Werk #17145: Information leak in mknotifyd

Component

Notifications

Title

Information leak in mknotifyd

Date

Jul 15, 2024

Level

Trivial Change

Class

Security Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.4.0b1	Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p18	Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

When a notification context is sent to mknotifyd a "result message" is generated by mknotifyd and sent back so the original site so it can show if there were problems handling that notification. This result message could contain secrets that were not meant to be sent to remote sites, e.g. passwords/secrets.

These secrets were not processed by the remote site but a rough site would have been able to retrieve these.

This issue was found during internal review.

Affected Versions:

2.3.0
2.2.0
2.1.0
2.0.0 (EOL)

Vulnerability Management:

We have rated the issue with a CVSS Score of 5.3 Medium (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) and assigned CVE-2024-6747.

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