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From: Dag-Erling Smorgrav <des@FreeBSD.org>
Date: Fri, 13 Nov 2009 11:19:26 +0000 (UTC)
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Subject: svn commit: r199248 - head/lib/libpam/modules/pam_unix
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Author: des
Date: Fri Nov 13 11:19:26 2009
New Revision: 199248
URL: http://svn.freebsd.org/changeset/base/199248

Log:
  Note that nullok should not be used by processes that can't access the
  password database.
  
  PR:		bin/126650, misc/140514
  MFC after:	1 week

Modified:
  head/lib/libpam/modules/pam_unix/pam_unix.8

Modified: head/lib/libpam/modules/pam_unix/pam_unix.8
==============================================================================
--- head/lib/libpam/modules/pam_unix/pam_unix.8	Fri Nov 13 09:57:50 2009	(r199247)
+++ head/lib/libpam/modules/pam_unix/pam_unix.8	Fri Nov 13 11:19:26 2009	(r199248)
@@ -105,6 +105,17 @@ sufficient.
 If the password database has no password for the entity being
 authenticated, then this option will forgo password prompting, and
 silently allow authentication to succeed.
+.Pp
+.Sy NOTE:
+If
+.Nm
+is invoked by a process that does not have the privileges required to
+access the password database (in most cases, this means root
+privileges), the
+.Cm nullok
+option may cause
+.Nm
+to allow any user to log in with any password.
 .It Cm local_pass
 Use only the local password database, even if NIS is in use.
 This will cause an authentication failure if the system is configured