----- Original Message -----
From: "Jan Lieskovsky" <jlieskov(a)redhat.com>
To: "Lesley Kimmel" <ljkimmel99(a)hotmail.com>
Cc: "SCAP Security Guide" <scap-security-guide(a)lists.fedorahosted.org>
Sent: Thursday, June 11, 2015 10:41:19 AM
Subject: Re: RHEL7 Scap-workbench issue
Hello Lesley,
thank you for your report.
----- Original Message -----
> From: "Lesley Kimmel" <ljkimmel99(a)hotmail.com>
> To: scap-security-guide(a)lists.fedorahosted.org
> Sent: Wednesday, June 10, 2015 2:33:32 PM
> Subject: RHEL7 Scap-workbench issue
>
> I'm sorry if this is the wrong venue for this question, but I thought it
> was
> worth a shot. I was recently using scap-workbench on RHEL7 to secure the
> system. After applying fix for CCE-27291-4 (add 'session required
> pam_lastlog.so showfailed') to /etc/pam.d/system-auth, scap-workbench
> immediately begins throwing an error when attempting to scan the system:
> "ERROR: pkexec.c:142:pam_conversation_function code should not be
reached"
I can reproduce the issue you are experiencing. That error / warning message
is a result of invalid PAM /etc/pam.d/system-auth configuration. Have checked
the recommendation with PAM developers and the conclusion being that on
RHEL-7
and Fedora systems the setting shouldn't be applied into
/etc/pam.d/system-auth
file, but rather against / into /etc/pam.d/postlogin PAM file.
I will submit a PR changing the OVAL check && XCCDF recommendation for RHEL-7
and Fedora products (so future SSG versions aren't prone to this bug).
JFYI, the corresponding PR which should fix this issue is here:
[1]
https://github.com/OpenSCAP/scap-security-guide/pull/577
Review appreciated.
Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Technologies Team
Thank you again for your report!
Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Technologies Team
>
> Any thoughts? I assume the issue is generally with PAM and extends beyond
> scap-workbench. However, since that is the only evidence I've seen of an
> issue I thought I'd start with the SCAP group.
>
> Thanks,
>
> -Les Kimmel
>
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