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SuseEnterpriseServer11CisAuditor.sh
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#!/bin/bash
function header {
echo
echo
echo " Audit Script "
echo " SUSE Linux Enterprise Server 11 - Security Auditor "
echo " Hamed Izadi (@hezd) "
echo
echo "###############################################################"
echo "###############################################################"
echo
}
function main_manual {
func_name=$1
echo "||| ${func_name}"
echo
shift
args=$@
${func_name} ${args}
line
}
function main_auto {
func_name=$1
shift
args=$@
${func_name} ${args}
if [[ "$?" -eq 0 ]]; then
tput setaf 2; echo ${func_name} ${args} OK
echo ; tput setaf 7;
else
tput setaf 1; echo ${func_name} ${args} ERROR
echo ; tput setaf 7;
fi
}
function line {
echo
tput setaf 7; echo "######################## MANUAL CHECK #########################"
echo
}
FSTAB='/etc/fstab'
function 1_Install_Updates_Patches_and_Additional_Security_Software {
zypper list-updates || return
}
function 2_Create_Separate_Partition_for_tmp {
local filesystem="/tmp"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" || return
}
function 3_Set_nodev_option_for_tmp_Partition {
local filesystem="/tmp"
local mnt_option="nodev"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" | grep "${mnt_option}" || return
mount | grep "[[:space:]]${filesystem}[[:space:]]" | grep "${mnt_option}" || return
}
function 4_Set_nosuid_option_for_tmp_Partition {
local filesystem="/tmp"
local mnt_option="nosuid"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" | grep "${mnt_option}" || return
mount | grep "[[:space:]]${filesystem}[[:space:]]" | grep "${mnt_option}" || return
}
function 5_Set_noexec_option_for_tmp_Partition {
local filesystem="/tmp"
local mnt_option="noexec"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" | grep "${mnt_option}" || return
mount | grep "[[:space:]]${filesystem}[[:space:]]" | grep "${mnt_option}" || return
}
function 6_Create_Separate_Partition_for_var {
local filesystem="/var"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" || return
}
function 7_Bind_Mount_the_vartmp_directory_to_tmp {
local directory="/var/tmp"
local filesystem="/tmp"
local E_NO_MOUNT_OUTPUT=1
grep "^${filesystem}[[:space:]]" "${FSTAB}" | grep "${directory}" || return
local grep_mount
grep_mount=$(mount | grep "^${filesystem}[[:space:]]" | grep "${directory}")
local fs_dev
local dir_dev
fs_dev="$(mount | grep "[[:space:]]${filesystem}[[:space:]]" | cut -d" " -f1)"
dir_dev="$(mount | grep "[[:space:]]${directory}[[:space:]]" | cut -d" " -f1)"
if [[ -z "${grep_mount}" ]] && [[ "${fs_dev}" != "${dir_dev}" ]] ; then
return "${E_NO_MOUNT_OUTPUT}"
fi
}
function 8_Create_Separate_Partition_for_var_log {
local filesystem="/var/log"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" || return
}
function 9_Create_Separate_Partition_for_varlog_audit {
local filesystem="/var/log/audit"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" || return
}
function 10_Create_Separate_Partition_for_home {
local filesystem="/home"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" || return
}
function 11_Add_nodev_Option_to_home {
local filesystem="/home"
local mnt_option="nodev"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" | grep "${mnt_option}" || return
mount | grep "[[:space:]]${filesystem}[[:space:]]" | grep "${mnt_option}" || return
}
function 12_Add_nodev_Option_to_Removable_Media_Partitions {
echo "#mount"
mount
}
function 13_Add_noexec_Option_to_Removable_Media_Partitions {
echo "#mount"
mount
}
function 14_Add_nosuid_Option_to_Removable_Media_Partitions {
echo "#mount"
mount
}
function 15_Add_nodev_Option_to_devshm_Partition {
local filesystem="/dev/shm"
local mnt_option="nodev"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" | grep "${mnt_option}" || return
mount | grep "[[:space:]]${filesystem}[[:space:]]" | grep "${mnt_option}" || return
}
function 16_Add_nosuid_Option_to_devshm_Partition {
local filesystem="/dev/shm"
local mnt_option="nosuid"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" | grep "${mnt_option}" || return
mount | grep "[[:space:]]${filesystem}[[:space:]]" | grep "${mnt_option}" || return
}
function 17_Add_noexec_Option_to_devshm_Partition {
local filesystem="/dev/shm"
local mnt_option="noexec"
grep "[[:space:]]${filesystem}[[:space:]]" "${FSTAB}" | grep "${mnt_option}" || return
mount | grep "[[:space:]]${filesystem}[[:space:]]" | grep "${mnt_option}" || return
}
function 18_Set_Sticky_Bit_on_All_World_Writable_Directories {
dirs="$(df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' sudo find '{}' -xdev -type d \
\( -perm -0002 -a ! -perm -1000 \))"
[[ -z "${dirs}" ]] || return
}
function 19_Disable_Mounting_of_cramfs_Filesystems {
local module="cramfs"
/sbin/modprobe -n -v ${module} | grep "install \+/bin/true" || return
lsmod | grepv "${module}" || return
}
function 20_Disable_Mounting_of_freevxfs_Filesystems {
local module="freexvfs"
/sbin/modprobe -n -v ${module} | grep "install \+/bin/true" || return
lsmod | grepv "${module}" || return
}
function 21_Disable_Mounting_of_jffs_Filesystems {
local module="jffs2"
/sbin/modprobe -n -v ${module} | grep "install \+/bin/true" || return
lsmod | grepv "${module}" || return
}
function 22_Disable_Mounting_of_hfs_Filesystems {
local module="hfs"
/sbin/modprobe -n -v ${module} | grep "install \+/bin/true" || return
lsmod | grepv "${module}" || return
}
function 23_Disable_Mounting_of_hfsplus_Filesystems {
local module="hfsplus"
/sbin/modprobe -n -v ${module} | grep "install \+/bin/true" || return
lsmod | grepv "${module}" || return
}
function 24_Disable_Mounting_of_squashfs_Filesystems {
local module="squashfs"
/sbin/modprobe -n -v ${module} | grep "install \+/bin/true" || return
lsmod | grepv "${module}" || return
}
function 25_Disable_Mounting_of_udf_Filesystems {
local module="udf"
/sbin/modprobe -n -v ${module} | grep "install \+/bin/true" || return
lsmod | grepv "${module}" || return
}
function 26_Disable_Automounting {
/sbin/chkconfig --list autofs | grep -v "on" || return
}
function 27_Set_UserGroup_Owner_on_bootloader_config {
local file="/boot/grub/menu.lst"
stat -L -c "%u %g" ${file} | grep '0 0' || return
}
function 28_Set_Permissions_on_bootloader_config {
stat -L -c "%a" /boot/grub/menu.lst | grep '.00' || return
}
function 29_Set_Boot_Loader_Password {
grep "^password" /boot/grub/menu.ls || return
}
function 30_Require_Authentication_for_Single_User_Mode {
grep "~~:S:respawn" /etc/inittab || return
}
function 31_Disable_Interactive_Boot {
grep "^PROMPT_FOR_CONFIRM=" /etc/sysconfig/boot | grep no || return
}
function 32_Restrict_Core_Dumps {
egrep "\*{1}[[:space:]]+hard[[:space:]]+core[[:space:]]+0" "/etc/security/limits.conf" || return
cut -d\# -f1 /etc//sbin/sysctl.conf | grep fs.suid_dumpable | cut -d= -f2 | tr -d '[[:space:]]' | grep '0' || return
}
function 33_Enable_XDNX_Support_on_bit_x86_Systems {
dmesg | grep NX NX || return
}
function 34_Enable_Randomized_Virtual_Memory_Region_Placement {
local flag="kernel.randomize_va_space"
local value="2"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 35_Disable_Prelink {
run "rpm -q prelink"
local rpm="openldap2"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 36_Activate_AppArmor {
apparmor_status || return
}
function 37_Ensure_NIS_Server_is_not_enabled {
/sbin/chkconfig --list ypserv | grep -v "on" || return
}
function 38_Ensure_NIS_Client_is_not_installed {
run "rpm -q ypbind"
local rpm="openldap2"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 39_Ensure_rsh_server_is_not_enabled {
/sbin/chkconfig --list rsh | grep -v "on" || return
}
function 40_Ensure_rsh_client_is_not_installed {
local rpm="rsh"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 41_Ensure_talk_server_is_not_enabled {
/sbin/chkconfig --list talk | grep -v "on" || return
}
function 42_Ensure_talk_client_is_not_installed {
local rpm="talk"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 43_Ensure_telnet_server_is_not_enabled {
/sbin/chkconfig --list telnet | grep -v "on" || return
}
function 44_Ensure_tftp_server_is_not_enabled {
/sbin/chkconfig --list tftp | grep -v "on" || return
}
function 45_Ensure_xinetd_is_not_enabled {
/sbin/chkconfig --list xinetd | grep -v "on" || return
}
function 46_Ensure_chargen_udp_is_not_enabled {
/sbin/chkconfig --list chargen-udp | grep -v "on" || return
}
function 47_Ensure_chargen_is_not_enabled {
/sbin/chkconfig --list chargen | grep -v "on" || return
}
function 48_Ensure_daytime_udp_is_not_enabled {
/sbin/chkconfig --list daytime-udp | grep -v "on" || return
}
function 49_Ensure_daytime_is_not_enabled {
/sbin/chkconfig --list daytime | grep -v "on" || return
}
function 50_Ensure_echo_udp_is_not_enabled {
/sbin/chkconfig --list echo-udp | grep -v "on" || return
}
function 51_Ensure_echo_is_not_enabled {
/sbin/chkconfig --list echo | grep -v "on" || return
}
function 52_Ensure_discard_udp_is_not_enabled {
/sbin/chkconfig --list discard-udp | grep -v "on" || return
}
function 53_Ensure_discard_is_not_enabled {
/sbin/chkconfig --list discard | grep -v "on" || return
}
function 54_Ensure_time_udp_is_not_enabled {
/sbin/chkconfig --list time-udp | grep -v "on" || return
}
function 55_Ensure_time_is_not_enabled {
/sbin/chkconfig --list xorg-x11 | grep -v "on" || return
}
function 56_Ensure_X_Windows_is_not_installed {
local rpm="xorg-x11"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 57_Ensure_Avahi_Server_is_not_enabled {
/sbin/chkconfig --list avahi-daemon | grep -v "on" || return
}
function 58_Ensure_print_server_is_not_enabled {
/sbin/chkconfig --list cups | grep -v "on" || return
}
function 59_Ensure_DHCP_Server_is_not_enabled {
/sbin/chkconfig --list dhcpd | grep -v "on" || return
}
function 60_Configure_Network_Time_Protocol_NTP {
cut -d\# -f1 /etc/ntp.conf | egrep "restrict{1}[[:space:]]+default{1}" /etc/ntp.conf | grep kod \
| grep nomodify | grep notrap | grep nopeer | grep noquery || return
cut -d\# -f1 /etc/ntp.conf | egrep "restrict{1}[[:space:]]+\-6{1}[[:space:]]+default" | grep kod \
| grep nomodify | grep notrap | grep nopeer | grep noquery || return
cut -d\# -f1 /etc/ntp.conf | egrep "^[[:space:]]*server" || return
cut -d\# -f1 /etc/sysconfig/ntp | grep "OPTIONS=" | grep "ntp:ntp" || return
}
function 61_Ensure_LDAP_is_not_enabled {
local rpm="openldap2"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 62_Ensure_NFS_and_RPC_are_not_enabled {
/sbin/chkconfig --list nfs | grep -v "on" || return
/sbin/chkconfig --list rpcbind | grep -v "on" || return
}
function 63_Ensure_DNS_Server_is_not_enabled {
/sbin/chkconfig --list named | grep -v "on" || return
}
function 64_Ensure_FTP_Server_is_not_enabled {
/sbin/chkconfig --list vsftpd | grep -v "on" || return
}
function 65_Ensure_HTTP_Server_is_not_enabled {
/sbin/chkconfig --list apache2 | grep -v "on" || return
}
function 66_Ensure_IMAP_and_POP_server_is_not_enabled {
/sbin/chkconfig --list cyrus | grep -v "on" || return
}
function 67_Ensure_Samba_is_not_enabled {
/sbin/chkconfig --list smb | grep -v "on" || return
}
function 68_Ensure_HTTP_Proxy_Server_is_not_enabled {
/sbin/chkconfig --list squid | grep -v "on" || return
}
function 69_Ensure_SNMP_Server_is_not_enabled {
/sbin/chkconfig --list snmpd | grep -v "on" || return
}
function 70_Configure_Mail_Transfer_Agent_for_Local_Only_Mode {
netstat_out="$(netstat -an | grep "LIST" | grep ":25[[:space:]]")"
if [[ "$?" -eq 0 ]] ; then
ip=$(echo ${netstat_out} | cut -d: -f1 | cut -d" " -f4)
[[ "${ip}" = "127.0.0.1" ]] || return
fi
}
function 71_Ensure_rsync_service_is_not_enabled {
/sbin/chkconfig --list rsyncd | grep -v "on" || return
}
function 72_Ensure_Biosdevname_is_not_enabled {
local rpm="biosdevname"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 73_Disable_IP_Forwarding {
local flag="net.ipv4.ip_forward"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 74_Disable_Send_Packet_Redirects {
local flag="net.ipv4.conf.all.send_redirects"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
local flag="net.ipv4.conf.default.send_redirects"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 75_Disable_Source_Routed_Packet_Acceptance {
local flag="net.ipv4.conf.all.accept_source_route"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
local flag="net.ipv4.conf.default.accept_source_routed"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 76_Disable_ICMP_Redirect_Acceptance {
local flag="net.ipv4.conf.all.accept_redirects"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
local flag="net.ipv4.conf.default.accept_redirecta"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 77_Disable_Secure_ICMP_Redirect_Acceptance {
local flag="net.ipv4.conf.all.secure_redirects"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
local flag="net.ipv4.conf.default.secure_redirects"
local value="0"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 78_Log_Suspicious_Packets {
local flag="net.ipv4.conf.all.log_martians"
local value="1"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
local flag="net.ipv4.conf.default.log_martians"
local value="1"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 79_Enable_Ignore_Broadcast_Requests {
local flag="net.ipv4.icmp_echo_ignore_broadcasts"
local value="1"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 80_Enable_Bad_Error_Message_Protection {
local flag="net.ipv4.icmp_ignore_bogus_error_responses"
local value="1"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 81_Enable_RFC_recommended_Source_Route_Validation {
local flag="net.ipv4.conf.all.rp_filter"
local value="1"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
local flag="net.ipv4.conf.default.rp_filter"
local value="1"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 82_Enable_TCP_SYN_Cookies {
local flag="net.ipv4.tcp_syncookies"
local value="1"
/sbin/sysctl "${flag}" | cut -d= -f2 | tr -d '[[:space:]]' | grep "${value}" || return
}
function 83_Disable_IPv6_Router_Advertisements {
/sbin/sysctl net.ipv6.conf.all.accept_ra | grep 0 || return
/sbin/sysctl net.ipv6.conf.default.accept_ra | grep 0 || return
}
function 84_Disable_IPv6_Redirect_Acceptance {
/sbin/sysctl net.ipv6.conf.all.accept_redirects | grep 0 || return
/sbin/sysctl net.ipv6.conf.default.accept_redirects | grep 0 || return
}
function 85_Disable_IPv6 {
grep ipv6 /etc/modprobe.d/ipv6.conf | grep "disable=1" || return
}
function 86_Install_TCP_Wrappers {
local rpm="openldap2"
rpm -q ${rpm} | grep "package ${rpm} is not installed" || return
}
function 87_Create_etchostsallow {
local file="/etc/hosts.allow"
[[ -f "${file}" ]] || return
}
function 88_Verify_Permissions_on_etchostsallow {
local file="/etc/hosts.allow"
stat -L -c "%u %g" ${file} | grep '0 0' || return
local file="/etc/hosts.allow"
local pattern="644"
stat -L -c "%a" ${file} | grep "${pattern}" || return
}
function 89_Create_etchostsdeny {
local file="/etc/hosts.deny"
[[ -f "${file}" ]] || return
}
function 90_Verify_Permissions_on_etchostsdeny {
local file="/etc/hosts.deny"
local pattern="644"
stat -L -c "%a" ${file} | grep "${pattern}" || return
}
function 91_Disable_DCCP {
local protocol="dccp"
local file="/etc/modprobe.d/CIS.conf"
grep "install[[:space:]]${protocol}[[:space:]]/bin/true" ${file} || return
}
function 92_Disable_SCTP {
local protocol="sctp"
local file="/etc/modprobe.d/CIS.conf"
grep "install[[:space:]]${protocol}[[:space:]]/bin/true" ${file} || return
}
function 93_Disable_RDS {
local protocol="rds"
local file="/etc/modprobe.d/CIS.conf"
grep "install[[:space:]]${protocol}[[:space:]]/bin/true" ${file} || return
}
function 94_Disable_TIPC {
local protocol="tipc"
local file="/etc/modprobe.d/CIS.conf"
grep "install[[:space:]]${protocol}[[:space:]]/bin/true" ${file} || return
}
function 95_Deactivate_Wireless_Interfaces {
echo "#ifconfig -a"
ifconfig -a
}
function 96_SuSEfirewall_is_active {
/sbin/chkconfig --list SuSEfirewall2_setup | grep -v "off" || return
}
function 97_Limit_access_to_trusted_networks {
echo "#grep "^FW_TRUSTED_NETS" /etc/sysconfig/SuSEfirewall2"
grep "^FW_TRUSTED_NETS" /etc/sysconfig/SuSEfirewall2
}
function 98_Configure_Audit_Log_Storage_Size {
cut -d\# -f1 /etc/audit/auditd.conf | egrep "max_log_file[[:space:]]|max_log_file=" || return
}
function 99_Disable_System_on_Audit_Log_Full {
cut -d\# -f2 /etc/audit/auditd.conf | grep 'space_left_action' | cut -d= -f2 | tr -d '[[:space:]]' | grep 'email' || return
cut -d\# -f2 /etc/audit/auditd.conf | grep 'action_mail_acct' | cut -d= -f2 | tr -d '[[:space:]]' | grep 'root' || return
cut -d\# -f2 /etc/audit/auditd.conf | grep 'admin_space_left_action' | cut -d= -f2 | tr -d '[[:space:]]' | grep 'halt' || return
}
function 100_Keep_All_Auditing_Information {
cut -d\# -f2 /etc/audit/auditd.conf | grep 'max_log_file_action' | cut -d= -f2 | tr -d '[[:space:]]' | grep 'keep_logs' || return
}
function 101_Enable_auditd_Service {
/sbin/chkconfig --list auditd | grep -v "off" || return
}
function 102_Enable_Auditing_for_Processes_That_Start_Prior_to_auditd {
grep_grub="$(grep "^[[:space:]]*linux" /boot/grub/menu.lst | grep -v 'audit=1')"
[[ -z "${grep_grub}" ]] || return
}
function 103_Record_Events_That_Modify_Date_and_Time_Information {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+time-change" | egrep "\-S[[:space:]]+settimeofday" \
| egrep "\-S[[:space:]]+adjtimex" | egrep "\-F[[:space:]]+arch=b64" | egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+time-change" | egrep "\-S[[:space:]]+settimeofday" \
| egrep "\-S[[:space:]]+adjtimex" | egrep "\-F[[:space:]]+arch=b32" | egrep "\-S[[:space:]]+stime" | egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+time-change" | egrep "\-F[[:space:]]+arch=b64" \
| egrep "\-S[[:space:]]+clock_settime" | egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+time-change" | egrep "\-F[[:space:]]+arch=b32" \
| egrep "\-S[[:space:]]+clock_settime" | egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 $/etc/audit/audit.rules | egrep "\-k[[:space:]]+time-change" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/localtime" || return
}
function 104_Record_Events_That_Modify_UserGroup_Information {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+identity" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/group" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+identity" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/passwd" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+identity" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/gshadow" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+identity" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/shadow" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+identity" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/security\/opasswd" || return
}
function 105_Record_Events_That_Modify_the_Systems_Network_Environment {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+system-locale" | egrep "\-S[[:space:]]+sethostname" \
| egrep "\-S[[:space:]]+setdomainname" | egrep "\-F[[:space:]]+arch=b64" | egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+system-locale" | egrep "\-S[[:space:]]+sethostname" \
| egrep "\-S[[:space:]]+setdomainname" | egrep "\-F[[:space:]]+arch=b32" | egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+system-locale" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/issue" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+system-locale" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/issue.net" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+system-locale" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/hosts" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+system-locale" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/sysconfig\/network" || return
}
function 106_Record_Events_That_Modify_the_Systems_Mandatory_Access_Controls {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+MAC-policy" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/selinux\/" || return
}
function 107_Collect_Login_and_Logout_Events {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+logins" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/var\/log\/faillog" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+logins" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/var\/log\/lastlog" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+logins" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/var\/log\/tallylog" || return
}
function 108_Collect_Session_Initiation_Information {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+MAC-policy" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/selinux\/" || return
}
function 109_Collect_Discretionary_Access_Control_Permission_Modification_Events {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+session" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/var\/run\/utmp" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+session" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/var\/log\/wtmp" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+session" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/var\/log\/btmp" || return
}
function 110_Collect_Unsuccessful_Unauthorized_Access_Attempts_to_Files {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+access" | egrep "\-S[[:space:]]+creat" \
| egrep "\-S[[:space:]]+open" | egrep "\-S[[:space:]]+openat" | egrep "\-S[[:space:]]+truncate" \
| egrep "\-S[[:space:]]+ftruncate" | egrep "\-F[[:space:]]+arch=b64" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" | egrep "\-F[[:space:]]exit=\-EACCES" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+access" | egrep "\-S[[:space:]]+creat" \
| egrep "\-S[[:space:]]+open" | egrep "\-S[[:space:]]+openat" | egrep "\-S[[:space:]]+truncate" \
| egrep "\-S[[:space:]]+ftruncate" | egrep "\-F[[:space:]]+arch=b32" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" | egrep "\-F[[:space:]]exit=\-EACCES" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+access" | egrep "\-S[[:space:]]+creat" \
| egrep "\-S[[:space:]]+open" | egrep "\-S[[:space:]]+openat" | egrep "\-S[[:space:]]+truncate" \
| egrep "\-S[[:space:]]+ftruncate" | egrep "\-F[[:space:]]+arch=b64" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" | egrep "\-F[[:space:]]exit=\-EPERM" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+access" | egrep "\-S[[:space:]]+creat" \
| egrep "\-S[[:space:]]+open" | egrep "\-S[[:space:]]+openat" | egrep "\-S[[:space:]]+truncate" \
| egrep "\-S[[:space:]]+ftruncate" | egrep "\-F[[:space:]]+arch=b32" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" | egrep "\-F[[:space:]]exit=\-EPERM" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
}
function 111_Collect_Use_of_Privileged_Commands {
local priv_cmds
priv_cmds="$(find / -xdev \( -perm -4000 -o -perm -2000 \) -type f)"
for cmd in ${priv_cmds} ; do
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+privileged" | egrep "\-F[[:space:]]+path=${cmd}" \
| egrep "\-F[[:space:]]+perm=x" | egrep "\-F[[:space:]]+auid>=1000" | egrep "\-F[[:space:]]+auid\!=4294967295" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
done
}
function 112_Collect_Successful_File_System_Mounts {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+mounts" | egrep "\-S[[:space:]]+mount" \
| egrep "\-F[[:space:]]+arch=b64" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+mounts" | egrep "\-S[[:space:]]+mount" \
| egrep "\-F[[:space:]]+arch=b32" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
}
function 113_Collect_File_Deletion_Events_by_User {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+delete" | egrep "\-S[[:space:]]+unlink" \
| egrep "\-F[[:space:]]+arch=b64" | egrep "\-S[[:space:]]+unlinkat" | egrep "\-S[[:space:]]+rename" \
| egrep "\-S[[:space:]]+renameat" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+delete" | egrep "\-S[[:space:]]+unlink" \
| egrep "\-F[[:space:]]+arch=b32" | egrep "\-S[[:space:]]+unlinkat" | egrep "\-S[[:space:]]+rename" \
| egrep "\-S[[:space:]]+renameat" | egrep "\-F[[:space:]]+auid>=1000" \
| egrep "\-F[[:space:]]+auid\!=4294967295" \
| egrep "\-a[[:space:]]+always,exit|\-a[[:space:]]+exit,always" || return
}
function 115_Collect_System_Administrator_Actions_sudolog {
echo "#scope /etc/audit/audit.rules"
grep scope /etc/audit/audit.rules
}
function 114_Collect_Changes_to_System_Administration_Scope_sudoers {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+scope" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/etc\/sudoers" || return
}
function 116_Collect_Kernel_Module_Loading_and_Unloading {
cut -d\# -f1 /etc/audit/audit.rules | egrep "\-k[[:space:]]+actions" | egrep "\-p[[:space:]]+wa" \
| egrep "\-w[[:space:]]+\/var\/log\/sudo.log" || return
}
function 117_Make_the_Audit_Configuration_Immutable {
cut -d\# -f1 /etc/audit/audit.rules | egrep "^-e[[:space:]]+2" || return
}
function 118_Install_the_rsyslog_package {