Bug 1622266
| Summary: | SELinux is preventing tcsd from using the 'dac_override' capabilities. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Nicolas Sapa <redhat> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 28 | CC: | dwalsh, lvrabec, mgrepl, plautrba, pmoore |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:736a3652a8e57a418d98b53d9e45ae9d212c36cb673404d505cd8a9fe9ee222b; | ||
| Fixed In Version: | selinux-policy-3.14.1-42.fc28 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-09-11 16:55:54 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
selinux-policy-3.14.1-42.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-2d1b09d217 selinux-policy-3.14.1-42.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-2d1b09d217 selinux-policy-3.14.1-42.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: Tryed to start tcsd with $ sudo systemctl start tcsd.service SELinux is preventing tcsd from using the 'dac_override' capabilities. ***** Plugin dac_override (91.4 confidence) suggests ********************** Si vous souhaitez identifier si le domaine nécessite cet accès ou si vous possédez un fichier avec les mauvaises permissions sur votre système Then activez le contrôle complet pour obtenir les informations de chemin du fichier fautif et générer l'erreur à nouveau. Do Activer le contrôle complet # auditctl -w /etc/shadow -p w Tentez de recréer AVC. Puis exécutez # ausearch -m avc -ts recent Si vous voyez un enregistrement PATH, vérifiez les propriétés/permissions du fichier, et corrigez-les, sinon veuillez effectuer un rapport bugzilla. ***** Plugin catchall (9.59 confidence) suggests ************************** Si vous pensez que tcsd devrait avoir des capacités dac_override par défaut. Then vous devriez rapporter ceci en tant qu'anomalie. Vous pouvez générer un module de stratégie local pour autoriser cet accès. Do autoriser cet accès pour le moment en exécutant : # ausearch -c "tcsd" --raw | audit2allow -M my-tcsd # semodule -X 300 -i my-tcsd.pp Additional Information: Source Context system_u:system_r:tcsd_t:s0 Target Context system_u:system_r:tcsd_t:s0 Target Objects Unknown [ capability ] Source tcsd Source Path tcsd Port <Inconnu> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.14.1-40.fc28.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.17.17-200.fc28.x86_64 #1 SMP Mon Aug 20 15:56:07 UTC 2018 x86_64 x86_64 Alert Count 1 First Seen 2018-08-25 02:47:07 CEST Last Seen 2018-08-25 02:47:07 CEST Local ID ea752383-288f-43b8-be5f-f361f7d14895 Raw Audit Messages type=AVC msg=audit(1535158027.759:276): avc: denied { dac_override } for pid=5627 comm="tcsd" capability=1 scontext=system_u:system_r:tcsd_t:s0 tcontext=system_u:system_r:tcsd_t:s0 tclass=capability permissive=0 Hash: tcsd,tcsd_t,tcsd_t,capability,dac_override Version-Release number of selected component: selinux-policy-3.14.1-40.fc28.noarch Additional info: component: selinux-policy reporter: libreport-2.9.5 hashmarkername: setroubleshoot kernel: 4.17.17-200.fc28.x86_64 type: libreport