119 lines
4.5 KiB
Groff
119 lines
4.5 KiB
Groff
.\" Copyright (c) 2004 Apple Inc.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of Apple Inc. ("Apple") nor the names of
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.\" its contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
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.\" ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd January 4, 2008
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.Dt AUDIT_USER 5
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.Os
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.Sh NAME
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.Nm audit_user
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.Nd "events to be audited for given users"
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.Sh DESCRIPTION
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The
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.Nm
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file specifies which audit event classes are to be audited for the given users.
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If specified, these flags are combined with the system-wide audit flags in the
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.Xr audit_control 5
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file to determine which classes of events to audit for that user.
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These settings take effect when the user logs in.
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.Pp
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Each line maps a user name to a list of classes that should be audited and a
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list of classes that should not be audited.
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Entries are of the form:
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.Pp
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.D1 Ar username Ns : Ns Ar alwaysaudit Ns : Ns Ar neveraudit
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.Pp
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In the format above,
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.Ar alwaysaudit
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is a set of event classes that are always audited, and
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.Ar neveraudit
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is a set of event classes that should not be audited.
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These sets can indicate
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the inclusion or exclusion of multiple classes, and whether to audit successful
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or failed events.
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See
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.Xr audit_control 5
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for more information about audit flags.
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.Pp
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Example entries in this file are:
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.Bd -literal -offset indent
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root:lo,ad:no
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jdoe:-fc,ad:+fw
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.Ed
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.Pp
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These settings would cause login/logout and administrative events that
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are performed on behalf of user
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.Dq Li root
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to be audited.
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No failure events are audited.
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For the user
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.Dq Li jdoe ,
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failed file creation events are audited, administrative events are
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audited, and successful file write events are never audited.
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.Sh IMPLEMENTATION NOTES
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Per-user and global audit preselection configuration are evaluated at time of
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login, so users must log out and back in again for audit changes relating to
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preselection to take effect.
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.Pp
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Audit record preselection occurs with respect to the audit identifier
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associated with a process, rather than with respect to the UNIX user or group
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ID.
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The audit identifier is set as part of the user credential context as part of
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login, and typically does not change as a result of running setuid or setgid
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applications, such as
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.Xr su 1 .
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This has the advantage that events that occur after running
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.Xr su 1
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can be audited to the original authenticated user, as required by CAPP, but
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may be surprising if not expected.
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.Sh FILES
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.Bl -tag -width ".Pa /etc/security/audit_user" -compact
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.It Pa /etc/security/audit_user
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.El
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.Sh SEE ALSO
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.Xr login 1 ,
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.Xr su 1 ,
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.Xr audit 4 ,
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.Xr audit_class 5 ,
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.Xr audit_control 5 ,
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.Xr audit_event 5
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.Sh HISTORY
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The OpenBSM implementation was created by McAfee Research, the security
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division of McAfee Inc., under contract to Apple Computer Inc.\& in 2004.
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It was subsequently adopted by the TrustedBSD Project as the foundation for
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the OpenBSM distribution.
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.Sh AUTHORS
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.An -nosplit
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This software was created by McAfee Research, the security research division
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of McAfee, Inc., under contract to Apple Computer Inc.
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Additional authors include
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.An Wayne Salamon ,
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.An Robert Watson ,
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and SPARTA Inc.
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.Pp
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The Basic Security Module (BSM) interface to audit records and audit event
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stream format were defined by Sun Microsystems.
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