Excellent.   I appreciate the guidance. 

 

I’ve submitted this issue:

https://github.com/ComplianceAsCode/content/issues/4925

 

Thanks.

 

 

From: Gabriel Gaspar Becker <ggasparb@redhat.com>
Sent: Monday, October 14, 2019 5:25 AM
To: SCAP Security Guide <scap-security-guide@lists.fedorahosted.org>
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 <nwallwo@sandia.gov> 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

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