security-misc/debian/security-misc.postinst
Patrick Schleizer 6479c883bf
Console Lockdown.
Allow members of group 'console' to use tty1 to tty7. Everyone else except
members of group 'console-unrestricted' are restricted from using console
using ancient, unpopular login methods such as using /bin/login over networks,
which might be exploitable. (CVE-2001-0797)

Not enabled by default in this package since this package does not know which
users shall be added to group 'console'.

In new Whonix builds, user 'user" will be added to group 'console' and
pam console-lockdown enabled by package anon-base-files.

/usr/share/pam-configs/console-lockdown

/etc/security/access-security-misc.conf

https://forums.whonix.org/t/etc-security-hardening/8592
2019-12-07 05:40:20 -05:00

70 lines
1.8 KiB
Bash

#!/bin/bash
## Copyright (C) 2012 - 2019 ENCRYPTED SUPPORT LP <adrelanos@riseup.net>
## See the file COPYING for copying conditions.
if [ -f /usr/lib/helper-scripts/pre.bsh ]; then
source /usr/lib/helper-scripts/pre.bsh
fi
set -e
true "
#####################################################################
## INFO: BEGIN: $DPKG_MAINTSCRIPT_PACKAGE $DPKG_MAINTSCRIPT_NAME $@
#####################################################################
"
case "$1" in
configure)
glib-compile-schemas /usr/share/glib-2.0/schemas || true
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "$DPKG_MAINTSCRIPT_NAME called with unknown argument \`$1'" >&2
exit 1
;;
esac
addgroup root sudo
addgroup --system sysfs
addgroup --system cpuinfo
addgroup --system console
addgroup --system console-unrestricted
addgroup root console
pam-auth-update --package
/usr/lib/security-misc/permission-lockdown
## https://phabricator.whonix.org/T377
## Debian has no update-grub trigger yet:
## https://bugs.debian.org/481542
if command -v update-grub >/dev/null 2>&1; then
update-grub || \
echo "$DPKG_MAINTSCRIPT_PACKAGE $DPKG_MAINTSCRIPT_NAME ERROR: Running \
'update-grub' failed with exit code $?. $DPKG_MAINTSCRIPT_PACKAGE is most \
likely only the trigger, not the cause. Unless you know this is not an issue, \
you should fix running 'update-grub', otherwise your system might no longer \
boot." >&2
fi
true "INFO: debhelper beginning here."
#DEBHELPER#
true "INFO: Done with debhelper."
true "
#####################################################################
## INFO: END : $DPKG_MAINTSCRIPT_PACKAGE $DPKG_MAINTSCRIPT_NAME $@
#####################################################################
"
## Explicitly "exit 0", so eventually trapped errors can be ignored.
exit 0