Bug 978864

Summary:	net-snmp agentXperms chown denied by selinux
Product:	Red Hat Enterprise Linux 5	Reporter:	Trevor Hemsley <trevor.hemsley>
Component:	selinux-policy	Assignee:	Miroslav Grepl <mgrepl>
Status:	CLOSED ERRATA	QA Contact:	Milos Malik <mmalik>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	5.9	CC:	dwalsh, mmalik
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	selinux-policy-2.4.6-346.el5	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-09-30 22:25:59 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:

Description Trevor Hemsley 2013-06-27 08:55:35 UTC

Description of problem:
The agentXperms snmpd.conf directive attempts to chmod the agentx socket and fails due to an avc. Issue identical to https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=556688 but for el5 (and possibly el6?)

Version-Release number of selected component (if applicable):


How reproducible:
always

Steps to Reproduce:
1. Install net-snmp
2. Include the following in /etc/snmp/snmpd.conf
master agentx
agentXSocket /var/agentx/master
agentXPerms 0660 0555 root asterisk
3. Run `service snmpd restart`


Actual results:
ls -la /var/agentx shows ownership is still root:root and an avc is generated

type=AVC msg=audit(1372321467.050:14571): avc:  denied  { chown } for  pid=2747 comm="snmpd" capability=0 scontext=user_u:system_r:snmpd_t:s0 tcontext=user_u:system_r:snmpd_t:s0 tclass=capability


Expected results:
Ownership of /var/agentx/master should be as specified in snmpd.conf

Additional info:
Bug already reported and fixed for Fedora 12 it seems.

Comment 2 RHEL Program Management 2013-07-02 08:58:28 UTC

This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux release.  Product Management has
requested further review of this request by Red Hat Engineering, for
potential inclusion in a Red Hat Enterprise Linux release for currently
deployed products.  This request is not yet committed for inclusion in
a release.

Comment 3 Daniel Walsh 2013-07-02 11:03:46 UTC

We have this rule in fedora.

Comment 4 Miroslav Grepl 2013-07-03 12:45:16 UTC

Trevor,
you can allow it using

# grep snmpd_t /var/log/audit/audit.log |audit2allow -M mypol
# semodule -i mypol.pp

Comment 5 Trevor Hemsley 2013-07-03 12:57:01 UTC

Thanks Miroslav, I've already added a local policy to allow this but given that it was reported and fixed in f12, I figured this should be in the RHEL supplied policy too, hence the bugzilla.

Comment 9 errata-xmlrpc 2013-09-30 22:25:59 UTC

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-2013-1312.html