#!/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 : yes." AddRules "CHECK_SECURITY=yes" /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=1 echo "Setting secure level variable to 1 :" AddRules "export SECURE_LEVEL=1" /etc/profile.d/msec.sh AddRules "setenv SECURE_LEVEL 1" /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 :" AddRules "if ! echo \${PATH} |grep -q /usr/X11R6/bin ; then\n\texport PATH=\$PATH:/usr/X11R6/bin\nfi" /etc/profile.d/msec.sh quiet AddRules "if ! { (echo "\${PATH}" | grep -q /usr/X11R6/bin) } then\n\tsetenv PATH \"\${PATH}:/usr /X11R6/bin\"\nendif" /etc/profile.d/msec.csh quiet AddRules "if ! echo \${PATH} |grep -q /usr/games ; then\n\texport PATH=\$PATH:/usr/games\nfi" /et c/profile.d/msec.sh quiet AddRules "if ! { (echo "\${PATH}" | grep -q /usr/games) } then\n\tsetenv PATH \"\${PATH}:/usr/games\"\nendif" /etc/profile.d/msec.csh quiet AddRules "if ! echo \${PATH} |grep -q :. ; then\n\texport PATH=\$PATH:.\nfi" /etc/profile.d/msec.sh quiet AddRules "if ! { (echo "\${PATH}" | grep -q :.) } then\n\tsetenv PATH \"\${PATH}:.\"\nendif" /etc /profile.d/msec.csh quiet # Xserver echo "Allowing users to connect X server from localhost :" AddBegRules "/usr/X11R6/bin/xhost + localhost" /etc/X11/xinit.d/msec # Group echo "Adding system users to specific groups :" /usr/share/msec/grpuser.sh --refresh grpconv echo -e "done.\n" AllowAutologin # Do not boot on a shell AllowReboot AllowUserList RootSshLogin 1