ansible-ops-management/templates/etc/audit/rules.d/collection.rules.j2
2023-08-14 00:40:04 -07:00

102 lines
5.6 KiB
Django/Jinja

# Ignore CWD logs
-a exclude,always -F msgtype=CWD
-a always,exit -F arch=b64 -S adjtimex,settimeofday,clock_settime -k time-change
-a always,exit -F arch=b32 -S adjtimex,settimeofday,clock_settime -k time-change
-w /etc/localtime -p wa -k time-change
## Records when events occur that modify user and group passwords and ID's
{% for y in audit_identity_list %}
-w {{ y }} -p wa -k identity
{% endfor %}
## Records changes to network environment files or system calls
-a always,exit -F arch=b64 -S sethostname,setdomainname -k system-locale
-a always,exit -F arch=b32 -S sethostname,setdomainname -k system-locale
-w /etc/issue -p wa -k system-locale
-w /etc/issue.net -p wa -k system-locale
-w /etc/hosts -p wa -k system-locale
-w /etc/hostname -p wa -k system-locale
-w /etc/sysconfig/network -p wa -k system-locale
-a always,exit -F dir=/etc/NetworkManager/ -F perm=wa -F key=system-locale
## Monitors SELinux Mandatory Access Controls
-w /etc/selinux/ -p wa -k MAC-policy
-w /usr/share/selinux/ -p wa -k MAC-policy
## Monitors login/logout/failed login events
# To be fair, these are normally logged in /var/log/secure
{% for y in audit_logins %}
-w {{ y }} -p wa -k logins
{% endfor %}
## Monitor session initiation events
## This will track file changes within sessions
{% for y in audit_session %}
-w {{ y }} -p wa -k session
{% endfor %}
## Monitor changes for files for UID's above {{ audit_auid }}
# You can take this out if you are on a non-PCI system
-a always,exit -F arch=b64 -S chmod,fchmod,fchmodat -F auid>={{ audit_auid }} -F auid!=4294967295 -k perm_mod
-a always,exit -F arch=b32 -S chmod,fchmod,fchmodat -F auid>={{ audit_auid }} -F auid!=4294967295 -k perm_mod
-a always,exit -F arch=b64 -S chown,fchown,fchownat,lchown -F auid>={{ audit_auid }} -F auid!=4294967295 -k perm_mod
-a always,exit -F arch=b32 -S chown,fchown,fchownat,lchown -F auid>={{ audit_auid }} -F auid!=4294967295 -k perm_mod
-a always,exit -F arch=b64 -S setxattr,lsetxattr,fsetxattr,removexattr,lremovexattr,fremovexattr -F auid>={{ audit_auid }} -F auid!=4294967295 -k perm_mod
-a always,exit -F arch=b32 -S setxattr,lsetxattr,fsetxattr,removexattr,lremovexattr,fremovexattr -F auid>={{ audit_auid }} -F auid!=4294967295 -k perm_mod
-a always,exit -F arch=b32 -S creat,open,openat,open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>={{ audit_auid }} -F auid!=4294967295 -k access
-a always,exit -F arch=b64 -S creat,open,openat,open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>={{ audit_auid }} -F auid!=4294967295 -k access
-a always,exit -F arch=b32 -S creat,open,openat,open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>={{ audit_auid }} -F auid!=4294967295 -k access
-a always,exit -F arch=b64 -S creat,open,openat,open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>={{ audit_auid }} -F auid!=4294967295 -k access
## Monitors mounting events for users
# You can probably take these out
-a always,exit -F arch=b64 -S mount -F auid>={{ audit_auid }} -F auid!=4294967295 -k mounts
-a always,exit -F arch=b32 -S mount -F auid>={{ audit_auid }} -F auid!=4294967295 -k mounts
## Collect file deletion events by a user
-a always,exit -F arch=b64 -S rmdir -S unlink -S unlinkat -S rename -S renameat -F auid>={{ audit_auid }} -F auid!=4294967295 -k delete
-a always,exit -F arch=b32 -S rmdir -S unlink -S unlinkat -S rename -S renameat -F auid>={{ audit_auid }} -F auid!=4294967295 -k delete
## Collect changes to System Administration Scope
# Note: This only records /etc/sudoers and doesn't watch /etc/sudoers.d
-w /etc/sudoers -p wa -k scope
-w /etc/sudoers.d -p wa -k scope
## Collect System Administrator Actions (sudolog)
-w /var/log/sudo.log -p wa -k actions
## Collect Kernel Module Loading and Unloading
# These are covered by the following two lines
#-w /sbin/kmod -p x -k modules
#-w /sbin/insmod -p x -k modules
#-w /sbin/rmmod -p x -k modules
#-w /sbin/modprobe -p x -k modules
-a always,exit -F arch=b64 -S init_module,finit_module,delete_module,create_module,query_module -k modules
-a always,exit -F arch=b32 -S init_module,finit_module,delete_module,create_module,query_module -k modules
{% for y in audit_suid_list %}
-a always,exit -F path={{ y }} -F perm=x -F auid>={{ audit_auid }} -F auid!=4294967295 -k privileged
{% endfor %}
# Monitor specific calls
-a always,exit -S all -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=-1 -F key=perm_chng
-a always,exit -S all -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=-1 -F key=perm_chng
-a always,exit -S all -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=-1 -F key=perm_chng
-a always,exit -S all -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=usermod
# Is someone messing with our audit logs?
-w /var/log/audit/ -k audit-logs
-a always,exit -F dir=/var/log/audit/ -F perm=r -F auid>=1000 -F auid!=4294967295 -F key=audit-logs
-a always,exit -F path=/usr/sbin/ausearch -F perm=x -F key=audit-logs
-a always,exit -F path=/usr/sbin/aureport -F perm=x -F key=audit-logs
-a always,exit -F path=/usr/sbin/aulast -F perm=x -F key=audit-logs
-a always,exit -F path=/usr/sbin/aulastlogin -F perm=x -F key=audit-logs
-a always,exit -F path=/usr/sbin/auvirt -F perm=x -F key=audit-logs
# Privilege elevation
-a always,exit -F arch=b64 -S setuid -Fa0=0 -F exe={{ bin_su }} -F key=privileged
-a always,exit -F arch=b32 -S setuid -Fa0=0 -F exe={{ bin_su }} -F key=privileged
-a always,exit -F arch=b64 -S setresuid -F a0=0 -F exe={{ bin_sudo }} -F key=privileged
-a always,exit -F arch=b32 -S setresuid -F a0=0 -F exe={{ bin_sudo }} -F key=privileged
-a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -F key=privileged
-a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -F key=privileged
-e 2