Bug 1270330
| Summary: | selinux appears to block sshd ForwardX11/xauth | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Pat Riehecky <riehecky> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED NEXTRELEASE | QA Contact: | Milos Malik <mmalik> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.1 | CC: | csieh, lvrabec, mgrepl, misterbonnie, mmalik, plautrba, pvrabec, ssekidde |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-10-12 07:58:58 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
It is going to be addressed in RHEL-7.2. Closing as NEXTRELEASE. |
Description of problem: AVC denial messages appear when setting up xauth cookies. Version-Release number of selected component (if applicable):selinux-policy-3.13.1-23.el7_1.18.noarch How reproducible:100% Steps to Reproduce: 1.set selinux to enforcing 2.enable ForwardX11 for sshd 3.ssh into system with -X 4.review audit log Actual results: selinux error Expected results: perhaps a boolean to enable this behavior? Additional info: SELinux is preventing /usr/sbin/sshd from 'write' accesses on the key Unknown. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that sshd should be allowed write access on the Unknown key 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: # grep sshd /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:sshd_t:s0-s0:c0.c1023 Target Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Objects Unknown [ key ] Source sshd Source Path /usr/sbin/sshd Port <Unknown> Host (removed) Source RPM Packages openssh-server-6.6.1p1-12.el7_1.x86_64 Target RPM Packages Policy RPM selinux-policy-3.13.1-23.el7_1.18.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Host Name (removed) Platform Linux (removed) 3.10.0-229.14.1.el7.x86_64 #1 SMP Tue Sep 15 05:09:55 CDT 2015 x86_64 x86_64 Alert Count 1 First Seen 2015-10-09 11:09:09 CDT Last Seen 2015-10-09 11:09:09 CDT Local ID deb04197-f3f9-43c3-8acd-3fd9251ca7f1 Raw Audit Messages type=AVC msg=audit(1444406949.833:8562): avc: denied { write } for pid=6002 comm="sshd" scontext=system_u:system_r:sshd_t:s0-s0:c0.c1023 tcontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tclass=key type=SYSCALL msg=audit(1444406949.833:8562): arch=x86_64 syscall=add_key success=yes exit=1004727405 a0=7fbf5a6ad4ec a1=7fbf5d5615b0 a2=0 a3=0 items=0 ppid=1 pid=6002 auid=4294967295 uid=0 gid=0 euid=1000 suid=0 fsuid=1000 egid=1000 sgid=0 fsgid=1000 tty=(none) ses=4294967295 comm=sshd exe=/usr/sbin/sshd subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 key=(null) Hash: sshd,sshd_t,xdm_t,key,write