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security

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main
Robert 2 years ago
parent ec244aa739
commit 2f4b55048b
4 changed files with 174 additions and 10 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 20
      app/OS/neato_Alpine.php
  2. 71
      app/OS/neato_Ubuntu.php
  3. 12
      app/neato_colors.php
  4. 81
      config_files/deploy_security.php

20
app/OS/neato_Alpine.php
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@ -5,6 +5,7 @@ final class neato {
const get_opt = '/opt/';
const get_etc = '/etc/';
const get_bin = '/bin/';
const get_super_bin = '/sbin/';
const get_user_bin = '/usr/bin/';
const get_super_user_bin = '/usr/sbin/';
const get_user_local_bin = '/usr/local/bin/';
@ -24,11 +25,11 @@ final class neato {
check_for_error($exit_code, "Unable to {$action} Service called: {$name}");
return $exit_code;
}
public static function systemctl($name, $action = 'enable') {
// exec(self::get_bin . 'systemctl ' . safe_cmd($action, $name), $output, $exit_code);
// check_for_error($exit_code, "Unable to {$action} Service called: {$name}");
// return $exit_code;
// actions: add or del
public static function systemctl($name, $action = 'add') {
exec(self::get_super_bin . 'rc-update ' . safe_cmd($action, $name), $output, $exit_code);
check_for_error($exit_code, "Unable to {$action} Service called: {$name}");
return $exit_code;
}
public static function upgrade($prog) {
@ -53,10 +54,11 @@ final class neato {
}
public static function add_repo($repo) {
// exec(self::get_user_bin . 'add-apt-repository -y -u ' . safe_cmd_quotes($repo) . stderr(), $output, $exit_code);
// display($output); // -u = DO UPDATE once done...
// check_for_error($exit_code, "Unable to uninstall: {$repo}");
// return $exit_code;
exec("echo \"$repo\" >> /etc/apk/repositories");
exec(self::get_user_bin . 'apk update' . stderr(), $output, $exit_code);
display($output);
check_for_error($exit_code, "Unable to add new repo: {$repo}");
return $exit_code;
}
public static function update() {

71
app/OS/neato_Ubuntu.php
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@ -47,6 +47,13 @@ final class neato {
return $exit_code;
}
public static function purge($prog) {
exec(self::get_user_bin . 'apt-get --purge remove -y ' . safe_cmd_quotes($prog) . stderr(), $output, $exit_code);
display($output);
check_for_error($exit_code, "Unable to uninstall: {$prog}");
return $exit_code;
}
public static function uninstall($prog) {
exec(self::get_user_bin . 'apt-get remove -y ' . safe_cmd_quotes($prog) . stderr(), $output, $exit_code);
display($output);
@ -73,6 +80,15 @@ final class neato {
return $exit_code;
}
public static function no_sticky_bit($file) {
if (! file_exists($file)) {
return true;
}
exec(self::get_user_bin . 'chmod -s ' . safe_cmd($file), $output, $exit_code);
check_for_error($exit_code, "Unable to remove sticky bit with chmod: {$file}");
return $exit_code;
}
public static function chmod_on_folders($dir, $kind) {
if (!is_dir($dir)) {
$exit_code = false;
@ -115,6 +131,61 @@ final class neato {
return $exit_code;
}
public static function userdel($username) {
exec(self::get_super_user_bin . 'userdel ' . safe_cmd($username), $output, $exit_code);
if ($exit_code === true || $exit_code === 0) {
display(getTermColors("Deleted user account named: $username", ['color'=>'green']));
}
check_for_error($exit_code, "Unable to delete user: {$username}");
return $exit_code;
}
public static function useradd($username) {
exec(self::get_super_user_bin . 'useradd ' . safe_cmd($username), $output, $exit_code);
check_for_error($exit_code, "Unable to add new user: {$username}");
return $exit_code;
}
public static function lock_status($username) {
exec(self::get_user_bin . 'passwd -S ' . safe_cmd($username) . " | awk '{print $2}'", $output, $exit_code);
$sw = $output[0] ?? "";
switch ($sw) {
case "P": echo "Account is not locked"; break;
case "NP": echo "Account has no password"; break;
case "L": echo "Account is Locked"; break;
default: echo "Account does not exist?!"; break;
}
check_for_error($exit_code, "Unable to view account: {$username}");
return $exit_code;
}
public static function passwd($username) {
exec(self::get_user_bin . 'passwd ' . safe_cmd($username), $output, $exit_code);
check_for_error($exit_code, "Unable to set user password: {$username}");
return $exit_code;
}
// Details about age of passwords
public static function chage($username) {
exec(self::get_user_bin . 'chage -l ' . safe_cmd($username), $output, $exit_code);
check_for_error($exit_code, "Unable to view user password changes: {$username}");
return $exit_code;
}
// yyyy-mm-dd
public static function lock(string $username, string $expires_on="") {
$exp = (! empty($expires_on)) ? "--expiredate ". safe_cmd($expires_on) . " " : "";
exec(self::get_super_user_bin . 'usermod -L '. $exp . safe_cmd($username), $output, $exit_code);
check_for_error($exit_code, "Unable to Lock user account: {$username}");
return $exit_code;
}
public static function unlock(string $username, string $expires_on="") {
$exp = (! empty($expires_on)) ? "--expiredate ". safe_cmd($expires_on) . " " : "--expiredate '' ";
exec(self::get_super_user_bin . 'usermod -U ' . $exp . safe_cmd($username), $output, $exit_code);
check_for_error($exit_code, "Unable to Unlock user account: {$username}");
return $exit_code;
}
}
// end of neato installer commands

12
app/neato_colors.php
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@ -56,7 +56,17 @@ function getTermColors($input, $options) {
if ($bg_color !== '' && isset($bg_colors[$bg_color])) {
$colored_string .= "\033[" . $bg_colors[$bg_color] . "m";
}
$colored_string .= $input . "\033[0m";
$str = '';
if (is_array($input)) {
foreach ($input as $s) {
$str .= $s . PHP_EOL;
}
} else {
$str = $input;
}
$colored_string .= $str . "\033[0m";
return $colored_string;
}

81
config_files/deploy_security.php
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@ -0,0 +1,81 @@
<?php
Configure::set('display', true);
Configure::set('logfile', true);
$options = cgetopt(["updates"]);
$updates = $options['updates'] ?? "no";
Configure::set('remove_users', [
'shutdown', 'halt', 'games', 'operator',
'ftp', 'news', 'gopher',
]);
force_root();
display(getTermColors("Deleteing unused user accounts", ['color'=>'blue']));
$remove_users = Configure::get('remove_users');
foreach($remove_users as $del_user) {
do_command('userdel', $del_user);
}
display(getTermColors("Removing old un-needed programs", ['color'=>'blue']));
do_command('purge', "xinetd nis yp-tools tftpd atftpd tftpd-hpa telnetd rsh-server rsh-redone-server");
if ($updates === "yes") {
display("Full updates and unattended-upgrades");
do_command('full_update');
do_command('install', "unattended-upgrades");
do_command('systemctl', "unattended-upgrades", "start");
do_command('systemctl', "unattended-upgrades", "enable");
}
display(getTermColors("List services", ['color'=>'blue']));
exec(neato::get_bin . 'systemctl list-unit-files --type=service', $output, $exit_code);
display($output);
unset($output);
display(getTermColors("Verify no Accounts have Empty passwords", ['color'=>'blue']));
exec(neato::get_bin . 'awk -F: \'($2 == "") {print}\' /etc/shadow', $output, $exit_code);
if (count($output) > 0) {
display(getTermColors($output, ['color'=>'red']));
} else {
display(getTermColors("All accounts have passwords.", ['color'=>'green']));
}
unset($output);
display(getTermColors("Make sure No Non-Root accounts have UID set to 0", ['color'=>'blue']));
exec(neato::get_bin . 'awk -F: \'($3 == "0") {print}\' /etc/passwd', $output, $exit_code);
if (count($output) > 1) {
display(getTermColors($output, ['color'=>'red']));
} else {
display(getTermColors("All accounts are normal.", ['color'=>'green']));
}
unset($output);
display(getTermColors("World Writable files", ['color'=>'blue']));
exec(neato::get_bin . 'find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print', $output, $exit_code);
if (count($output) > 0) {
display(getTermColors($output, ['color'=>'red']));
} else {
display(getTermColors("No world writable files exists.", ['color'=>'green']));
}
unset($output);
display(getTermColors("Unwanted SUID and SGID bins", ['color'=>'blue']));
exec(neato::get_bin . 'find / \( -perm -4000 -o -perm -2000 \) -print', $output, $exit_code);
if (count($output) > 0) {
display(getTermColors($output, ['color'=>'red']));
} else {
display(getTermColors("No sticky bits found.", ['color'=>'green']));
}
unset($output);
display(getTermColors("No-owner Files", ['color'=>'blue']));
exec(neato::get_bin . 'find / -xdev \( -nouser -o -nogroup \) -print', $output, $exit_code);
if (count($output) > 0) {
display(getTermColors($output, ['color'=>'red']));
} else {
display(getTermColors("All files have owner-ship.", ['color'=>'green']));
}
unset($output);
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