Bug 818082 - ssh-copy-id from root to guest_u account causes denial
Summary: ssh-copy-id from root to guest_u account causes denial
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy
Version: 6.3
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Miroslav Vadkerti
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-05-02 07:38 UTC by Miroslav Vadkerti
Modified: 2012-06-20 12:34 UTC (History)
4 users (show)

Fixed In Version: selinux-policy-3.7.19-149.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-06-20 12:34:05 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2012:0780 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2012-06-19 20:34:59 UTC

Description Miroslav Vadkerti 2012-05-02 07:38:24 UTC
Description of problem:
type=SYSCALL msg=audit(1335943641.153:147): arch=c000003e syscall=42 success=no exit=-13 a0=4 a1=7f47acfd11a0 a2=6e a3=1 items=0 ppid=13487 pid=13491 auid=507 uid=507 gid=507 euid=507 
                 suid=507 fsuid=507 egid=507 sgid=507 fsgid=507 tty=(none) ses=2471 comm="sshd" exe="/usr/sbin/sshd" subj=guest_u:guest_r:guest_t:s0 key=(null)
type=AVC msg=audit(1335943641.153:147): avc:  denied  { write } for  pid=13491 comm="sshd" name="log" dev=devtmpfs ino=79941 scontext=guest_u:guest_r:guest_t:s0 
                 tcontext=unconfined_u:object_r:devlog_t:s0 tclass=sock_file

Version-Release number of selected component (if applicable):
selinux-policy-3.7.19-147.el6

How reproducible:
100%

Steps to Reproduce:
1. useradd -Z guest_u testuser
2. passwd testuser
3. ssh-copy-id testuser@localhost
  
Actual results:
Permission denied (ssh-copy-id)/No error msg with ssh. AVC in description.

Expected results:
No denial.

Additional info:
I think something may be missing from the log?

Comment 1 Miroslav Grepl 2012-05-02 08:32:15 UTC
Just try to switch to permissive mode for all AVC msgs. We don't allow guest_t to send log messages.

Comment 2 Miroslav Vadkerti 2012-05-02 09:07:47 UTC
I think it is the only one, though I can recheck

Comment 9 Miroslav Grepl 2012-05-08 18:02:16 UTC
Fixed in selinux-policy-3.7.19-149.el6

Comment 12 errata-xmlrpc 2012-06-20 12:34:05 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-2012-0780.html


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