Bug 617573
| Summary: | SELinux is preventing /usr/sbin/getsebool "read" access on booleans. | |||
|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Adam Goode <adam> | |
| Component: | cobbler | Assignee: | Scott J Henson <shenson> | |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | medium | |||
| Version: | 13 | CC: | awood, dgoodwin, dwalsh, jeckersb, jlaska, jpazdziora, mgrepl, Per.t.Sjoholm, renich, shenson, vanmeeuwen+fedora | |
| Target Milestone: | --- | |||
| Target Release: | --- | |||
| Hardware: | x86_64 | |||
| OS: | Linux | |||
| Whiteboard: | setroubleshoot_trace_hash:1e344471508429db447d0bc7f5327115e60d0b0c9327e5a319f1caef22102a28 | |||
| Fixed In Version: | Doc Type: | Bug Fix | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 706857 (view as bug list) | Environment: | ||
| Last Closed: | 2011-06-29 13:06:14 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: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 706857 | |||
|
Description
Adam Goode
2010-07-23 13:12:29 UTC
cobbler should not be hard coding SELinux checks into itself. Others might write different policy decisions and cobbler can run fine with different labelling.
We need to fix the labeling in the selinux policy package but do not check with the tool.
If you want to check the state of booleans, (Not a great idea) you can use the selinux python bindings.
import selinux
def check_selinux(self,status):
"""
Suggests various SELinux rules changes to run Cobbler happily with
SELinux in enforcing mode. FIXME: this method could use some
refactoring in the future.
"""
enabled = (selinux.is_selinux_enabeled() == 0)
if enabled:
if selinux.security_get_boolean_active("httpd_can_network_connect") != 1:
status.append(_("Must enable a selinux boolean to enable vital web services components, run: setsebool -P httpd_can_network_connect true"))
if selinux.security_get_boolean_active("rsync_disable_trans") != 1:
status.append(_("Must enable the cobbler import and replicate commands, run: setsebool -P rsync_disable_trans=1"))
As an example of why this is bad. rsync_disable_trans does not exist in F13 or RHEL6.
*** Bug 617574 has been marked as a duplicate of this bug. *** This bug is present in F14, can we get some progress on it. This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component. *** Bug 668536 has been marked as a duplicate of this bug. *** With permissive, on RHEL 6.1, many more denials are revealed:
type=AVC msg=audit(1306311352.911:513790): avc: denied { read } for pid=25462 comm="getsebool" name="booleans" dev=selinuxfs ino=21 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:security_t:s0 tclass=dir
type=AVC msg=audit(1306311352.999:513791): avc: denied { create } for pid=25464 comm="semanage" scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:system_r:cobblerd_t:s0 tclass=netlink_audit_socket
type=AVC msg=audit(1306311355.164:513792): avc: denied { read search } for pid=25464 comm="semanage" name="active" dev=dm-0 ino=1050988 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:object_r:semanage_store_t:s0 tclass=dir
type=AVC msg=audit(1306311355.164:513793): avc: denied { read } for pid=25464 comm="semanage" name="semanage.read.LOCK" dev=dm-0 ino=787482 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:semanage_read_lock_t:s0 tclass=file
type=AVC msg=audit(1306311355.165:513794): avc: denied { write } for pid=25464 comm="semanage" name="modules" dev=dm-0 ino=1050995 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:object_r:semanage_store_t:s0 tclass=dir
type=AVC msg=audit(1306311355.165:513795): avc: denied { read } for pid=25464 comm="semanage" name="policy.kern" dev=dm-0 ino=1051241 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:object_r:semanage_store_t:s0 tclass=file
type=AVC msg=audit(1306311355.165:513795): avc: denied { open } for pid=25464 comm="semanage" name="policy.kern" dev=dm-0 ino=1051241 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:object_r:semanage_store_t:s0 tclass=file
type=AVC msg=audit(1306311355.165:513796): avc: denied { getattr } for pid=25464 comm="semanage" path="/etc/selinux/targeted/modules/active/policy.kern" dev=dm-0 ino=1051241 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:object_r:semanage_store_t:s0 tclass=file
type=AVC msg=audit(1306311355.720:513797): avc: denied { search } for pid=25464 comm="semanage" name="contexts" dev=dm-0 ino=787460 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:default_context_t:s0 tclass=dir
type=AVC msg=audit(1306311355.720:513797): avc: denied { search } for pid=25464 comm="semanage" name="files" dev=dm-0 ino=787466 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:file_context_t:s0 tclass=dir
type=AVC msg=audit(1306311355.721:513798): avc: denied { open } for pid=25464 comm="semanage" name="semanage.read.LOCK" dev=dm-0 ino=787482 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:semanage_read_lock_t:s0 tclass=file
type=AVC msg=audit(1306311355.721:513799): avc: denied { lock } for pid=25464 comm="semanage" path="/etc/selinux/targeted/modules/semanage.read.LOCK" dev=dm-0 ino=787482 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:semanage_read_lock_t:s0 tclass=file
type=AVC msg=audit(1306311359.167:513800): avc: denied { read } for pid=25496 comm="cat" name="ip_tables_names" dev=proc ino=4026532188 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:proc_net_t:s0 tclass=file
type=AVC msg=audit(1306311359.167:513800): avc: denied { open } for pid=25496 comm="cat" name="ip_tables_names" dev=proc ino=4026532188 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:proc_net_t:s0 tclass=file
type=AVC msg=audit(1306311359.168:513801): avc: denied { getattr } for pid=25496 comm="cat" path="/proc/25496/net/ip_tables_names" dev=proc ino=4026532188 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:proc_net_t:s0 tclass=file
type=AVC msg=audit(1306311359.170:513802): avc: denied { search } for pid=25487 comm="iptables" name="lock" dev=dm-0 ino=1704685 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:var_lock_t:s0 tclass=dir
type=AVC msg=audit(1306311359.173:513803): avc: denied { create } for pid=25497 comm="iptables" scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:system_r:cobblerd_t:s0 tclass=rawip_socket
type=AVC msg=audit(1306311359.173:513803): avc: denied { net_raw } for pid=25497 comm="iptables" capability=13 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:system_r:cobblerd_t:s0 tclass=capability
type=AVC msg=audit(1306311359.174:513804): avc: denied { getopt } for pid=25497 comm="iptables" lport=255 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:system_r:cobblerd_t:s0 tclass=rawip_socket
type=AVC msg=audit(1306311359.174:513804): avc: denied { net_admin } for pid=25497 comm="iptables" capability=12 scontext=unconfined_u:system_r:cobblerd_t:s0 tcontext=unconfined_u:system_r:cobblerd_t:s0 tclass=capability
I guess we need some better way to do the cobbler check now that the daemon runs confined.
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