##
## This file contains the a sample audit configuration intended to
## meet the NISPOM Chapter 8 rules.
##
## This file should be saved as /etc/audit/audit.rules.
##
## For audit 1.6.5 and higher
##

## Remove any existing rules
-D

## Increase buffer size to handle the increased number of messages.
## Feel free to increase this if the machine panic's
-b 8192

## Set failure mode to panic
-f 2

## Make the loginuid immutable. This prevents tampering with the auid.
--loginuid-immutable

## Audit 1, 1(a) Enough information to determine the date and time of
## action (e.g., common network time), the system locale of the action,
## the system entity that initiated or completed the action, the resources
## involved, and the action involved.

## Things that could affect time
-a always,exit -F arch=b32 -S adjtimex,settimeofday,stime -F key=time-change
-a always,exit -F arch=b64 -S adjtimex,settimeofday -F key=time-change
-a always,exit -F arch=b32 -S clock_settime -F a0=0x0 -F key=time-change
-a always,exit -F arch=b64 -S clock_settime -F a0=0x0 -F key=time-change
# Introduced in 2.6.39, commented out because it can make false positives
#-a always,exit -F arch=b32 -S clock_adjtime -F key=time-change
#-a always,exit -F arch=b64 -S clock_adjtime -F key=time-change
-w /etc/localtime -p wa -k time-change

## Things that could affect system locale
-a always,exit -F arch=b32 -S sethostname,setdomainname -F key=system-locale
-a always,exit -F arch=b64 -S sethostname,setdomainname -F key=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/sysconfig/network -p wa -k system-locale
-a always,exit -F dir=/etc/NetworkManager/ -F perm=wa -F key=system-locale

## Audit 1, 1(b) Successful and unsuccessful logons and logoffs.
## This is covered by patches to login, gdm, and openssh
## Might also want to watch these files if needing extra information
#-w /var/log/tallylog -p wa -k logins
#-w /var/run/faillock/ -p wa -k logins
#-w /var/log/lastlog -p wa -k logins
#-w /var/log/btmp -p wa -k logins
#-w /var/run/utmp -p wa -k logins

## Audit 1, 1(c) Successful and unsuccessful accesses to
## security-relevant objects and directories, including
## creation, open, close, modification, and deletion.

## unsuccessful creation
-a always,exit -F arch=b32 -S creat,link,mknod,mkdir,symlink,mknodat,linkat,symlinkat -F exit=-EACCES -F key=creation
-a always,exit -F arch=b64 -S mkdir,creat,link,symlink,mknod,mknodat,linkat,symlinkat -F exit=-EACCES -F key=creation
-a always,exit -F arch=b32 -S link,mkdir,symlink,mkdirat -F exit=-EPERM -F key=creation
-a always,exit -F arch=b64 -S mkdir,link,symlink,mkdirat -F exit=-EPERM -F key=creation

## unsuccessful open
-a always,exit -F arch=b32 -S open,openat,open_by_handle_at -F exit=-EACCES -F key=open
-a always,exit -F arch=b64 -S open,openat,open_by_handle_at -F exit=-EACCES -F key=open
-a always,exit -F arch=b32 -S open,openat,open_by_handle_at -F exit=-EPERM -F key=open
-a always,exit -F arch=b64 -S open,openat,open_by_handle_at -F exit=-EPERM -F key=open

## unsuccessful close
-a always,exit -F arch=b32 -S close -F exit=-EIO -F key=close
-a always,exit -F arch=b64 -S close -F exit=-EIO -F key=close

## unsuccessful modifications
-a always,exit -F arch=b32 -S rename -S renameat -S truncate -S chmod -S setxattr -S lsetxattr -S removexattr -S lremovexattr -F exit=-EACCES -F key=mods
-a always,exit -F arch=b64 -S rename -S renameat -S truncate -S chmod -S setxattr -S lsetxattr -S removexattr -S lremovexattr -F exit=-EACCES -F key=mods
-a always,exit -F arch=b32 -S rename -S renameat -S truncate -S chmod -S setxattr -S lsetxattr -S removexattr -S lremovexattr -F exit=-EPERM -F key=mods
-a always,exit -F arch=b64 -S rename -S renameat -S truncate -S chmod -S setxattr -S lsetxattr -S removexattr -S lremovexattr -F exit=-EPERM -F key=mods

## unsuccessful deletion
-a always,exit -F arch=b32 -S unlink,rmdir,unlinkat -F exit=-EACCES -F key=delete
-a always,exit -F arch=b64 -S rmdir,unlink,unlinkat -F exit=-EACCES -F key=delete
-a always,exit -F arch=b32 -S unlink,rmdirunlinkat -F exit=-EPERM -F key=delete
-a always,exit -F arch=b64 -S rmdir,unlink,unlinkat -F exit=-EPERM -F key=delete

## Audit 1, 1(d) Changes in user authenticators.
## Covered by patches to libpam, passwd, and shadow-utils
## Might also want to watch these files for changes
-w /etc/group -p wa -k auth
-w /etc/passwd -p wa -k auth
-w /etc/gshadow -p wa -k auth
-w /etc/shadow -p wa -k auth
-w /etc/security/opasswd -p wa -k auth

## Audit 1, 1(e) The blocking or blacklisting of a user ID,
## terminal, or access port and the reason for the action.
## Covered by patches to pam_tally2 or pam_faillock and pam_limits

## Audit 1, 1(f) Denial of access resulting from an excessive
## number of unsuccessful logon attempts.
## Covered by patches to pam_tally2 or pam_faillock

## Audit 1, 2 Audit Trail Protection. The contents of audit trails
## shall be protected against unauthorized access, modification,
## or deletion.
## This should be covered by file permissions, but we can watch it
## to see any activity
-w /var/log/audit/ -k audit-logs

## Not specifically required by NISPOM; but common sense items
## Optional - could indicate someone trying to do something bad or
## just debugging
#-a always,exit -F arch=b32 -S ptrace -F key=tracing
#-a always,exit -F arch=b64 -S ptrace -F key=tracing
#-a always,exit -F arch=b32 -S ptrace -F a0=0x4 -F key=code-injection
#-a always,exit -F arch=b64 -S ptrace -F a0=0x4 -F key=code-injection
#-a always,exit -F arch=b32 -S ptrace -F a0=0x5 -F key=data-injection
#-a always,exit -F arch=b64 -S ptrace -F a0=0x5 -F key=data-injection
#-a always,exit -F arch=b32 -S ptrace -F a0=0x6 -F key=register-injection
#-a always,exit -F arch=b64 -S ptrace -F a0=0x6 -F key=register-injection

## Optional - might want to watch module insertion
#-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=b32 -S init_module,finit_module -F key=module-load
#-a always,exit -F arch=b64 -S init_module,finit_module -F key=module-load
#-a always,exit -F arch=b32 -S delete_module -F key=module-unload
#-a always,exit -F arch=b64 -S delete_module -F key=module-unload

## Optional - admin may be abusing power by looking in user's home dir
#-a always,exit -F dir=/home -F uid=0 -F auid>=1000 -F auid!=4294967295 -C auid!=obj_uid -F key=power-abuse

## Optional - log container creation
#-a always,exit -F arch=b32 -S clone -F a0&0x2080505856 -F key=container-create
#-a always,exit -F arch=b64 -S clone -F a0&0x2080505856 -F key=container-create

## Optional - watch for containers that may change their configuration
#-a always,exit -F arch=b32 -S unshare,setns -F key=container-config
#-a always,exit -F arch=b64 -S unshare,setns -F key=container-config

## Put your own watches after this point
# -w /your-file -p rwxa -k mykey

## Make the configuration immutable
#-e 2