A zabbix security update has been released for Debian GNU/Linux 9 LTS to address an issue where an attacker could bypass checks and potentially change the configuration of Zabbix Frontend.

DLA 2914-1: zabbix security update

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Debian LTS Advisory DLA-2914-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Sylvain Beucler
February 07, 2022   https://wiki.debian.org/LTS
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Package : zabbix
Version : 1:3.0.32+dfsg-0+deb9u2
CVE ID : CVE-2022-23134

Thomas Chauchefoin from SonarSource discovered that in Zabbix, a
server/client network monitoring system, after the initial setup
process, some steps of setup.php file are reachable not only by
super-administrators, but by unauthenticated users as well. An
attacker could bypass checks and potentially change the configuration
of Zabbix Frontend.

For Debian 9 stretch, this problem has been fixed in version
1:3.0.32+dfsg-0+deb9u2.

We recommend that you upgrade your zabbix packages.

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

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