Checkmk git commits February 2024

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[Checkmk/checkmk] 28968b: 16172 SEC kaspersky_av: Don't run kav4fs-control o...

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Branch: refs/heads/master Home: https://github.com/Checkmk/checkmk Commit: 28968b0c34533199c8f03e4b0b1bd495221196d9 https://github.com/Checkmk/checkmk/commit/28968b0c34533199c8f03e4b0b1bd4952… Author: Sofia Colakovic <sofia.colakovic(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: A .werks/16172.md M agents/plugins/kaspersky_av A tests/unit-shell/agents/plugins/test_kaspersky_av.sh Log Message: ----------- 16172 SEC kaspersky_av: Don't run kav4fs-control or kesl-control if they aren't owned by root Kaspersky Anti-Virus plugin uses /opt/kaspersky/kav4fs/bin/kav4fs-control and /opt/kaspersky/kesl/bin/kesl-control commands to monitor a Kaspersky Anti-Virus installation. To prevent privilege escalation, the plugin (which is run by root user) must not run executables which can be changed by less privileged users. In the default installation, kav4fs-control and kesl-control commands are owned by root and root is the only user with write permissions, which prevents privilege escalation attacks. With this Werk, the plugin checks if control commands are owned by root and root is the only user with write permissions before running the command. If that's not the case the commands won't be run. This prevents privilege escalation attacks if the permissions of the control commands have been changed. CMK-15318 Change-Id: Ie5de60541dbd76a983c9918ccf48a73ed1ee26f7 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] ff0b04: 15725 FIX Cleanup old Microcore config during upda...

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Branch: refs/heads/2.3.0 Home: https://github.com/Checkmk/checkmk Commit: ff0b0477432250db90395946b6f0219ba7acf284 https://github.com/Checkmk/checkmk/commit/ff0b0477432250db90395946b6f0219ba… Author: Lars Michelsen <lm(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: A .werks/15725.md M cmk/update_config/main.py Log Message: ----------- 15725 FIX Cleanup old Microcore config during update procedure This change prevents a problem which might occur in case the `omd update` did not finish successfully. In this situation, the Microcore might be started with a configuration file from the previous version. This could lead to unexpected behavior. Instead of keeping the old configuration, the update procedure now deletes the file which makes the Microcore fail during startup with a more helpful error message. CMK-16020 Change-Id: I5c7a326d9269ada9ae0f4f8b4e48610bdaffabdb To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] f876de: 15725 FIX Cleanup old Microcore config during upda...

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Branch: refs/heads/master Home: https://github.com/Checkmk/checkmk Commit: f876ded4b9793800fc69b728895c68c92e27184b https://github.com/Checkmk/checkmk/commit/f876ded4b9793800fc69b728895c68c92… Author: Lars Michelsen <lm(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: A .werks/15725.md M cmk/update_config/main.py Log Message: ----------- 15725 FIX Cleanup old Microcore config during update procedure This change prevents a problem which might occur in case the `omd update` did not finish successfully. In this situation, the Microcore might be started with a configuration file from the previous version. This could lead to unexpected behavior. Instead of keeping the old configuration, the update procedure now deletes the file which makes the Microcore fail during startup with a more helpful error message. CMK-16020 Change-Id: I5c7a326d9269ada9ae0f4f8b4e48610bdaffabdb To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] d95cd6: check_http: Allow custom format for values in Chec...

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Branch: refs/heads/master Home: https://github.com/Checkmk/checkmk Commit: d95cd664fa041bf12368753927aba6da4312af65 https://github.com/Checkmk/checkmk/commit/d95cd664fa041bf12368753927aba6da4… Author: Andreas Umbreit <andreas.umbreit(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: M packages/check-http/src/checking_types.rs M packages/check-http/src/checks.rs Log Message: ----------- check_http: Allow custom format for values in CheckResult helper functions Needed to display some values more prettily, e.g., influence the number of shown digits of a float value. CMK-16160 Change-Id: Ieba7b6be023ab8615a5fae6253385d5402c221b4 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] 84d067: omd: move get_editor

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Branch: refs/heads/2.3.0 Home: https://github.com/Checkmk/checkmk Commit: 84d067d77c4380f9978de4d5516932af9ce51801 https://github.com/Checkmk/checkmk/commit/84d067d77c4380f9978de4d5516932af9… Author: Solomon Jacobs <solomon.jacobs(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: M omd/packages/omd/omdlib/main.py M omd/packages/omd/omdlib/utils.py Log Message: ----------- omd: move get_editor Not sure about the cryptic getenv, putenv comment. Change-Id: I37893629c17eb944731ddcf2b3644e54303af6ed Commit: 6950d7e53047f0b8b36ff971b12a14af06b52a19 https://github.com/Checkmk/checkmk/commit/6950d7e53047f0b8b36ff971b12a14af0… Author: Solomon Jacobs <solomon.jacobs(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: M omd/packages/omd/omdlib/main.py Log Message: ----------- omd update: raise instead of sys.exit This makes the handling of an aborted update more uniform. CMK-15866 Change-Id: I7bd4bc1534f60235e8a93dc4ae157ca57786494d Compare: https://github.com/Checkmk/checkmk/compare/a91bc0411ec1...6950d7e53047 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] 4759ef: 16361 SEC Privilege escalation in Windows agent

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Branch: refs/heads/master Home: https://github.com/Checkmk/checkmk Commit: 4759ef01d3a5223f6b79067bff8f9f2bb2dc8970 https://github.com/Checkmk/checkmk/commit/4759ef01d3a5223f6b79067bff8f9f2bb… Author: Maximilian Wirtz <maximilian.wirtz(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: A .werks/16361.md Log Message: ----------- 16361 SEC Privilege escalation in Windows agent In order to execute some system commands Checkmk Windows agent writes cmd files to `C:\Windows\Temp\` and afterwards executes them. The permissions of the files were set restrictive but existing files were not properly handled. If a cmd file already existed and was write protected the agent was not able to rewrite the file but did not handle this case and executed the file nevertheless. We thank Michael Baer (SEC Consult Vulnerability Lab) for reporting this issue. **Affected Versions**: * 2.2.0 * 2.1.0 * 2.0.0 **Indicators of Compromise**: The filename of the cmd file needed to be guessed therefore the proof-of-concept creates a lot of files in `C\Windows\Temp` with the filename `cmk_all_\d+_1.cmd`. These file-creation events could be monitored. **Vulnerability Management**: We have rated the issue with a CVSS Score of 8.8 (High) with the following CVSS vector: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`. We assigned CVE-2024-0670 to this vulnerability. **Changes**: This Werk changes the temp folder and adds a subfolder with more restrictive permissions in which the files are created. Also errors are handled better. Change-Id: I9b6b6dbe68d638c9e0dcf127646783d15f1df589 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] a91bc0: 16361 SEC Privilege escalation in Windows agent

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Branch: refs/heads/2.3.0 Home: https://github.com/Checkmk/checkmk Commit: a91bc0411ec1ae2e45dab2f4cba525794805b031 https://github.com/Checkmk/checkmk/commit/a91bc0411ec1ae2e45dab2f4cba525794… Author: Maximilian Wirtz <maximilian.wirtz(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: A .werks/16361.md Log Message: ----------- 16361 SEC Privilege escalation in Windows agent In order to execute some system commands Checkmk Windows agent writes cmd files to `C:\Windows\Temp\` and afterwards executes them. The permissions of the files were set restrictive but existing files were not properly handled. If a cmd file already existed and was write protected the agent was not able to rewrite the file but did not handle this case and executed the file nevertheless. We thank Michael Baer (SEC Consult Vulnerability Lab) for reporting this issue. **Affected Versions**: * 2.2.0 * 2.1.0 * 2.0.0 **Indicators of Compromise**: The filename of the cmd file needed to be guessed therefore the proof-of-concept creates a lot of files in `C\Windows\Temp` with the filename `cmk_all_\d+_1.cmd`. These file-creation events could be monitored. **Vulnerability Management**: We have rated the issue with a CVSS Score of 8.8 (High) with the following CVSS vector: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`. We assigned CVE-2024-0670 to this vulnerability. **Changes**: This Werk changes the temp folder and adds a subfolder with more restrictive permissions in which the files are created. Also errors are handled better. Change-Id: I9b6b6dbe68d638c9e0dcf127646783d15f1df589 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] 6c7725: 16361 SEC Privilege escalation in Windows agent

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Branch: refs/heads/2.1.0 Home: https://github.com/Checkmk/checkmk Commit: 6c772598aac4018077fadeb0c38b94381cafb27f https://github.com/Checkmk/checkmk/commit/6c772598aac4018077fadeb0c38b94381… Author: Maximilian Wirtz <maximilian.wirtz(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: A .werks/16361 Log Message: ----------- 16361 SEC Privilege escalation in Windows agent In order to execute some system commands Checkmk Windows agent writes cmd files to `C:\Windows\Temp\` and afterwards executes them. The permissions of the files were set restrictive but existing files were not properly handled. If a cmd file already existed and was write protected the agent was not able to rewrite the file but did not handle this case and executed the file nevertheless. We thank Michael Baer (SEC Consult Vulnerability Lab) for reporting this issue. **Affected Versions**: * 2.2.0 * 2.1.0 * 2.0.0 **Indicators of Compromise**: The filename of the cmd file needed to be guessed therefore the proof-of-concept creates a lot of files in `C\Windows\Temp` with the filename `cmk_all_\d+_1.cmd`. These file-creation events could be monitored. **Vulnerability Management**: We have rated the issue with a CVSS Score of 8.8 (High) with the following CVSS vector: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`. We assigned CVE-2024-0670 to this vulnerability. **Changes**: This Werk changes the temp folder and adds a subfolder with more restrictive permissions in which the files are created. Also errors are handled better. Change-Id: I9b6b6dbe68d638c9e0dcf127646783d15f1df589 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] 22de89: 16361 SEC Privilege escalation in Windows agent

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Branch: refs/heads/2.2.0 Home: https://github.com/Checkmk/checkmk Commit: 22de8967ee57635f022996260036f7059c359d77 https://github.com/Checkmk/checkmk/commit/22de8967ee57635f022996260036f7059… Author: Maximilian Wirtz <maximilian.wirtz(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: A .werks/16361 Log Message: ----------- 16361 SEC Privilege escalation in Windows agent In order to execute some system commands Checkmk Windows agent writes cmd files to `C:\Windows\Temp\` and afterwards executes them. The permissions of the files were set restrictive but existing files were not properly handled. If a cmd file already existed and was write protected the agent was not able to rewrite the file but did not handle this case and executed the file nevertheless. We thank Michael Baer (SEC Consult Vulnerability Lab) for reporting this issue. **Affected Versions**: * 2.2.0 * 2.1.0 * 2.0.0 **Indicators of Compromise**: The filename of the cmd file needed to be guessed therefore the proof-of-concept creates a lot of files in `C\Windows\Temp` with the filename `cmk_all_\d+_1.cmd`. These file-creation events could be monitored. **Vulnerability Management**: We have rated the issue with a CVSS Score of 8.8 (High) with the following CVSS vector: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`. We assigned CVE-2024-0670 to this vulnerability. **Changes**: This Werk changes the temp folder and adds a subfolder with more restrictive permissions in which the files are created. Also errors are handled better. Change-Id: I9b6b6dbe68d638c9e0dcf127646783d15f1df589 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

[Checkmk/checkmk] 5973d6: check_http: Reformat output

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Branch: refs/heads/2.3.0 Home: https://github.com/Checkmk/checkmk Commit: 5973d674a775d5b4fb89907452f3920afe5bc8d4 https://github.com/Checkmk/checkmk/commit/5973d674a775d5b4fb89907452f3920af… Author: Andreas Umbreit <andreas.umbreit(a)checkmk.com> Date: 2024-02-27 (Tue, 27 Feb 2024) Changed paths: M packages/check-http/src/checks.rs M packages/check-http/src/output.rs M packages/check-http/src/runner.rs M packages/check-http/tests/test_http.rs Log Message: ----------- check_http: Reformat output - Separate Method and version output - Output of initial and final (if redirected) URLs - Remove redundant leading "HTTP <State>" Output CMK-16160 Change-Id: I9fa995bfd79fe1b58374553fa9719e77139a6cc2 To unsubscribe from these emails, change your notification settings at https://github.com/Checkmk/checkmk/settings/notifications

6 months, 3 weeks

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Checkmk git commits February 2024