Excellent.   I appreciate the guidance.

I’ve submitted this issue:
https://github.com/ComplianceAsCode/content/issues/4925

Thanks.


From: Gabriel Gaspar Becker <[email protected]>
Sent: Monday, October 14, 2019 5:25 AM
To: SCAP Security Guide <[email protected]>
Subject: [EXTERNAL] Re: linux_os - pam_faillock.so - The authfail line is 
inserted too early in the PAM stack and this breaks alternative authentications 
(ex: krb5 or sssd)

Hi Nathaniel, If you truly believe that this is an issue then I suggest you to 
create a new issue under: [0] which is the project to track issues on 
scap-security-guide.

And if it's possible try to add more information on which version you are using 
and which rule you are checking.

I believe the rule you checking is part of [1], please try to identify which 
one is it.

There people can start collaborating on identifying exactly what's the issue 
and start working on it.

Regards.

[0] https://github.com/ComplianceAsCode/content/issues/new
[1] 
https://github.com/ComplianceAsCode/content/tree/master/linux_os/guide/system/accounts/accounts-pam

On Fri, Oct 11, 2019 at 10:53 PM Wallwork, Nathaniel 
<[email protected]<mailto:[email protected]>> wrote:
The PAM stack is modified, adding lines for pam_faillock.so.

The line with authfail line is inserted “after pam_unix.so”.   When there are 
alternative authentication methods (ex: pam_krb5.so or pam_sssd.so), this 
breaks them.

It would be better to add this line “before pam_deny.so” instead.   This would 
still have the desired effect, without breaking alternative authentication 
methods.

What’s the best path to get this change made?

Thanks.

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--

Gabriel Gaspar Becker

Software Engineer

Red Hat <https://www.redhat.com>
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