On 03/13/18 06:13, ToddAndMargo wrote: >> >> /usr/bin/sealert -b >> Is quiet
If I put the AVC's you mention in the original post in a file....
type=AVC msg=audit(1520843479.104:515): avc: denied { create } for pid=7554
comm="lightdm" name=".xsession-errors"
scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023
tcontext=system_u:object_r:samba_share_t:s0 tclass=file permissive=1
type=AVC msg=audit(1520843479.104:516): avc: denied { write open } for
pid=7554
comm="lightdm" path="/home/tony/.xsession-errors" dev="dm-1" ino=54526689
scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023
tcontext=system_u:object_r:samba_share_t:s0 tclass=file permissive=1
And run sealert against them I get....
[egreshko@meimei ~]$ sealert -a err
100% done
found 2 alerts in err
--------------------------------------------------------------------------------
SELinux is preventing lightdm from create access on the file .xsession-errors.
***** Plugin catchall (100. confidence) suggests **************************
If you believe that lightdm should be allowed create access on the
.xsession-errors
file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'lightdm' --raw | audit2allow -M my-lightdm
# semodule -X 300 -i my-lightdm.pp
Additional Information:
Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context system_u:object_r:samba_share_t:s0
Target Objects .xsession-errors [ file ]
Source lightdm
Source Path lightdm
Port <Unknown>
Host <Unknown>
Source RPM Packages
Target RPM Packages
Policy RPM selinux-policy-3.13.1-283.26.fc27.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name meimei.greshko.com
Platform Linux meimei.greshko.com 4.15.7-300.fc27.x86_64 #1
SMP Wed Feb 28 17:53:39 UTC 2018 x86_64 x86_64
Alert Count 1
First Seen 2018-03-12 16:31:19 CST
Last Seen 2018-03-12 16:31:19 CST
Local ID 4b15d210-1cff-461f-8c2a-8469d09752d2
Raw Audit Messages
type=AVC msg=audit(1520843479.104:515): avc: denied { create } for pid=7554
comm="lightdm" name=".xsession-errors"
scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023
tcontext=system_u:object_r:samba_share_t:s0 tclass=file permissive=1
Hash: lightdm,xdm_t,samba_share_t,file,create
--------------------------------------------------------------------------------
SELinux is preventing lightdm from 'write, open' accesses on the file
/home/tony/.xsession-errors.
***** Plugin restorecon (99.5 confidence) suggests ************************
If you want to fix the label.
/home/tony/.xsession-errors default label should be xdm_home_t.
Then you can run restorecon. The access attempt may have been stopped due to
insufficient permissions to access a parent directory in which case try to
change the
following command accordingly.
Do
# /sbin/restorecon -v /home/tony/.xsession-errors
***** Plugin catchall (1.49 confidence) suggests **************************
If you believe that lightdm should be allowed write open access on the
.xsession-errors file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'lightdm' --raw | audit2allow -M my-lightdm
# semodule -X 300 -i my-lightdm.pp
Additional Information:
Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023
Target Context system_u:object_r:samba_share_t:s0
Target Objects /home/tony/.xsession-errors [ file ]
Source lightdm
Source Path lightdm
Port <Unknown>
Host <Unknown>
Source RPM Packages
Target RPM Packages
Policy RPM selinux-policy-3.13.1-283.26.fc27.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name meimei.greshko.com
Platform Linux meimei.greshko.com 4.15.7-300.fc27.x86_64 #1
SMP Wed Feb 28 17:53:39 UTC 2018 x86_64 x86_64
Alert Count 1
First Seen 2018-03-12 16:31:19 CST
Last Seen 2018-03-12 16:31:19 CST
Local ID 82cda10c-f801-4a67-b762-54b27ad752cb
Raw Audit Messages
type=AVC msg=audit(1520843479.104:516): avc: denied { write open } for
pid=7554
comm="lightdm" path="/home/tony/.xsession-errors" dev="dm-1" ino=54526689
scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023
tcontext=system_u:object_r:samba_share_t:s0 tclass=file permissive=1
Hash: lightdm,xdm_t,samba_share_t,file,write,open
--
Conjecture is just a conclusion based on incomplete information. It isn't a
fact.
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