#!/bin/bash # # Security level implementation... # Writen by Vandoorselaere Yoann # if [[ -f /usr/share/msec/lib.sh ]]; then . /usr/share/msec/lib.sh else echo "Can't find /usr/share/msec/lib.sh, exiting." exit 1 fi # login as root on console granted... echo "Login as root is granted :" AddRules "tty1" /etc/securetty quiet AddRules "tty2" /etc/securetty quiet AddRules "tty3" /etc/securetty quiet AddRules "tty4" /etc/securetty quiet AddRules "tty5" /etc/securetty quiet AddRules "tty6" /etc/securetty AddRules "vc/1" /etc/securetty quiet AddRules "vc/2" /etc/securetty quiet AddRules "vc/3" /etc/securetty quiet AddRules "vc/4" /etc/securetty quiet AddRules "vc/5" /etc/securetty quiet AddRules "vc/6" /etc/securetty # Security check echo "Updating file check variable : " echo -e "\t- Check security : no." AddRules "CHECK_SECURITY=no" /etc/security/msec/security.conf quiet echo -e "\t- Check important permissions : no." AddRules "CHECK_PERMS=no" /etc/security/msec/security.conf quiet echo -e "\t- Check suid root file : no." AddRules "CHECK_SUID_ROOT=no" /etc/security/msec/security.conf quiet echo -e "\t- Check suid root file integrity (backdoor check) : no." AddRules "CHECK_SUID_MD5=no" /etc/security/msec/security.conf quiet echo -e "\t- Check suid group file : no." AddRules "CHECK_SUID_GROUP=no" /etc/security/msec/security.conf quiet echo -e "\t- Check world writable file : no." AddRules "CHECK_WRITEABLE=no" /etc/security/msec/security.conf quiet echo -e "\t- Check unowned file : no." AddRules "CHECK_UNOWNED=no" /etc/security/msec/security.conf quiet echo -e "\t- Check promiscuous mode : no." AddRules "CHECK_PROMISC=no" /etc/security/msec/security.conf quiet echo -e "\t- Check listening port : no." AddRules "CHECK_OPEN_PORT=no" /etc/security/msec/security.conf quiet echo -e "\t- Check passwd file integrity : no." AddRules "CHECK_PASSWD=no" /etc/security/msec/security.conf quiet echo -e "\t- Check shadow file integrity : no." AddRules "CHECK_SHADOW=no" /etc/security/msec/security.conf quiet echo -e "\t- Security warning on tty : no." AddRules "TTY_WARN=no" /etc/security/msec/security.conf quiet echo -e "\t- Security warning by mail : no." AddRules "MAIL_WARN=no" /etc/security/msec/security.conf quiet echo -e "\t- Security warning in syslog : no." AddRules "SYSLOG_WARN=no" /etc/security/msec/security.conf # end security check # /etc/profile.d/msec.{sh,csh} export SECURE_LEVEL=0 echo "Setting secure level variable to 0 :" AddRules "export SECURE_LEVEL=0" /etc/profile.d/msec.sh AddRules "setenv SECURE_LEVEL 0" /etc/profile.d/msec.csh echo "Setting umask to 022 (u=rw,g=r,o=r) :" AddRules "umask 022" /etc/profile.d/msec.sh AddRules "umask 022" /etc/profile.d/msec.csh echo "Adding \"non secure\" PATH variable :" if ! echo ${PATH} |grep -q /usr/X11R6/bin ; then AddRules "export PATH=\$PATH:/usr/X11R6/bin" /etc/profile.d/msec.sh quiet AddRules "setenv PATH \"\${PATH}:/usr/X11R6/bin\"" /etc/profile.d/msec.csh quiet fi if ! echo ${PATH} |grep -q /usr/games ; then AddRules "export PATH=\$PATH:/usr/games" /etc/profile.d/msec.sh quiet AddRules "setenv PATH \"\${PATH}:/usr/games\"" /etc/profile.d/msec.csh quiet fi AddRules "export PATH=\$PATH:." /etc/profile.d/msec.sh quiet AddRules "setenv PATH \"\${PATH}:.\"" /etc/profile.d/msec.csh quiet # Xserver echo "Allowing users to connect X server from everywhere :" AddBegRules "/usr/X11R6/bin/xhost +" /etc/X11/xinit.d/msec quiet # Group echo "Adding system users to specific groups :" /usr/share/msec/grpuser.sh --refresh echo -e "done.\n" AllowAutologin # Boot on a shell / authorize ctrl-alt-del AllowReboot AllowUserList RootSshLogin 0