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44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
# apparmor.d - Full set of apparmor profiles
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# Copyright (C) 2019-2021 Mikhail Morfikov
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# SPDX-License-Identifier: GPL-2.0-only
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abi <abi/3.0>,
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include <tunables/global>
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@{exec_path} = /{usr/,}bin/passwd
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profile passwd @{exec_path} {
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include <abstractions/base>
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include <abstractions/wutmp>
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include <abstractions/authentication>
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include <abstractions/nameservice-strict>
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# To write records to the kernel auditing log.
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capability audit_write,
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# To set the right permission to the files in the /etc/.
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# Since passwd reads and writes from /etc/ directory, the write permissions are requried by it.
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# Note that, /etc/shadow is never written by passwd. passwd actually writes to /etc/nshadow and
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# renames /etc/nshadow to /etc/shadow.
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capability chown,
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capability fsetid,
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# passwd is a SETUID binary, but it looks like it doesn't want this CAP.
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#capability setuid,
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network netlink raw,
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@{exec_path} mr,
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owner @{PROC}/@{pid}/loginuid r,
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/etc/shadow rw,
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/etc/nshadow rw,
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# A process first uses lckpwdf() to lock the lock file, thereby gaining exclusive rights to
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# modify the /etc/passwd or /etc/shadow password database.
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/etc/.pwd.lock rwk,
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include if exists <local/passwd>
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}
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