debian-cis/tests/hardening/99.5.4_ssh_keys_from.sh
2020-11-27 09:22:47 +01:00

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# shellcheck shell=bash
# run-shellcheck
test_audit() {
# shellcheck disable=2154
echo 'EXCEPTION_USER="root"' >> /opt/debian-cis/etc/conf.d/"${script}".cfg
skip_tests
# shellcheck disable=2154
run genconf /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
useradd -s /bin/bash jeantestuser
describe Running on blank host
register_test retvalshouldbe 0
dismiss_count_for_test
register_test contain "[WARN] secaudit has a valid shell but no authorized_keys file"
register_test contain "[INFO] User jeantestuser has a valid shell"
register_test contain "[INFO] User jeantestuser has no home directory"
# shellcheck disable=2154
run blank /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
mkdir -p /home/secaudit/.ssh
touch /home/secaudit/.ssh/authorized_keys2
describe empty authorized keys file
register_test retvalshouldbe 0
run emptyauthkey /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
ssh-keygen -N "" -t ed25519 -f /tmp/key1
cat /tmp/key1.pub >> /home/secaudit/.ssh/authorized_keys2
describe Key without from field
register_test retvalshouldbe 1
run keynofrom /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
{
echo -n 'from="127.0.0.1" ';
cat /tmp/key1.pub;
} > /home/secaudit/.ssh/authorized_keys2
describe Key with from, no ip check
register_test retvalshouldbe 0
run keyfrom /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
# shellcheck disable=2016
echo 'ALLOWED_IPS="$ALLOWED_IPS 127.0.0.1"' >> /opt/debian-cis/etc/conf.d/"${script}".cfg
{
echo -n 'from="10.0.1.2" ';
cat /tmp/key1.pub;
} >> /home/secaudit/.ssh/authorized_keys2
describe Key with from, filled allowed IPs, one bad ip
register_test retvalshouldbe 1
run badfromip /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
# shellcheck disable=2016
echo 'ALLOWED_IPS="$ALLOWED_IPS 10.0.1.2"' >> /opt/debian-cis/etc/conf.d/"${script}".cfg
describe Key with from, filled allowed IPs, all IPs allowed
register_test retvalshouldbe 0
run allwdfromip /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
# shellcheck disable=2016
echo 'ALLOWED_IPS="$ALLOWED_IPS 127.0.0.1,10.2.3.1"' >> /opt/debian-cis/etc/conf.d/"${script}".cfg
{
echo -n 'from="10.0.1.2",command="echo bla" ';
cat /tmp/key1.pub;
echo -n 'command="echo bla,from="10.0.1.2,10.2.3.1"" ';
cat /tmp/key1.pub;
} >> /home/secaudit/.ssh/authorized_keys2
describe Key with from and command options
register_test retvalshouldbe 0
run keyfromcommand /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
useradd -s /bin/bash -m jeantest2
# shellcheck disable=2016
echo 'USERS_TO_CHECK="jeantest2 secaudit"' >> /opt/debian-cis/etc/conf.d/"${script}".cfg
describe Check only specified user
register_test retvalshouldbe 0
run checkuser /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
# Cleanup
userdel jeantestuser
userdel -r jeantest2
rm -f /tmp/key1 /tmp/key1.pub
}