed security status of debian-edu-config please refer to its security tracker page at: https://security-tracker.debian.org/tracker/debian-edu-config 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

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 debian-edu-config packages.

For Debian 9 stretch, this problem has been fixed in version 1.929+deb9u5.

Plugin Details

Severity: Critical

ID: 158026

File Name: debian_DLA-2918.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/13/2022

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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-2021-20001

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: p-cpe:/a:debian:debian_linux:debian-edu-config, cpe:/o:debian:debian_linux:9.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/12/2022

Vulnerability Publication Date: 2/11/2022

Reference Information

CVE: CVE-2021-20001

Detections

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