# OSSEC Linux Audit - (C) 2018 # # Released under the same license as OSSEC. # More details at the LICENSE file included with OSSEC or online # at: https://github.com/ossec/ossec-hids/blob/master/LICENSE # # [Application name] [any or all] [reference] # type:; # # Type can be: # - f (for file or directory) # - r (registry entry) # - p (process running) # # Additional values: # For the registry and for directories, use "->" to look for a specific entry and another # "->" to look for the value. # Also, use " -> r:^\. -> ..." to search all files in a directory # For files, use "->" to look for a specific value in the file. # # Values can be preceeded by: =: (for equal) - default # r: (for ossec regexes) # >: (for strcmp greater) # <: (for strcmp lower) # Multiple patterns can be specified by using " && " between them. # (All of them must match for it to return true). # Level 1 CIS Checks for Debian Linux 7 and Debian Linux 8 # Based on Center for Internet Security Benchmark v1.0.0 for Debian Linux 7 (https://workbench.cisecurity.org/benchmarks/80) and Benchmark v1.0.0 for Debian Linux 8 (https://workbench.cisecurity.org/benchmarks/81) # $rc_dirs=/etc/rc0.d,/etc/rc1.d,/etc/rc2.d,/etc/rc3.d,/etc/rc4.d,/etc/rc5.d,/etc/rc6.d,/etc/rc7.d,/etc/rc8.d,/etc/rc9.d,/etc/rca.d,/etc/rcb.d,/etc/rcc.d,/etc/rcs.d,/etc/rcS.d; $rsyslog_files=/etc/rsyslog.conf,/etc/rsyslog.d/*; $profiledfiles=/etc/profile.d/*; $home_dirs=/usr2/home/*,/home/*,/home,/*/home/*,/*/home,/; # # #2.1 Create Separate Partition for /tmp [CIS - Debian Linux 7/8 - 2.1 Create Separate Partition for /tmp] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/tmp; # # #2.2 Set nodev option for /tmp Partition [CIS - Debian Linux 7/8 - 2.2 Set nodev option for /tmp Partition] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/tmp\s+\w+\s+\.*nodev; # # #2.3 Set nosuid option for /tmp Partition [CIS - Debian Linux 7/8 - 2.3 Set nosuid option for /tmp Partition] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/tmp\s+\w+\s+\.*nosuid; # # #2.4 Set noexec option for /tmp Partition [CIS - Debian Linux 7/8 - 2.4 Set noexec option for /tmp Partition] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/tmp\s+\w+\s+\.*noexec; # # #2.5 Create Separate Partition for /var [CIS - Debian Linux 7/8 - 2.5 Create Separate Partition for /var] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/var; # # #2.6 Bind Mount the /var/tmp directory to /tmp [CIS - Debian Linux 7/8 - 2.6 Bind Mount the /var/tmp directory to /tmp] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/tmp\s+/var/tmp\s+none\s+\.*bind\.*0\s+0; # # #2.7 Create Separate Partition for /var/log [CIS - Debian Linux 7/8 - 2.7 Create Separate Partition for /var/log] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/var/log; # # #2.8 Create Separate Partition for /var/log/audit [CIS - Debian Linux 7/8 - 2.8 Create Separate Partition for /var/log/audit] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/var/log/audit; # # #2.9 Create Separate Partition for /home [CIS - Debian Linux 7/8 - 2.9 Create Separate Partition for /home] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/home; # # #2.10 Add nodev Option to /home [CIS - Debian Linux 7/8 - 2.10 Add nodev Option to /home] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/home\s+\w+\s+\.*nodev; # # #2.11 Add nodev Option to Removable Media Partitions [CIS - Debian Linux 7/8 - 2.11 Add nodev Option to Removable Media Partitions] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/media\.*\s+\w+\s+\.*nodev; # # #2.12 Add noexec Option to Removable Media Partitions [CIS - Debian Linux 7/8 - 2.12 Add noexec Option to Removable Media Partitions] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/media\.*\s+\w+\s+\.*noexec; # # #2.13 Add nosuid Option to Removable Media Partitions [CIS - Debian Linux 7/8 - 2.13 Add nosuid Option to Removable Media Partitions] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/media\.*\s+\w+\s+\.*nosuid; # # #2.14 Add nodev Option to /run/shm Partition [CIS - Debian Linux 7/8 - 2.14 Add nodev Option to /run/shm Partition] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/run/shm\s+\w+\s+\.*nodev; # # #2.15 Add nosuid Option to /run/shm Partition [CIS - Debian Linux 7/8 - 2.15 Add nosuid Option to /run/shm Partition] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/run/shm\s+\w+\s+\.*nosuid; # # #2.16 Add noexec Option to /run/shm Partition [CIS - Debian Linux 7/8 - 2.16 Add noexec Option to /run/shm Partition] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/fstab -> !r:/run/shm\s+\w+\s+\.*noexec; # # #2.25 Disable Automounting [CIS - Debian Linux 7/8 - 2.25 Disable Automounting] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:autofsc; # # #3.3 Set Boot Loader Password [CIS - Debian Linux 7/8 - 3.3 Set Boot Loader Password] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/boot/grub/grub.cfg -> !r:^set superusers; f:/boot/grub/grub.cfg -> !r:^password; f:/etc/grub.d -> !r:^set superusers; f:/etc/grub.d -> !r:^password; # # #3.4 Require Authentication for Single-User Mode [CIS - Debian Linux 7/8 - 3.4 Require Authentication for Single-User Mode] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/shadow -> r:^root:!:; f:/etc/shadow -> r:^root:*:; f:/etc/shadow -> r:^root:*!:; f:/etc/shadow -> r:^root:!*:; # # #4.1 Restrict Core Dumps [CIS - Debian Linux 7/8 - 4.1 Restrict Core Dumps] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/security/limits.conf -> !r:^* hard core 0; f:/etc/sysctl.conf -> !r:^fs.suid_dumpable = 0; # # #4.3 Enable Randomized Virtual Memory Region Placement [CIS - Debian Linux 7/8 - 4.3 Enable Randomized Virtual Memory Region Placement] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^kernel.randomize_va_space = 2; # # #5.1.1 Ensure NIS is not installed [CIS - Debian Linux 7/8 - 5.1.1 Ensure NIS is not installed] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/init.d/nis; # # #5.1.2 Ensure rsh server is not enabled [CIS - Debian Linux 7/8 - 5.1.2 Ensure rsh server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:shell|login|exec; # # #5.1.4 Ensure talk server is not enabled [CIS - Debian Linux 7/8 - 5.1.4 Ensure talk server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:talk|ntalk; # # #5.1.6 Ensure telnet server is not enabled [CIS - Debian Linux 7/8 - 5.1.6 Ensure telnet server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:telnet; # # #5.1.7 Ensure tftp-server is not enabled [CIS - Debian Linux 7/8 - 5.1.7 Ensure tftp-server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:tftp; # # #5.1.8 Ensure xinetd is not enabled [CIS - Debian Linux 7/8 - 5.1.8 Ensure xinetd is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:xinetd; # # #5.2 Ensure chargen is not enabled [CIS - Debian Linux 7/8 - 5.2 Ensure chargen is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:chargen; # # #5.3 Ensure daytime is not enabled [CIS - Debian Linux 7/8 - 5.3 Ensure daytime is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:daytime; # # #5.4 Ensure echo is not enabled [CIS - Debian Linux 7/8 - 5.4 Ensure echo is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:echo; # # #5.5 Ensure discard is not enabled [CIS - Debian Linux 7/8 - 5.5 Ensure discard is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:discard; # # #5.6 Ensure time is not enabled [CIS - Debian Linux 7/8 - 5.6 Ensure time is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/inetd.conf -> !r:^# && r:time; # # #6.2 Ensure Avahi Server is not enabled [CIS - Debian Linux 7/8 - 6.2 Ensure Avahi Server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:avahi-daemon; # # #6.3 Ensure print server is not enabled [CIS - Debian Linux 7/8 - 6.3 Ensure print server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:cups; d:$rc_dirs -> S -> r:cups-browsed; # # #6.4 Ensure DHCP Server is not enabled [CIS - Debian Linux 7/8 - 6.4 Ensure DHCP Server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:disc-dhcp-server; # # #6.5 Configure Network Time Protocol (NTP) [CIS - Debian Linux 7/8 - 6.5 Configure Network Time Protocol (NTP)] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ntp.conf -> !r:^restrict -4 default kod nomodify notrap nopeer noquery; f:/etc/ntp.conf -> !r:^restrict -6 default kod nomodify notrap nopeer noquery; f:/etc/ntp.conf -> !r:^server\s\.+; # # #6.6 Ensure LDAP is not ennabled [CIS - Debian Linux 7/8 - 6.6 Ensure LDAP is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:/etc/init.d -> r:ldap; # # #6.7 Ensure NFS and RPC are not enabled [CIS - Debian Linux 7/8 - 6.7 Ensure NFS and RPC are not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:rpcbind; d:$rc_dirs -> S -> r:nfs-kernel-server; # # #6.8 Ensure DNS Server is not enabled [CIS - Debian Linux 7/8 - 6.8 Ensure DNS Server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:bind9; # # #6.9 Ensure FTP Server is not enabled [CIS - Debian Linux 7/8 - 6.9 Ensure FTP Server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:vsftpd; # # #6.10 Ensure HTTP Server is not enabled [CIS - Debian Linux 7/8 - 6.10 Ensure HTTP Server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:apache2; # # #6.11 Ensure IMAP and POP server is not enabled [CIS - Debian Linux 7/8 - 6.11 Ensure IMAP and POP server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:dovecot; # # #6.12 Ensure Samba is not enabled [CIS - Debian Linux 7/8 - 6.12 Ensure Samba is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:samba; # # #6.13 Ensure HTTP Proxy Server is not enabled [CIS - Debian Linux 7/8 - 6.13 Ensure HTTP Proxy Server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:squid3; # # #6.14 Ensure SNMP Server is not enabled [CIS - Debian Linux 7/8 - 6.14 Ensure SNMP Server is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$rc_dirs -> S -> r:snmpd; # # #6.15 Configure Mail Transfer Agent for Local-Only Mode [CIS - Debian Linux 7/8 - 6.15 Configure Mail Transfer Agent for Local Only Mode] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/exim4/update-exim4.conf.conf -> r:^dc_local_interfaces= && !r:'127.0.0.1\s*\p\s*::1'$|'::1\s*\p\s*127.0.0.1'$|'127.0.0.1'$|'::1'$; # # #6.16 Ensure rsync service is not enabled [CIS - Debian Linux 7/8 - 6.16 Ensure rsync service is not enabled] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/default/rsync -> !r:^# && r:RSYNC_ENABLE=true|inetd; f:/etc/default/rsync -> !r:^RSYNC_ENABLE=false; # # #7.1.1 Disable IP Forwarding [CIS - Debian Linux 7/8 - 7.1.1 Disable IP Forwarding] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.ip_forward=1; f:/etc/sysctl.conf -> !r:^net.ipv4.ip_forward=0; # # #7.1.2 Disable Send Packet Redirects [CIS - Debian Linux 7/8 - 7.1.2 Disable Send Packet Redirects] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.all.send_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.all.send_redirects=0; f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.default.send_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.default.send_redirects=0; # # #7.2.1 Disable Source Routed Packet Acceptance [CIS - Debian Linux 7/8 - 7.2.1 Disable Source Routed Packet Acceptance] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.all.accept_source_route=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.all.accept_source_route=0; f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.default.accept_source_route=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.default.accept_source_route=0; # # #7.2.2 Disable ICMP Redirect Acceptance [CIS - Debian Linux 7/8 - 7.2.2 Disable ICMP Redirect Acceptance] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.all.accept_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.all.accept_redirects=0; f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.default.accept_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.default.accept_redirects=0; # # #7.2.3 Disable Secure ICMP Redirect Acceptance [CIS - Debian Linux 7/8 - 7.2.3 Disable Secure ICMP Redirect Acceptance] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.all.secure_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.all.secure_redirects=0; f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.default.secure_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.default.secure_redirects=0; # # #7.2.4 Log Suspicious Packets [CIS - Debian Linux 7/8 - 7.2.4 Log Suspicious Packets] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.all.log_martians=0; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.all.log_martians=1; f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.default.log_martians=0; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.default.log_martians=1; # # #7.2.5 Enable Ignore Broadcast Requests [CIS - Debian Linux 7/8 - 7.2.5 Enable Ignore Broadcast Requests] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.icmp_echo_ignore_broadcasts=0; f:/etc/sysctl.conf -> !r:^net.ipv4.icmp_echo_ignore_broadcasts=1; # # #7.2.6 Enable Bad Error Message Protection [CIS - Debian Linux 7/8 - 7.2.6 Enable Bad Error Message Protection] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.icmp_ignore_bogus_error_responses=0; f:/etc/sysctl.conf -> !r:^net.ipv4.icmp_ignore_bogus_error_responses=1; # # #7.2.7 Enable RFC-recommended Source Route Validation [CIS - Debian Linux 7/8 - 7.2.7 Enable RFC-recommended Source Route Validation] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.all.rp_filter=0; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.all.rp_filter=1; f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.conf.default.rp_filter=0; f:/etc/sysctl.conf -> !r:^net.ipv4.conf.default.rp_filter=1; # # #7.2.8 Enable TCP SYN Cookies [CIS - Debian Linux 7/8 - 7.2.8 Enable TCP SYN Cookies] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv4.tcp_syncookies=0; f:/etc/sysctl.conf -> !r:^net.ipv4.tcp_syncookies=1; # # #7.3.1 Disable IPv6 Router Advertisements [CIS - Debian Linux 7/8 - 7.3.1 Disable IPv6 Router Advertisements] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv6.conf.all.accept_ra=1; f:/etc/sysctl.conf -> !r:^net.ipv6.conf.all.accept_ra=0; f:/etc/sysctl.conf -> !r:^# && r:net.ipv6.conf.default.accept_ra=1; f:/etc/sysctl.conf -> !r:^net.ipv6.conf.default.accept_ra=0; # # #7.3.2 Disable IPv6 Redirect Acceptance [CIS - Debian Linux 7/8 - 7.3.2 Disable IPv6 Redirect Acceptance] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv6.conf.all.accept_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv6.conf.all.accept_redirects=0; f:/etc/sysctl.conf -> !r:^# && r:net.ipv6.conf.default.accept_redirects=1; f:/etc/sysctl.conf -> !r:^net.ipv6.conf.default.accept_redirects=0; # # #7.3.3 Disable IPv6 [CIS - Debian Linux 7/8 - 7.3.3 Disable IPv6] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/sysctl.conf -> !r:^# && r:net.ipv6.conf.all.disable_ipv6=0; f:/etc/sysctl.conf -> !r:^net.ipv6.conf.all.disable_ipv6=1; f:/etc/sysctl.conf -> !r:^# && r:net.ipv6.conf.default.disable_ipv6=0; f:/etc/sysctl.conf -> !r:^net.ipv6.conf.default.disable_ipv6=1; f:/etc/sysctl.conf -> !r:^# && r:net.ipv6.conf.lo.disable_ipv6=0; f:/etc/sysctl.conf -> !r:^net.ipv6.conf.lo.disable_ipv6=1; # # #7.4.2 Create /etc/hosts.allow [CIS - Debian Linux 7/8 - 7.4.2 Create /etc/hosts.allow] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/hosts.allow; f:/etc/hosts.allow -> !r:^ALL:\.*; # # #7.4.4 Create /etc/hosts.deny [CIS - Debian Linux 7/8 - 7.4.4 Create /etc/hosts.deny] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/hosts.deny; f:/etc/hosts.deny -> !r:^ALL:\s*ALL; # # #7.5.1 Disable DCCP [CIS - Debian Linux 7/8 - 7.5.1 Disable DCCP] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/modprobe.d/CIS.conf; f:/etc/modprobe.d/CIS.conf -> !r:^install dccp /bin/true; # # #7.5.2 Disable SCTP [CIS - Debian Linux 7/8 - 7.5.2 Disable SCTP] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/modprobe.d/CIS.conf; f:/etc/modprobe.d/CIS.conf -> !r:^install sctp /bin/true; # # #7.5.3 Disable RDS [CIS - Debian Linux 7/8 - 7.5.3 Disable RDS] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/modprobe.d/CIS.conf; f:/etc/modprobe.d/CIS.conf -> !r:^install rds /bin/true; # # #7.5.4 Disable TIPC [CIS - Debian Linux 7/8 - 7.5.4 Disable TIPC] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/modprobe.d/CIS.conf; f:/etc/modprobe.d/CIS.conf -> !r:^install tipc /bin/true; # # #7.7 Ensure Firewall is active (RunLevel 2, 3, 4, 5; Priority 01) [CIS - Debian Linux 7/8 - 7.7 Ensure Firewall is active (RunLevel 2, 3, 4, 5; Priority 01)] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/rc2.d/S01iptables-persistent; f:!/etc/rc3.d/S01iptables-persistent; f:!/etc/rc4.d/S01iptables-persistent; f:!/etc/rc5.d/S01iptables-persistent; # # #8.2.2 Ensure the rsyslog Service is activated (RunLevel 2, 3, 4, 5; Priority 01) [CIS - Debian Linux 7/8 - 8.2.2 Ensure the rsyslog Service is activated (RunLevel 2, 3, 4, 5; Priority 01)] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/rc2.d/S01rsyslog; f:!/etc/rc3.d/S01rsyslog; f:!/etc/rc4.d/S01rsyslog; f:!/etc/rc5.d/S01rsyslog; # # #8.2.3 Configure /etc/rsyslog.conf [CIS - Debian Linux 7/8 - 8.2.3 Configure /etc/rsyslog.conf] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:$rsyslog_files -> !r:^*.emerg\s*\t*\s*\S; f:$rsyslog_files -> !r:^mail.*\s*\t*\s*\S; f:$rsyslog_files -> !r:^mail.info\s*\t*\s*\S; f:$rsyslog_files -> !r:^mail.warning\s*\t*\s*\S; f:$rsyslog_files -> !r:^mail.err\s*\t*\s*\S; f:$rsyslog_files -> !r:^news.crit\s*\t*\s*\S; f:$rsyslog_files -> !r:^news.err\s*\t*\s*\S; f:$rsyslog_files -> !r:^news.notice\s*\t*\s*\S; f:$rsyslog_files -> !r:^*.=warning;*.=err\s*\t*\s*\S; f:$rsyslog_files -> !r:^*.crit\s*\t*\s*\S; f:$rsyslog_files -> !r:^*.*;mail.none;news.none\s*\t*\s*\S; f:$rsyslog_files -> !r:^local0,local1.*\s*\t*\s*\S; f:$rsyslog_files -> !r:^local2,local3.*\s*\t*\s*\S; f:$rsyslog_files -> !r:^local4,local5.*\s*\t*\s*\S; f:$rsyslog_files -> !r:^local6,local7.*\s*\t*\s*\S; # # #8.2.5 Configure rsyslog to Send Logs to a Remote Log Host [CIS - Debian Linux 7/8 - 8.2.5 Configure rsyslog to Send Logs to a Remote Log Host] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/rsyslog.conf -> !r:^*.* @@\w+.\w+.\w+; # # #8.2.6 Accept Remote rsyslog Messages Only on Designated Log Hosts [CIS - Debian Linux 7/8 - 8.2.6 Accept Remote rsyslog Messages Only on Designated Log Hosts] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:$rsyslog_files -> !r:^\$ModLoad imtcp.so; f:$rsyslog_files -> !r:^\$InputTCPServerRun 514; # # #8.4 Configure logrotate [CIS - Debian Linux 7/8 - 8.4 Configure logrotate] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/logrotate.d/rsyslog; f:/etc/logrotate.d/rsyslog -> !r:\S+; # # #9.1.1 Enable cron Daemon (RunLevel 2, 3, 4, 5; Priority 15) [CIS - Debian Linux 7/8 - 9.1.1 Enable cron Daemon (RunLevel 2, 3, 4, 5; Priority 15)] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/rc2.d/S15anacron; f:!/etc/rc2.d/S15cron; f:!/etc/rc3.d/S15anacron; f:!/etc/rc3.d/S15cron; f:!/etc/rc4.d/S15anacron; f:!/etc/rc4.d/S15cron; f:!/etc/rc5.d/S15anacron; f:!/etc/rc5.d/S15cron; # # #9.1.8 Restrict at/cron to Authorized Users [CIS - Debian Linux 7/8 - 9.1.8 Restrict at/cron to Authorized Users] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/cron.allow; f:!/etc/at.allow; # # #9.2.1 Set Password Creation Requirement Parameters Using pam_cracklib [CIS - Debian Linux 7/8 - 9.2.1 Set Password Creation Requirement Parameters Using pam_cracklib] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/pam.d/common-password -> !r:password required pam_cracklib.so retry=\d minlen=\d\d+ dcredit=-\d+ ucredit=-\d+ ocredit=-\d+ lcredit=-\d+; # # #9.2.2 Set Lockout for Failed Password Attempts [CIS - Debian Linux 7/8 - 9.2.2 Set Lockout for Failed Password Attempts] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/pam.d/login -> !r:auth required pam_tally2.so onerr=fail audit silent deny=\d unlock_time=\d\d\d+; # # #9.2.3 Limit Password Reuse [CIS - Debian Linux 7/8 - 9.2.3 Limit Password Reuse] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/pam.d/common-password -> !r:password [success=1 default=ignore] pam_unix.so obscure sha512 remember=\d; # # #9.3.1 Set SSH Protocol to 2 [CIS - Debian Linux 7/8 - 9.3.1 Set SSH Protocol to 2] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^# && r:protocol 1; f:/etc/ssh/sshd_config -> !r:^protocol 2$; # # #9.3.2 Set LogLevel to INFO [CIS - Debian Linux 7/8 - 9.3.2 Set LogLevel to INFO] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^LogLevel\s+INFO; # # #9.3.4 Disable SSH X11 Forwarding [CIS - Debian Linux 7/8 - 9.3.4 Disable SSH X11 Forwarding] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^X11Forwarding\s+no; # # #9.3.5 Set SSH MaxAuthTries to 4 or Less [CIS - Debian Linux 7/8 - 9.3.5 Set SSH MaxAuthTries to 4 or Less] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^MaxAuthTries\s+\d; f:/etc/ssh/sshd_config -> r:^MaxAuthTries\s+\d\d+; f:/etc/ssh/sshd_config -> r:^MaxAuthTries\s+5; f:/etc/ssh/sshd_config -> r:^MaxAuthTries\s+6; f:/etc/ssh/sshd_config -> r:^MaxAuthTries\s+7; f:/etc/ssh/sshd_config -> r:^MaxAuthTries\s+8; f:/etc/ssh/sshd_config -> r:^MaxAuthTries\s+9; # # #9.3.6 Set SSH IgnoreRhosts to Yes [CIS - Debian Linux 7/8 - 9.3.6 Set SSH IgnoreRhosts to Yes] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^IgnoreRhosts\s+yes; # # #9.3.7 Set SSH HostbasedAuthentication to No [CIS - Debian Linux 7/8 - 9.3.7 Set SSH HostbasedAuthentication to No] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^HostbasedAuthentication\s+no; # # #9.3.8 Disable SSH Root Login [CIS - Debian Linux 7/8 - 9.3.8 Disable SSH Root Login] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^# && r:PermitRootLogin\s+yes; f:/etc/ssh/sshd_config -> !r:^PermitRootLogin\s+no; # # #9.3.9 Set SSH PermitEmptyPasswords to No [CIS - Debian Linux 7/8 - 9.3.9 Set SSH PermitEmptyPasswords to No] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^# && r:PermitEmptyPasswords\s+yes; f:/etc/ssh/sshd_config -> !r:^PermitEmptyPasswords\s+no; # # #9.3.10 Do Not Allow Users to Set Environment Options [CIS - Debian Linux 7/8 - 9.3.10 Do Not Allow Users to Set Environment Options] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^# && r:PermitUserEnvironment\s+yes; f:/etc/ssh/sshd_config -> !r:^PermitUserEnvironment\s+no; # # #9.3.12 Set Idle Timeout Interval for User Login [CIS - Debian Linux 7/8 - 9.3.12 Set Idle Timeout Interval for User Login] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^ClientAliveInterval\s+\d+; f:/etc/ssh/sshd_config -> !r:^ClientAliveCountMax\s+\d; # # #9.3.13 Limit Access via SSH [CIS - Debian Linux 7/8 - 9.3.13 Limit Access via SSH] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^AllowUsers\s+\w+|^AllowGroups\s+\w+|^DenyUsers\s+\w+|^DenyGroups\s+\w+; # # #9.3.14 Set SSH Banner [CIS - Debian Linux 7/8 - 9.3.14 Set SSH Banner] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/ssh/sshd_config -> !r:^Banner\s+\S+; # # #9.5 Restrict Access to the su Command [CIS - Debian Linux 7/8 - 9.5 Restrict Access to the su Command] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/pam.d/su -> !r:auth required pam_wheel.so use_uid; # # #10.1.1 Set Password Expiration Days [CIS - Debian Linux 7/8 - 10.1.1 Set Password Expiration Days] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/login.defs -> !r:^PASS_MAX_DAYS\s+\d+; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+\d\d\d+; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+91; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+92; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+93; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+94; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+95; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+96; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+97; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+98; f:/etc/login.defs -> !r:^# && r:PASS_MAX_DAYS\s+99; # # #10.1.2 Set Password Change Minimum Number of Days [CIS - Debian Linux 7/8 - 10.1.2 Set Password Change Minimum Number of Days] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/login.defs -> !r:^PASS_MIN_DAYS\s+\d+; f:/etc/login.defs -> !r:^# && r:PASS_MIN_DAYS\s+1; f:/etc/login.defs -> !r:^# && r:PASS_MIN_DAYS\s+2; f:/etc/login.defs -> !r:^# && r:PASS_MIN_DAYS\s+3; f:/etc/login.defs -> !r:^# && r:PASS_MIN_DAYS\s+4; f:/etc/login.defs -> !r:^# && r:PASS_MIN_DAYS\s+5; f:/etc/login.defs -> !r:^# && r:PASS_MIN_DAYS\s+6; # # #10.1.3 Set Password Expiring Warning Days [CIS - Debian Linux 7/8 - 10.1.3 Set Password Expiring Warning Days] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/login.defs -> !r:^PASS_WARN_DAYS\s+\d+; f:/etc/login.defs -> !r:^# && r:PASS_WARN_DAYS\s+1; f:/etc/login.defs -> !r:^# && r:PASS_WARN_DAYS\s+2; f:/etc/login.defs -> !r:^# && r:PASS_WARN_DAYS\s+3; f:/etc/login.defs -> !r:^# && r:PASS_WARN_DAYS\s+4; f:/etc/login.defs -> !r:^# && r:PASS_WARN_DAYS\s+5; f:/etc/login.defs -> !r:^# && r:PASS_WARN_DAYS\s+6; # # #10.3 Set Default Group for root Account [CIS - Debian Linux 7/8 - 10.3 Set Default Group for root Account] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/passwd -> !r:^root:\w+:\w+:0:; # # #10.4 Set Default umask for Users [CIS - Debian Linux 7/8 - 10.4 Set Default umask for Users] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:$profiledfiles -> !r:^umask 077; f:/etc/bash.bashrc -> !r:^umask 077; # # #10.5 Lock Inactive User Accounts [CIS - Debian Linux 7/8 - 10.5 Lock Inactive User Accounts] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/default/useradd -> !r:^INACTIVE=\d\d*; # # #11.1 Set Warning Banner for Standard Login Services [CIS - Debian Linux 7/8 - 11.1 Set Warning Banner for Standard Login Services] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:!/etc/motd; f:!/etc/issue; f:!/etc/issue.net; # # #11.2 Remove OS Information from Login Warning Banners [CIS - Debian Linux 7/8 - 11.2 Remove OS Information from Login Warning Banners] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/motd -> r:debian|gnu|linux; # # #13.1 Ensure Password Fields are Not Empty [CIS - Debian Linux 7/8 - 13.1 Ensure Password Fields are Not Empty] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/shadow -> r:^\w+::; # # #13.2 Verify No Legacy "+" Entries Exist in /etc/passwd File [CIS - Debian Linux 7/8 - 13.2 Verify No Legacy "+" Entries Exist in /etc/passwd File] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/passwd -> !r:^# && r:^+:; # # #13.3 Verify No Legacy "+" Entries Exist in /etc/shadow File [CIS - Debian Linux 7/8 - 13.3 Verify No Legacy "+" Entries Exist in /etc/shadow File] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/shadow -> !r:^# && r:^+:; # # #13.4 Verify No Legacy "+" Entries Exist in /etc/group File [CIS - Debian Linux 7/8 - 13.4 Verify No Legacy "+" Entries Exist in /etc/group File] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/group -> !r:^# && r:^+:; # # #13.5 Verify No UID 0 Accounts Exist Other Than root [CIS - Debian Linux 7/8 - 13.5 Verify No UID 0 Accounts Exist Other Than root] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/passwd -> !r:^# && !r:^root: && r:^\w+:\w+:0:; # # #13.10 Check for Presence of User .rhosts Files [CIS - Debian Linux 7/8 - 13.10 Check for Presence of User .rhosts Files] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$home_dirs -> r:^.rhosts$; # # #13.18 Check for Presence of User .netrc Files [CIS - Debian Linux 7/8 - 13.18 Check for Presence of User .netrc Files] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$home_dirs -> r:^.netrc$; # # #13.19 Check for Presence of User .forward Files [CIS - Debian Linux 7/8 - 13.19 Check for Presence of User .forward Files] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] d:$home_dirs -> r:^.forward$; # # #13.20 Ensure shadow group is empty [CIS - Debian Linux 7/8 - 13.20 Ensure shadow group is empty] [any] [https://workbench.cisecurity.org/benchmarks/80, https://workbench.cisecurity.org/benchmarks/81] f:/etc/group -> !r:^# && r:shadow:\w*:\w*:\S+;