mirror of https://github.com/trailofbits/algo
auditd
Evgeniy Ivanov
8 years ago
parent
5dcb73f7c1
commit
4bd2cd2eea
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*.emerg :omusrmsg:*
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mail.* -/var/log/mail
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mail.info -/var/log/mail.info
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mail.warning -/var/log/mail.warn
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mail.err /var/log/mail.err
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news.crit -/var/log/news/news.crit
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news.err -/var/log/news/news.err
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news.notice -/var/log/news/news.notice
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*.=warning;*.=err -/var/log/warn
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*.crit /var/log/warn
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*.*;mail.none;news.none -/var/log/messages
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local0,local1.* -/var/log/localmessages
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local2,local3.* -/var/log/localmessages
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local4,local5.* -/var/log/localmessages
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local6,local7.* -/var/log/localmessages
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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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#
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# This file controls the configuration of the audit daemon
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#
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log_file = /var/log/audit/audit.log
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log_format = RAW
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log_group = root
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priority_boost = 4
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flush = INCREMENTAL
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freq = 20
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num_logs = 5
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disp_qos = lossy
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dispatcher = /sbin/audispd
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name_format = NONE
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##name = mydomain
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max_log_file = 10
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max_log_file_action = keep_logs
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space_left = 75
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space_left_action = email
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action_mail_acct = {{ auditd_action_mail_acct }}
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admin_space_left = 50
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admin_space_left_action = email
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disk_full_action = SUSPEND
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disk_error_action = SUSPEND
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##tcp_listen_port =
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tcp_listen_queue = 5
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tcp_max_per_addr = 1
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##tcp_client_ports = 1024-65535
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tcp_client_max_idle = 0
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enable_krb5 = no
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krb5_principal = auditd
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##krb5_key_file = /etc/audit/audit.key
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# /etc/rsyslog.conf Configuration file for rsyslog.
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#
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# For more information see
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# /usr/share/doc/rsyslog-doc/html/rsyslog_conf.html
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#
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# Default logging rules can be found in /etc/rsyslog.d/50-default.conf
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#
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#################
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#### MODULES ####
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#################
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module(load="imuxsock") # provides support for local system logging
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module(load="imklog") # provides kernel logging support
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#module(load="immark") # provides --MARK-- message capability
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# provides UDP syslog reception
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#module(load="imudp")
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#input(type="imudp" port="514")
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# provides TCP syslog reception
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#module(load="imtcp")
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#input(type="imtcp" port="514")
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# Enable non-kernel facility klog messages
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$KLogPermitNonKernelFacility on
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###########################
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#### GLOBAL DIRECTIVES ####
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###########################
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#
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# Use traditional timestamp format.
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# To enable high precision timestamps, comment out the following line.
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#
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$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
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# Filter duplicated messages
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$RepeatedMsgReduction on
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#
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# Set the default permissions for all log files.
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#
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$FileOwner syslog
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$FileGroup adm
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$FileCreateMode 0640
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$DirCreateMode 0755
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$Umask 0022
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$PrivDropToUser syslog
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$PrivDropToGroup syslog
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#
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# Where to place spool and state files
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#
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$WorkDirectory /var/spool/rsyslog
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#
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# Include all config files in /etc/rsyslog.d/
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#
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$IncludeConfig /etc/rsyslog.d/*.conf
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