Description of problem: This report is due to a recurring (3) issue with SELinux. I have turned on full auditing - root@hg020 rhamelin]# auditctl -w /etc/shadow -p w and following the next occurance ran - root@hg020 rhamelin]# ausearch -m avc -ts recent <no matches> Next I checked to see if auditing was still active - root@hg020 rhamelin]# auditctl -w /etc/shadow -p w Error sending add rule data request (Rule exists) It is. SELinux is preventing certwatch from using the 'dac_override' 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 certwatch should have the dac_override 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 'certwatch' --raw | audit2allow -M my-certwatch # semodule -X 300 -i my-certwatch.pp Additional Information: Source Context system_u:system_r:certwatch_t:s0-s0:c0.c1023 Target Context system_u:system_r:certwatch_t:s0-s0:c0.c1023 Target Objects Unknown [ capability ] Source certwatch Source Path certwatch Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.14.1-24.fc28.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 4.16.5-300.fc28.x86_64 #1 SMP Fri Apr 27 17:38:36 UTC 2018 x86_64 x86_64 Alert Count 21 First Seen 2018-05-02 15:44:01 PDT Last Seen 2018-05-08 03:10:01 PDT Local ID dfc01066-bcbe-4823-b134-ccb1802c554e Raw Audit Messages type=AVC msg=audit(1525774201.469:2482): avc: denied { dac_override } for pid=27208 comm="certwatch" capability=1 scontext=system_u:system_r:certwatch_t:s0-s0:c0.c1023 tcontext=system_u:system_r:certwatch_t:s0-s0:c0.c1023 tclass=capability permissive=0 Hash: certwatch,certwatch_t,certwatch_t,capability,dac_override Version-Release number of selected component: selinux-policy-3.14.1-24.fc28.noarch Additional info: component: selinux-policy reporter: libreport-2.9.5 hashmarkername: setroubleshoot kernel: 4.16.5-300.fc28.x86_64 type: libreport Potential duplicate: bug 1485457
*** Bug 1485457 has been marked as a duplicate of this bug. ***
Description of problem: This SELinux alert appears every so often. Similar alerts appear for other source processes trying to access 'dac_override'. I'm not sure what triggers these alerts. They don't appear to cause any problems, though. Version-Release number of selected component: selinux-policy-3.14.1-32.fc28.noarch Additional info: reporter: libreport-2.9.5 hashmarkername: setroubleshoot kernel: 4.17.2-200.fc28.x86_64 type: libreport
Hi, This looks more like packaging issue than SELinux policy issue. Moving to proper component. For more info see: https://lukas-vrabec.com/index.php/2018/07/03/why-do-you-see-dac_override-selinux-denials/
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