On 1/5/22 21:16, Ed Greshko wrote:
On 06/01/2022 09:25, Robert Moskowitz wrote:
On 1/5/22 17:17, Ed Greshko wrote:
On 05/01/2022 21:02, Robert Moskowitz wrote:
I keep getting these errors.
I got them back with F32 and Xfce, and now with F35 and Xfce.
I asked on the SElinux list, but no one seems to be home.
Here is the full detail; it looks like it may be logwatch causing
the problem. What do I do to fix this?
===============
SELinux is preventing mktemp from using the dac_read_search
capability.
***** Plugin dac_override (91.4 confidence) suggests
**********************
If you want to help identify if domain needs this access or you
have a file with the wrong permissions on your system
Then turn on full auditing to get path information about the
offending file and generate the error again.
Do
Turn on full auditing
# auditctl -w /etc/shadow -p w
Try to recreate AVC. Then execute
# ausearch -m avc -ts recent
If you see PATH record check ownership/permissions on file, and fix
it,
otherwise report as a bugzilla.
***** Plugin catchall (9.59 confidence) suggests
**************************
If you believe that mktemp should have the dac_read_search
capability 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 'mktemp' --raw | audit2allow -M my-mktemp
# semodule -X 300 -i my-mktemp.pp
Additional Information:
Source Context system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023
Target Context system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023
Target Objects Unknown [ capability ]
Source mktemp
Source Path mktemp
Port <Unknown>
Host lx140e.htt-consult.com
Source RPM Packages
Target RPM Packages
SELinux Policy RPM selinux-policy-targeted-35.7-1.fc35.noarch
Local Policy RPM selinux-policy-targeted-35.7-1.fc35.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name lx140e.htt-consult.com
Platform Linux lx140e.htt-consult.com
5.15.11-200.fc35.x86_64 #1 SMP Wed
Dec 22 15:41:11
UTC 2021 x86_64 x86_64
Alert Count 13912
First Seen 2021-11-15 03:27:05 EST
Last Seen 2022-01-02 03:09:16 EST
Local ID 2ef8a1a9-ddf5-42cc-b5dc-c08354265cc8
Raw Audit Messages
type=AVC msg=audit(1641110956.728:1612): avc: denied {
dac_read_search } for pid=24078 comm="dotlockfile" capability=2
scontext=system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023
tcontext=system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023
tclass=capability permissive=0
Hash:
mktemp,logwatch_mail_t,logwatch_mail_t,capability,dac_read_search
Before doing as suggested in the sealert output.....
What is the output of "ls -Z /usr/bin/dotlockfile" and "ls -X
/usr/bin/mktemp"?
# ls -Z /usr/bin/dotlockfile
system_u:object_r:bin_t:s0 /usr/bin/dotlockfile
# ls -X /usr/bin/mktemp
/usr/bin/mktemp
Ooops I made a typo.
What is "ls -Z /usr/bin/mktemp" and also "ls -Z /usr/sbin/logwatch".
# ls -Z /usr/bin/mktemp
system_u:object_r:bin_t:s0 /usr/bin/mktemp
# ls -Z /usr/sbin/logwatch
system_u:object_r:bin_t:s0 /usr/sbin/logwatch
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