nex snf level

1 files changed, 127 insertions, 0 deletions

diff --git a/init-sh/levelsnf.sh b/init-sh/levelsnf.sh
new file mode 100755
index 0000000..e86aba8
--- /dev/null
+++ b/init-sh/levelsnf.sh
@@ -0,0 +1,127 @@
+#!/bin/bash 
+
+
+#
+# Security level implementation...
+# Writen by Vandoorselaere Yoann <yoann@mandrakesoft.com>
+#
+
+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
+
+# Log in append only mode
+echo -e "Changing attribute of /var/log/* to append only...\n"
+
+# All events logged on tty12
+echo "Loging all messages on tty12 : "
+AddRules "*.* /dev/tty12" /etc/syslog.conf
+
+# Prevent all kind of connection except from localhost
+echo "Denying all kind of connection except localhost : "
+AddRules "ALL:ALL EXCEPT localhost:DENY" /etc/hosts.deny
+
+# Login as root on the console allowed :
+echo "Denying login as root (except on the console) :"
+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 : yes."
+    AddRules "CHECK_PERMS=yes" /etc/security/msec/security.conf         quiet    
+echo -e "\t- Check suid root file : yes."
+    AddRules "CHECK_SUID_ROOT=yes" /etc/security/msec/security.conf 	quiet
+echo -e "\t- Check suid root file integrity (backdoor check) : yes."
+    AddRules "CHECK_SUID_MD5=yes" /etc/security/msec/security.conf 	quiet
+echo -e "\t- Check suid group file : yes."
+    AddRules "CHECK_SUID_GROUP=yes" /etc/security/msec/security.conf	quiet
+echo -e "\t- Check world writable file : yes."
+    AddRules "CHECK_WRITEABLE=yes" /etc/security/msec/security.conf	quiet
+echo -e "\t- Check unowned file : yes."
+    AddRules "CHECK_UNOWNED=yes" /etc/security/msec/security.conf	quiet
+echo -e "\t- Check promiscuous mode : yes."
+    AddRules "CHECK_PROMISC=yes" /etc/security/msec/security.conf       quiet
+echo -e "\t- Check listening port : yes."                               
+    AddRules "CHECK_OPEN_PORT=yes" /etc/security/msec/security.conf	quiet
+echo -e "\t- Check passwd file integrity : yes."
+    AddRules "CHECK_PASSWD=yes" /etc/security/msec/security.conf	quiet
+echo -e "\t- Check shadow file integrity : yes."
+    AddRules "CHECK_SHADOW=yes" /etc/security/msec/security.conf	quiet
+echo -e "\t- Security warning on tty : yes."
+    AddRules "TTY_WARN=yes" /etc/security/msec/security.conf	        quiet
+echo -e "\t- Security warning by mail : yes."
+    AddRules "MAIL_WARN=yes" /etc/security/msec/security.conf       quiet
+    AddRules "MAIL_USER=root" /etc/security/msec/security.conf      quiet
+echo -e "\t- Security warning in syslog : yes."			
+    AddRules "SYSLOG_WARN=yes" /etc/security/msec/security.conf		
+# end security check
+
+# Check every 1 minutes for promisc problem
+echo "Adding promisc check in crontab (scheduled every minutes) :"
+AddRules "*/1 * * * *    root    /usr/share/msec/promisc_check.sh" /etc/crontab
+
+echo "Adding \"diff\" & \"global\" security check in crontab (scheduled every midnight) :"
+AddRules "0 4 * * *    root    /usr/share/msec/security.sh" /etc/crontab
+
+# Server update
+echo "Setting secure level variable to snf :"
+AddRules "export SECURE_LEVEL=snf" /etc/profile.d/msec.sh
+AddRules "setenv SECURE_LEVEL snf" /etc/profile.d/msec.csh
+
+
+export SECURE_LEVEL=snf
+
+IFS="
+"
+echo -n "Disabling all service, except : {"
+for service in `chkconfig --list | awk '{print $1}'`; do
+    if grep -qx ${service} /etc/security/msec/server.4; then
+        echo -n " ${service}"
+    fi
+done
+echo " } : "
+
+for service in `chkconfig --list | awk '{print $1}'`; do
+    chkconfig --del "${service}"
+    if ! chkconfig --msec --add "${service}"; then
+        echo -e "\t- Services ${service} scheduled to be disabled at next boot."
+    fi
+done
+echo -e "done.\n";
+
+# /etc/profile.d/msec.{sh,csh}
+echo "Setting umask to 022 (u=rw,g=rx) for root, 077 (u=rw) for user :"
+AddRules "if [[ \${UID} == 0 ]]; then umask 022; else umask 077; fi" /etc/profile.d/msec.sh
+AddRules "if [[ \${UID} == 0 ]]; then umask 022; else umask 077; fi" /etc/profile.d/msec.csh
+
+if [[ -f /lib/libsafe.so.2 ]]; then
+    echo "Enabling stack overflow protection :"
+    AddRules "/lib/libsafe.so.2" /etc/ld.so.preload
+fi
+
+# Do not boot on a shell
+ForbidReboot
+
+ForbidAutologin
+
+# Group were modified in lib.sh...
+grpconv
+
+ForbidUserList
+RootSshLogin snf