Bug 1464773
| Summary: | SELinux is preventing usermod from using the 'dac_read_search' capabilities. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Dale Turner <rxguy> |
| 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: | 27 | CC: | c.crispino8611, dominick.grift, dwalsh, lvrabec, mgrepl, plautrba, pmoore, ssekidde |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:87032af7af4c2ca69137318df2500cef32f114c4b84bd67e27cc3fda00a061bc;VARIANT_ID=workstation; | ||
| Fixed In Version: | selinux-policy-3.13.1-283.14.fc27 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-10-31 15:34:10 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: | |||
This bug appears to have been reported against 'rawhide' during the Fedora 27 development cycle. Changing version to '27'. selinux-policy-3.13.1-283.13.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2017-b5e9ce60d2 selinux-policy-3.13.1-283.14.fc27 has been pushed to the Fedora 27 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-2017-b5e9ce60d2 selinux-policy-3.13.1-283.14.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: SELinux is preventing usermod from using the 'dac_read_search' capabilities. ***** Plugin dac_override (91.4 confidence) suggests ********************** If you want to help identify if domain needs this access or you have a file with the wrong permissions on your system Then turn on full auditing to get path information about the offending file and generate the error again. Do Turn on full auditing # auditctl -w /etc/shadow -p w Try to recreate AVC. Then execute # ausearch -m avc -ts recent If you see PATH record check ownership/permissions on file, and fix it, otherwise report as a bugzilla. ***** Plugin catchall (9.59 confidence) suggests ************************** If you believe that usermod should have the dac_read_search capability by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'usermod' --raw | audit2allow -M my-usermod # semodule -X 300 -i my-usermod.pp Additional Information: Source Context unconfined_u:unconfined_r:useradd_t:s0-s0:c0.c1023 Target Context unconfined_u:unconfined_r:useradd_t:s0-s0:c0.c1023 Target Objects Unknown [ capability ] Source usermod Source Path usermod Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM <Unknown> Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.12.0-0.rc6.git3.2.fc27.x86_64 #1 SMP Thu Jun 22 23:40:46 UTC 2017 x86_64 x86_64 Alert Count 2 First Seen 2017-06-25 12:20:23 ADT Last Seen 2017-06-25 12:20:23 ADT Local ID 03c9bdbe-59df-4f56-8ac6-4c3b7dc5c03a Raw Audit Messages type=AVC msg=audit(1498404023.561:74690): avc: denied { dac_read_search } for pid=12327 comm="usermod" capability=2 scontext=unconfined_u:unconfined_r:useradd_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:useradd_t:s0-s0:c0.c1023 tclass=capability permissive=0 Hash: usermod,useradd_t,useradd_t,capability,dac_read_search Additional info: component: selinux-policy reporter: libreport-2.9.1 hashmarkername: setroubleshoot kernel: 4.12.0-0.rc6.git3.2.fc27.x86_64 type: libreport