Icinga icinga2 up to 2.13.12/2.14.6/2.15.0 PID File Parser unnecessary privileges

Summaryinfo

A vulnerability was found in Icinga icinga2 up to 2.13.12/2.14.6/2.15.0 and classified as problematic. Impacted is an unknown function of the component PID File Parser. Such manipulation leads to unnecessary privileges. This vulnerability is referenced as CVE-2025-61909. The attack can only be performed from a local environment. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Icinga icinga2 up to 2.13.12/2.14.6/2.15.0. It has been rated as problematic. Affected by this issue is an unknown code of the component PID File Parser. The manipulation with an unknown input leads to a unnecessary privileges vulnerability. Using CWE to declare the problem leads to CWE-250. The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses. Impacted is availability. CVE summarizes:

Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-61909 since 10/04/2025. The exploitation is known to be easy. Local access is required to approach this attack. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 270719 (Linux Distros Unpatched Vulnerability : CVE-2025-61909), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.13.13, 2.14.7 or 2.15.1 eliminates this vulnerability. Applying the patch 51ec73cbd922a76fc0f60e1d8d33acd7caa5d587 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (270719). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Icinga

Name

• icinga2

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.13.0
• 2.13.1
• 2.13.2
• 2.13.3
• 2.13.4
• 2.13.5
• 2.13.6
• 2.13.7
• 2.13.8
• 2.13.9
• 2.13.10
• 2.13.11
• 2.13.12
• 2.14
• 2.14.0
• 2.14.1
• 2.14.2
• 2.14.3
• 2.14.4
• 2.14.5
• 2.14.6
• 2.15.0

License

• open-source

Website

• Product: https://github.com/Icinga/icinga2/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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