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102 lines
4.4 KiB
Plaintext
102 lines
4.4 KiB
Plaintext
8 years ago
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# This file contains the auditctl rules that are loaded
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# whenever the audit daemon is started via the initscripts.
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# The rules are simply the parameters that would be passed
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# to auditctl.
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#
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# First rule - delete all
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-D
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# Increase the buffers to survive stress events.
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# Make this bigger for busy systems
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-b 320
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# Feel free to add below this line. See auditctl man page
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# Record Events That Modify Date and Time Information
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{% if ansible_architecture == "x86_64" %}
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-a always,exit -F arch=b64 -S clock_settime -k time-change
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-a always,exit -F arch=b64 -S adjtimex -S settimeofday -k time-change
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{% endif %}
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-a always,exit -F arch=b32 -S clock_settime -k time-change
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-a always,exit -F arch=b32 -S adjtimex -S settimeofday -S stime -k time-change
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-w /etc/localtime -p wa -k time-change
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# Record Events That Modify User/Group Information
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-w /etc/group -p wa -k identity
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-w /etc/passwd -p wa -k identity
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-w /etc/gshadow -p wa -k identity
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-w /etc/shadow -p wa -k identity
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-w /etc/security/opasswd -p wa -k identity
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# Record Events That Modify the System's Network Environment
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{% if ansible_architecture == "x86_64" %}
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-a exit,always -F arch=b64 -S sethostname -S setdomainname -k system-locale
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{% endif %}
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-a exit,always -F arch=b32 -S sethostname -S setdomainname -k system-locale
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-w /etc/issue -p wa -k system-locale
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-w /etc/issue.net -p wa -k system-locale
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-w /etc/hosts -p wa -k system-locale
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-w /etc/network/interfaces -p wa -k system-locale
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# Collect Login and Logout Events
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-w /var/log/faillog -p wa -k logins
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-w /var/log/lastlog -p wa -k logins
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-w /var/log/tallylog -p wa -k logins
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# Collect Session Initiation Information
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-w /var/run/utmp -p wa -k session
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-w /var/log/wtmp -p wa -k session
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-w /var/log/btmp -p wa -k session
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# Collect Discretionary Access Control Permission Modification Events
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{% if ansible_architecture == "x86_64" %}
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-a always,exit -F arch=b64 -S chmod -S fchmod -S fchmodat -F auid>=500 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b64 -S chown -S fchown -S fchownat -S lchown -F auid>=500 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b64 -S setxattr -S lsetxattr -S fsetxattr -S removexattr -S lremovexattr -S fremovexattr -F auid>=500 -F auid!=4294967295 -k perm_mod
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{% endif %}
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-a always,exit -F arch=b32 -S chmod -S fchmod -S fchmodat -F auid>=500 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b32 -S chown -S fchown -S fchownat -S lchown -F auid>=500 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b32 -S setxattr -S lsetxattr -S fsetxattr -S removexattr -S lremovexattr -S fremovexattr -F auid>=500 -F auid!=4294967295 -k perm_mod
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# Collect Unsuccessful Unauthorized Access Attempts to Files
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{% if ansible_architecture == "x86_64" %}
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-a always,exit -F arch=b64 -S creat -S open -S openat -S truncate -F exit=-EACCES -F auid>=500 -F auid!=4294967295 -k access
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-a always,exit -F arch=b64 -S creat -S open -S openat -S truncate -F exit=-EPERM -F auid>=500 -F auid!=4294967295 -k access
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{% endif %}
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-a always,exit -F arch=b32 -S creat -S open -S openat -S truncate -S ftruncate -F exit=-EACCES -F auid>=500 -F auid!=4294967295 -k access
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-a always,exit -F arch=b32 -S creat -S open -S openat -S truncate -S ftruncate -F exit=-EPERM -F auid>=500 -F auid!=4294967295 -k access
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# Collect Use of Privileged Commands
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{% if privileged_programs is defined and privileged_programs.stdout_lines|length > 0 %}
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{{ privileged_programs.stdout }}
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{% endif %}
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# Collect Successful File System Mounts
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{% if ansible_architecture == "x86_64" %}
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-a always,exit -F arch=b64 -S mount -F auid>=500 -F auid!=4294967295 -k mounts
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{% endif %}
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-a always,exit -F arch=b32 -S mount -F auid>=500 -F auid!=4294967295 -k mounts
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# Collect File Deletion Events by User
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{% if ansible_architecture == "x86_64" %}
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-a always,exit -F arch=b64 -S unlink -S unlinkat -S rename -S renameat -F auid>=500 -F auid!=4294967295 -k delete
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{% endif %}
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-a always,exit -F arch=b32 -S unlink -S unlinkat -S rename -S renameat -F auid>=500 -F auid!=4294967295 -k delete
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# Collect Changes to System Administration Scope
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-w /etc/sudoers -p wa -k scope
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# Collect System Administrator Actions (sudolog)
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-w /var/log/sudo.log -p wa -k actions
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# Collect Kernel Module Loading and Unloading
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{% if ansible_architecture == "x86_64" %}
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-a always,exit -F arch=b64 -S init_module -S delete_module -k modules
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{% endif %}
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-a always,exit -F arch=b32 -S init_module -S delete_module -k modules
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-w /sbin/insmod -p x -k modules
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-w /sbin/rmmod -p x -k modules
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-w /sbin/modprobe -p x -k modules
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-e 2
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