Bug 740180
| Summary: | SELinux is preventing pwupdate from getattr operation on /bin/mailx | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Milos Malik <mmalik> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Milos Malik <mmalik> |
| Severity: | low | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.2 | CC: | dwalsh, hhorak, ovasik |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-3.7.19-113.el6 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-12-06 10:19:20 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: | |||
Does yppasswdd send a mail? Not yppasswdd itself, but pwupdate script does (both in ypserv package, not yp-tools). And pwupdate is called by yppasswdd (fork+exec, don't know what is happening with context). What is pwupdate: # This script is invoked by rpc.yppasswdd after changing the password in # /etc/shadow or /etc/passwd and it should update the passwd.* and shadow.* # maps for all domains served by this host. A mail is sent if some error occurs while updating (which is a rare case). Ok, thanks Honzo. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2011-1511.html |
Description of problem: Seen today on 1 machine. I was not able to reproduce it again. Unfortunately the audit demon was not running at that time. Here is what dmesg output revealed. Version-Release number of selected component (if applicable): selinux-policy-mls-3.7.19-93.el6_1.7.noarch selinux-policy-targeted-3.7.19-93.el6_1.7.noarch selinux-policy-doc-3.7.19-93.el6_1.7.noarch selinux-policy-minimum-3.7.19-93.el6_1.7.noarch selinux-policy-3.7.19-93.el6_1.7.noarch Actual results: type=1400 audit(1316513253.185:23826): avc: denied { getattr } for pid=5289 comm="pwupdate" path="/bin/mailx" dev=sda2 ino=819297 scontext=unconfined_u:system_r:yppasswdd_t:s0 tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=file type=1400 audit(1316513253.312:23827): avc: denied { getattr } for pid=5289 comm="pwupdate" path="/bin/mailx" dev=sda2 ino=819297 scontext=unconfined_u:system_r:yppasswdd_t:s0 tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=file type=1400 audit(1316514226.592:23828): avc: denied { getattr } for pid=9906 comm="pwupdate" path="/bin/mailx" dev=sda2 ino=819297 scontext=unconfined_u:system_r:yppasswdd_t:s0 tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=file type=1400 audit(1316514226.716:23829): avc: denied { getattr } for pid=9906 comm="pwupdate" path="/bin/mailx" dev=sda2 ino=819297 scontext=unconfined_u:system_r:yppasswdd_t:s0 tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=file type=1400 audit(1316514468.247:23830): avc: denied { getattr } for pid=11360 comm="pwupdate" path="/bin/mailx" dev=sda2 ino=819297 scontext=unconfined_u:system_r:yppasswdd_t:s0 tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=file type=1400 audit(1316514468.371:23831): avc: denied { getattr } for pid=11360 comm="pwupdate" path="/bin/mailx" dev=sda2 ino=819297 scontext=unconfined_u:system_r:yppasswdd_t:s0 tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=file Expected results: * no AVCs