Hi,

What OS are running on your system?

What is the output of `cat /etc/nsswitch.conf | grep passwd` on your system?

Do you use SSSD on purpose?


On Tue, Mar 15, 2022 at 7:45 PM Brian J. Murrell <[email protected]>
wrote:

> I am getting some SELinux AVC alerts for a given process in a given domain
> that seems to want to be able to read files in /var/lib/sss/.
>
> strace(1)ing the (unprivileged) process it seem to want to do the
> following:
>
> 4024612 openat(AT_FDCWD, "/var/lib/sss/mc/passwd", O_RDONLY|O_CLOEXEC) =
> -1 EACCES (Permission denied)
>
> and
>
> 4024612 connect(3, {sa_family=AF_UNIX, sun_path="/var/lib/sss/pipes/nss"},
> 110) = -1 EACCES (Permission denied)
>
> in /var/lib/sss/ which as you can see SELinux is currently denying.  But
> nothing about the running of the process seems to be a-miss despite these
> EPERMs
>
> Ultimately I am just trying to gauge the potential issues with following
> the least-privilege principle and setting these to ignore rather than
> allow.  I.e. what might not be functioning correctly (even though they
> appear to be from all outward appearances) if these EPERMs continue instead
> of being allowed.
>
> Any ideas why this process would be wanting to access those paths and why
> and what the problem might be with denying it?
>
> Cheers,
> b.
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