Webserver install - Part 6 - Hardening V. - Debian Lenny

Installation

 

Bastille can be installed from source and from debian repository. I prefer repository and it is already installed from a previous section with psad. However in Lenny some things are missing so it wont start. We have to make some modifications to ake it useable.

Edit /usr/lib/Bastille/API.pm file and insert "DB5.0" into the file as seen below.

Open the file for editing:

nano /usr/lib/Bastille/API.pm

Insert "DB5.0" at these places:

sub get_supported_OS_list () {
  my @list = ( "DB5.0","DB2.2", "DB3.0", "DB3.1", "DB4.0",
           "RH6.0","RH6.1","RH6.2","RH7.0","RH7.1","RH7.2","RH7.3","RH8.0","RH9$
           "MN6.0","MN6.1","MN7.0","MN7.1","MN7.2","MN8.0","MN8.1","MN8.2",
           "HP-UX11.00","HP-UX11.11", "HP-UX11.22", "HP-UX11.23",
           "SE7.2","SE7.3", "SE8.0","TB7.0",
           "OSX10.2.0","OSX10.2.1","OSX10.2.2","OSX10.2.3","OSX10.2.4");
  return \@list;
}

Open /usr/lib/Bastille/IOLoader.pm and insert "DB5.0" in it.

Open the file for editing:

nano /usr/lib/Bastille/IOLoader.pm

Insert the string "DB5.0" at these places:

 if ($data =~ /\bDB\b/) {
                                my $supported_versions = 'DB2.2 DB3.0 DB3.1 DB4.0 DB5.0';
                                $data =~ s/\bDB\b/$supported_versions/;
                            }

Now we can run the program.


Configuration

 

I show the screenshots and also the final config file. You could use the config file but I suggest you to read the whole Bastille setup at least once.

Start the tool with the InteractiveBastille command:

InteractiveBastille

I will not comment the pictures because they are self explaining.

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Configuration can be checked or modified in the config file:

nano /etc/Bastille/config
My config file looks like this:

# Q: Would you like to set more restrictive permissions on the administration utilities? [N]
FilePermissions.generalperms_1_1="Y"
# Q: Should Bastille disable clear-text r-protocols that use IP-based authentication? [Y]
AccountSecurity.protectrhost="Y"
# Q: Would you like to enforce password aging? [Y]
AccountSecurity.passwdage="Y"
# Q: Would you like to restrict the use of cron to administrative accounts? [Y]
AccountSecurity.cronuser="Y"
# Q: Do you want to set the default umask? [Y]
AccountSecurity.umaskyn="Y"
# Q: What umask would you like to set for users on the system? [077]
AccountSecurity.umask="022"
# Q: Should we disallow root login on all ttys? [N]
AccountSecurity.rootttylogins="Y"
# Q: Would you like to password-protect the GRUB prompt? [N]
BootSecurity.protectgrub="N"
# Q: Would you like to disable CTRL-ALT-DELETE rebooting? [N]
BootSecurity.secureinittab="N"
# Q: Would you like to password protect single-user mode? [Y]
BootSecurity.passsum="Y"
# Q: Would you like to set a default-deny on TCP Wrappers and xinetd? [N]
SecureInetd.tcpd_default_deny="N"
# Q: Should Bastille ensure the telnet service does not run on this system? [y]
SecureInetd.deactivate_telnet="Y"
# Q: Should Bastille ensure inetd's FTP service does not run on this system? [y]
SecureInetd.deactivate_ftp="Y"
# Q: Would you like to display "Authorized Use" messages at log-in time? [Y]
SecureInetd.banners="Y"
# Q: Who is responsible for granting authorization to use this machine?
SecureInetd.owner="its owner"
# Q: Would you like to put limits on system resource usage? [N]
ConfigureMiscPAM.limitsconf="Y"
# Q: Should we restrict console access to a small group of user accounts? [N]
ConfigureMiscPAM.consolelogin="Y"
# Q: Which accounts should be able to login at console? [root]
ConfigureMiscPAM.consolelogin_accounts="user"
# Q: Would you like to add additional logging? [Y]
Logging.morelogging="Y"
# Q: Do you have a remote logging host? [N]
Logging.remotelog="N"
# Q: Would you like to install TMPDIR/TMP scripts? [N]
TMPDIR.tmpdir="Y"
# Q: Would you like to run the packet filtering script? [N]
Firewall.ip_intro="N"

To create the same message at logon for everybody copy the newly generated welcome message to /etc/motd.tail

cat /etc/issue >> /etc/motd.tail

 

Links:

http://bastille-linux.sourceforge.net/running_bastille_on.htm#debian

 

The next tutorial is: Webserver install - Part 7 - Hardening VI. - Debian Lenny