CVE-2026-52817 | BDVDB-2026-360902 Detail
Linuxfabrikmonitoring-plugins
Description#
Linuxfabrik Monitoring Plugins provides monitoring plugins for Icinga, Nagios, and related systems. Prior to version 5.1.0, the shipped assets/sudoers/Debian.sudoers policy allowed the nagios or icinga account to execute /usr/bin/apt-get as root without restricting its arguments. An attacker who already controls that monitoring account can supply the APT::Update::Pre-Invoke option to execute an arbitrary command while apt-get runs with root privileges, resulting in a root shell and complete compromise of the host. The vulnerable rule supports the check-plugins/deb-updates/deb-updates plugin, but it authorized arbitrary apt-get argument sequences rather than only the required apt-get update --quiet 2 command. This issue is fixed in version 5.1.0.
Impact#
Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
References#
- https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-8w6w-23mq-h8rg
- https://github.com/Linuxfabrik/monitoring-plugins/commit/694b5daeebadc9a51428f3de1acff7b1f737642f
- https://github.com/Linuxfabrik/monitoring-plugins/blob/main/CHANGELOG.md#v510---2026-05-30
- https://github.com/Linuxfabrik/monitoring-plugins/releases/tag/v5.1.0
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.