Linuxfabrik Monitoring Plugins up to 5.0.x Sudoers Policy Debian.sudoers privileges management

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k5.91-

Summaryinfo

A vulnerability was found in Linuxfabrik Monitoring Plugins up to 5.0.x and classified as problematic. The impacted element is an unknown function of the file assets/sudoers/Debian.sudoers of the component Sudoers Policy. Such manipulation leads to privileges management. This vulnerability is traded as CVE-2026-52817. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linuxfabrik Monitoring Plugins up to 5.0.x. Affected by this issue is an unknown code of the file assets/sudoers/Debian.sudoers of the component Sudoers Policy. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-52817 since 06/08/2026. The exploitation is known to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

It is declared as proof-of-concept.

Upgrading to version 5.1.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Proof-of-Concept

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Monitoring Plugins 5.1.0

Timelineinfo

06/08/2026 CVE reserved
08/19/2026 +72 days Advisory disclosed
08/19/2026 +0 days VulDB entry created
08/19/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-52817 (🔒)
GCVE (CVE): GCVE-0-2026-52817
GCVE (VulDB): GCVE-100-392564

Entryinfo

Created: 08/19/2026 04:59
Changes: 08/19/2026 04:59 (69)
Complete: 🔍
Cache ID: 216::103

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