Bug 358761

Summary: SELinux is preventing /usr/sbin/sshd (sshd_t) "read" to <Unknown> (var_lib_t).
Product: [Fedora] Fedora Reporter: Duncan Innes <duncan>
Component: selinux-policyAssignee: Josef Kubin <jkubin>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 8   
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Current Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-03-05 22:17:13 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:

Description Duncan Innes 2007-10-30 18:29:19 UTC 
Description of problem:
I've installed freenx on a machine which is using ssh for connections.  Whenever
I try and make a connection to this machine via a NoMachine client, this error
comes up on the setroubleshoot browser.  All the relevant keys are in place
between the two machines.

I get the same error when trying to ssh onto the same machine using ssh keys
rather than logging in with a password.

I can ssh onto the machine using password authentication, but as soon as a key
is used for authentication, SELinux denies access.


Version-Release number of selected component (if applicable): 3.0.8-36.fc8


How reproducible: Every time


Steps to Reproduce:
1. ssh to the machine using key access
  
Actual results: SELinux denial


Expected results: Connection to establish using ssh keys


Additional info:
Comment 1 Duncan Innes 2007-10-30 19:01:36 UTC 
I changed the booleans for SSH under SELinux Administration

* Allow ssh logins as sysadm_r:sysadm_t
* Allow ssh to run ssh-keysign

and now get an extra error:

SELinux is preventing /usr/sbin/sshd (sshd_t) "getattr" to
/var/lib/nxserver/home/.ssh/authorized_keys (var_lib_t).

This is when making an NXClient connection to the machine or ssh'ing to the
machine as the nx user (I think - I've only managed to replicate this part twice
now).
Comment 2 Duncan Innes 2007-10-30 19:02:41 UTC 
When I say I changed the booleans in SELinux Administration - they didn't have a
tick in the box and I selected them so they both have ticks in the box.
Comment 3 Daniel Walsh 2007-10-30 20:35:01 UTC 
The easiest solution is just to modify the policy

grep ssh /var/log/audit/audit.log | audit2allow -M myssh
semodule -i myssh.pp

Should fix

A bettter long term solution would be to get a policy for freenix.
Comment 4 Josef Kubin 2008-01-16 13:40:30 UTC 
in updated fixed as of selinux-policy-3.0.8-77
feel free to use my packages, until they will be publicly available
http://people.redhat.com/jkubin/selinux/F8/
Comment 5 Daniel Walsh 2008-03-05 22:17:13 UTC 
Bugs have been in modified for over one month.  Closing as fixed in current
release please reopen if the problem still persists.