Checkmk werks level1 November 2023

checkmk-werks-lvl1@lists.checkmk.com

1 participants
219 discussions

[2.3.0] Checkmk Werk 14216 created: Prevent LDAP users from disappearing at remote sites

by Checkmk werks level 1

Title: Prevent LDAP users from disappearing at remote sites Class: fix Compatible: compat Component: multisite Date: 1699364878 Edition: cre Level: 1 Version: 2.3.0b1 If a remote site had ldap connectors specified, which where not available at the central site, the users on the remote site were regularly removed during activate changes. This error was not always clearly visible, as the ldap users were resynchronised immediately after activate changes. However, this introduced race conditions, such as users not known to the monitoring core or automatic logouts at the remote site.

10 months, 1 week

[2.3.0] Checkmk Werk 14217 created: No longer sporadically report stale services which are based on piggyback data

by Checkmk werks level 1

Title: No longer sporadically report stale services which are based on piggyback data Class: fix Compatible: compat Component: checks Date: 1699980710 Edition: cre Level: 1 Version: 2.3.0b1 If the check interval of a host was greater than 1 minute, any of its reported piggyback data was at risk of being ignored by the target host because of being too old.

10 months, 1 week

[2.3.0] Checkmk Werk 16145 created: "Always up" hosts can always notify

by Checkmk werks level 1

Title: "Always up" hosts can always notify Class: fix Compatible: compat Component: core Date: 1699884551 Edition: cee Level: 1 Version: 2.3.0b1 Do not postpone notifications for "always up" hosts. The notification logic would wrongly assume that "always up" hosts may, in fact, be down and erroneously postpone notifications. This has been fixed, such hosts are never down.

10 months, 1 week

[2.1.0] Checkmk Werk 16216 created: Resolve Runas section in Checkmk Linux agent

by Checkmk werks level 1

Title: Resolve Runas section in Checkmk Linux agent Class: fix Compatible: compat Component: checks Date: 1699515827 Edition: cre Knowledge: undoc Level: 1 State: unknown Version: 2.1.0p37 Prior to this werk, the Runas section of the Checkmk agent contained a wrong trailing slash which resulted in an error with the find command. As a direct consequence, some or potentially all Runas rules were inadvertently ignored, leading to the plugin, not intended for root, being executed with root privileges. This werk fixes this behaviour.

10 months, 1 week

[2.1.0] Checkmk Werk 16219 created: Limit length of Hostname

by Checkmk werks level 1

Title: Limit length of Hostname Class: security Compatible: compat Component: wato Date: 1699601325 Edition: cre Knowledge: undoc Level: 1 State: unknown Version: 2.1.0p37 Prior to this Werk it was possible to create Hosts with arbitrary length. Since Checkmk stores information in files which paths contain the hostname these path could exceed the allowed length leading to various errors to an extend that rendered the usage of parts of the GUI useless. We found this vulnerability internally. Affected Versions: LI: 2.2.0 LI: 2.1.0 LI: 2.0.0 Vulnerability Management: We have rated the issue with a CVSS Score of 2.7 (Low) with the following CVSS vector: <tt>CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L</tt>. We assigned CVE-2023-23549 to this vulnerability. Changes: This Werk adds a maximum length of 253 characters for the hostname.

10 months, 1 week

[2.1.0] Checkmk Werk 16145 deleted: "Always up" hosts can always notify

by Checkmk werks level 1

Werk 16145 was deleted. The following Werk is no longer relevant. Title: "Always up" hosts can always notify Class: fix Compatible: compat Component: core Date: 1699884551 Edition: cee Knowledge: undoc Level: 1 State: unknown Version: 2.1.0p37 Do not postpone notifications for "always up" hosts. The notification logic would wrongly assume that "always up" hosts may, in fact, be down and erroneously postpone notifications. This has been fixed, such hosts are never down.

10 months, 1 week

[2.1.0] Checkmk Werk 16145 created: "Always up" hosts can always notify

by Checkmk werks level 1

Title: "Always up" hosts can always notify Class: fix Compatible: compat Component: core Date: 1699884551 Edition: cee Knowledge: undoc Level: 1 State: unknown Version: 2.1.0p37 Do not postpone notifications for "always up" hosts. The notification logic would wrongly assume that "always up" hosts may, in fact, be down and erroneously postpone notifications. This has been fixed, such hosts are never down.

10 months, 1 week

[2.1.0] Checkmk Werk 16217 created: dcd handle connection failure during phase 1.1 more leniently

by Checkmk werks level 1

Title: dcd handle connection failure during phase 1.1 more leniently Class: fix Compatible: compat Component: dcd Date: 1699533379 Edition: cee Knowledge: doc Level: 1 Version: 2.1.0p37 In some cases, it is possible that the connection fails when the dcd attempts to fetch the result from a remote site during phase 1.1. This werk introduces proper error handling for such scenarios in order to prevent any unexpected follow-up behaviour.

10 months, 1 week

[2.1.0] Checkmk Werk 16215 created: agent_elasticsearch: resolve error when requesting indices stats

by Checkmk werks level 1

Title: agent_elasticsearch: resolve error when requesting indices stats Class: fix Compatible: compat Component: checks Date: 1699277518 Edition: cre Knowledge: undoc Level: 1 State: unknown Version: 2.1.0p37 There is a special error case which arises when trying to request the indices stats from Elasticsearch which has at least one alias pointing to a closed index. In the previous version, the special agent completely failed in such scenarios. This werk resolves this by requesting only the accessible indices.

10 months, 1 week

[2.2.0] Checkmk Werk 16216 created: Resolve Runas section in Checkmk Linux agent

by Checkmk werks level 1

Title: Resolve Runas section in Checkmk Linux agent Class: fix Compatible: compat Component: checks Date: 1699515827 Edition: cre Knowledge: undoc Level: 1 State: unknown Version: 2.2.0p15 Prior to this werk, the Runas section of the Checkmk agent contained a wrong trailing slash which resulted in an error with the find command. As a direct consequence, some or potentially all Runas rules were inadvertently ignored, leading to the plugin, not intended for root, being executed with root privileges. This werk fixes this behaviour.

10 months, 1 week

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Checkmk werks level1 November 2023