mirror of
https://github.com/ovh/debian-cis.git
synced 2024-12-23 14:35:26 +01:00
115 lines
3.9 KiB
Bash
Executable File
115 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
#
|
|
# CIS Debian 7 Hardening
|
|
#
|
|
|
|
#
|
|
# 13.7 Check Permissions on User Home Directories (Scored)
|
|
#
|
|
|
|
set -e # One error, it's over
|
|
set -u # One variable unset, it's over
|
|
|
|
ERRORS=0
|
|
|
|
# This function will be called if the script status is on enabled / audit mode
|
|
audit () {
|
|
for dir in $(cat /etc/passwd | /bin/egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
|
|
debug "Working on $dir"
|
|
debug "Exceptions : $EXCEPTIONS"
|
|
debug "echo \"$EXCEPTIONS\" | grep -q $dir"
|
|
if echo "$EXCEPTIONS" | grep -q $dir; then
|
|
debug "$dir is confirmed as an exception"
|
|
RESULT=$(sed "s!$dir!!" <<< "$RESULT")
|
|
else
|
|
debug "$dir not found in exceptions"
|
|
fi
|
|
if [ -d $dir ]; then
|
|
dirperm=$(/bin/ls -ld $dir | cut -f1 -d" ")
|
|
if [ $(echo $dirperm | cut -c6 ) != "-" ]; then
|
|
crit "Group Write permission set on directory $dir"
|
|
ERRORS=$((ERRORS+1))
|
|
fi
|
|
if [ $(echo $dirperm | cut -c8 ) != "-" ]; then
|
|
crit "Other Read permission set on directory $dir"
|
|
ERRORS=$((ERRORS+1))
|
|
fi
|
|
if [ $(echo $dirperm | cut -c9 ) != "-" ]; then
|
|
crit "Other Write permission set on directory $dir"
|
|
ERRORS=$((ERRORS+1))
|
|
fi
|
|
if [ $(echo $dirperm | cut -c10 ) != "-" ]; then
|
|
crit "Other Execute permission set on directory $dir"
|
|
ERRORS=$((ERRORS+1))
|
|
fi
|
|
fi
|
|
done
|
|
|
|
if [ $ERRORS = 0 ]; then
|
|
ok "No incorrect permissions on home directories"
|
|
fi
|
|
|
|
}
|
|
|
|
# This function will be called if the script status is on enabled mode
|
|
apply () {
|
|
for dir in $(cat /etc/passwd | /bin/egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin" && $7 != "/bin/false" && $7 !="/nonexistent" ) { print $6 }'); do
|
|
debug "Working on $dir"
|
|
debug "Exceptions : $EXCEPTIONS"
|
|
debug "echo \"$EXCEPTIONS\" | grep -q $dir"
|
|
if echo "$EXCEPTIONS" | grep -q $dir; then
|
|
debug "$dir is confirmed as an exception"
|
|
RESULT=$(sed "s!$dir!!" <<< "$RESULT")
|
|
else
|
|
debug "$dir not found in exceptions"
|
|
fi
|
|
if [ -d $dir ]; then
|
|
dirperm=$(/bin/ls -ld $dir | cut -f1 -d" ")
|
|
if [ $(echo $dirperm | cut -c6 ) != "-" ]; then
|
|
warn "Group Write permission set on directory $dir"
|
|
chmod g-w $dir
|
|
fi
|
|
if [ $(echo $dirperm | cut -c8 ) != "-" ]; then
|
|
warn "Other Read permission set on directory $dir"
|
|
chmod o-r $dir
|
|
fi
|
|
if [ $(echo $dirperm | cut -c9 ) != "-" ]; then
|
|
warn "Other Write permission set on directory $dir"
|
|
chmod o-w $dir
|
|
fi
|
|
if [ $(echo $dirperm | cut -c10 ) != "-" ]; then
|
|
warn "Other Execute permission set on directory $dir"
|
|
chmod o-x $dir
|
|
fi
|
|
fi
|
|
done
|
|
}
|
|
|
|
# This function will check config parameters required
|
|
check_config() {
|
|
if [ -z "$EXCEPTIONS" ]; then
|
|
EXCEPTIONS="@"
|
|
fi
|
|
}
|
|
|
|
# Source Root Dir Parameter
|
|
if [ ! -r /etc/default/cis-hardening ]; then
|
|
echo "There is no /etc/default/cis-hardening file, cannot source CIS_ROOT_DIR variable, aborting"
|
|
exit 128
|
|
else
|
|
. /etc/default/cis-hardening
|
|
if [ -z ${CIS_ROOT_DIR:-} ]; then
|
|
echo "No CIS_ROOT_DIR variable, aborting"
|
|
exit 128
|
|
fi
|
|
fi
|
|
|
|
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
|
|
if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
|
|
. $CIS_ROOT_DIR/lib/main.sh
|
|
else
|
|
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
|
|
exit 128
|
|
fi
|