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ADD(4.4): add logrotate permissions checking

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This commit is contained in:
Thibault Ayanides 2020-12-24 10:31:47 +01:00
parent d0ab72dd26
commit e2ad0a5dcc
2 changed files with 47 additions and 3 deletions
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35
bin/hardening/4.4_logrotate_permissions.sh
View File

@ -17,14 +17,45 @@ HARDENING_LEVEL=3
# shellcheck disable=2034
DESCRIPTION="Configure logrotate to assign appropriate permissions."
FILE="/etc/logrotate.conf"
PATTERN="^\s*create\s+\S+"
PERMISSIONS=0640
# This function will be called if the script status is on enabled / audit mode
audit() {
:
does_pattern_exist_in_file "$FILE" "$PATTERN"
if [ "$FNRET" != 0 ]; then
crit "Logrotate permissions are not configured"
else
if grep -E "$PATTERN" "$FILE" | grep -E -v "\s(0)?[0-6][04]0\s"; then
crit "Logrotate permissions are not set to $PERMISSIONS"
else
ok "Logrotate permissions are well configured"
fi
fi
}
# This function will be called if the script status is on enabled mode
apply() {
:
does_pattern_exist_in_file "$FILE" "$PATTERN"
if [ "$FNRET" != 0 ]; then
warn "Logrotate permissions are not configured, fixing it"
add_end_of_file "$FILE" "create $PERMISSIONS root utmp"
else
RESULT=$(grep -E "$PATTERN" "$FILE" | grep -E -v "\s(0)?[0-6][04]0\s")
if [[ -n "$RESULT" ]]; then
warn "Logrotate permissions are not set to $PERMISSIONS, fixing it"
d_IFS=$IFS
c_IFS=$'\n'
IFS=$c_IFS
for SOURCE in $RESULT; do
replace_in_file "$FILE" "$SOURCE" "create $PERMISSIONS root utmp"
done
IFS=$d_IFS
else
ok "Logrotate permissions are well configured"
fi
fi
}
# This function will check config parameters required

15
tests/hardening/4.4_logrotate_permissions.sh
View File

@ -7,5 +7,18 @@ test_audit() {
# shellcheck disable=2154
run blank /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
# TODO fill comprehensive tests
describe Tests purposely failing
echo "create 0660 root utmp" >/etc/logrotate.conf
register_test retvalshouldbe 1
register_test contain "Logrotate permissions are not set to"
run noncompliant /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
describe correcting situation
sed -i 's/audit/enabled/' /opt/debian-cis/etc/conf.d/"${script}".cfg
/opt/debian-cis/bin/hardening/"${script}".sh --apply || true
describe Checking resolved state
register_test retvalshouldbe 0
register_test contain "Logrotate permissions are well configured"
run resolved /opt/debian-cis/bin/hardening/"${script}".sh --audit-all
}