| 1 |
<?php |
| 2 |
/** |
| 3 |
* Security Analyzer — Internal-exclusive category (33 pts). |
| 4 |
* |
| 5 |
* The differential of this analyzer vs any external scanner. Each check |
| 6 |
* reads data that is impossible to observe from the outside. |
| 7 |
* |
| 8 |
* Checks: |
| 9 |
* - php_version_eol (3) |
| 10 |
* - wp_core_updates (3) |
| 11 |
* - plugin_updates (2) |
| 12 |
* - theme_updates (1) |
| 13 |
* - inactive_plugins (2) |
| 14 |
* - closed_plugins (3) ← v2.6.0: reads the cached state from the daily |
| 15 |
* Vigilante_Plugin_Status check; no extra HTTP call. |
| 16 |
* - self_integrity (3) ← v3.0.0: reads the cached state written by |
| 17 |
* Vigilante_Self_Integrity; no FS hashing, no HTTP. |
| 18 |
* - file_permissions (2) |
| 19 |
* - salts_default (2) |
| 20 |
* - table_prefix (2) |
| 21 |
* - admin_username (2) |
| 22 |
* - admins_without_2fa (2) |
| 23 |
* - vigilante_modules_off (2) |
| 24 |
* - activity_log_errors (1) |
| 25 |
* - file_integrity_status (1) |
| 26 |
* - audit_alerts_active (2) ← v2.8.0: warns when Security Audit is on but no |
| 27 |
* audit alert is configured; skips when off. |
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* |
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* @package Vigilante |
| 30 |
* @since 2.1.0 |
| 31 |
*/ |
| 32 |
|
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// Prevent direct access. |
| 34 |
if ( ! defined( 'ABSPATH' ) ) { |
| 35 |
exit; |
| 36 |
} |
| 37 |
|
| 38 |
/** |
| 39 |
* Internal-only checks. |
| 40 |
*/ |
| 41 |
class Vigilante_SA_Category_Internal { |
| 42 |
|
| 43 |
const SLUG = 'internal'; |
| 44 |
|
| 45 |
/** |
| 46 |
* @var Vigilante_Settings |
| 47 |
*/ |
| 48 |
private $settings; |
| 49 |
|
| 50 |
/** |
| 51 |
* @var Vigilante_Activity_Log|null |
| 52 |
*/ |
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private $activity_log; |
| 54 |
|
| 55 |
/** |
| 56 |
* @param Vigilante_Settings $settings |
| 57 |
* @param Vigilante_Activity_Log|null $activity_log |
| 58 |
*/ |
| 59 |
public function __construct( Vigilante_Settings $settings, $activity_log = null ) { |
| 60 |
$this->settings = $settings; |
| 61 |
$this->activity_log = $activity_log; |
| 62 |
} |
| 63 |
|
| 64 |
/** |
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* Run the category. All checks are fast (no HTTP). |
| 66 |
* |
| 67 |
* @param string $phase 'fast' | 'slow' | 'all'. |
| 68 |
* @return Vigilante_SA_Check_Result[] |
| 69 |
*/ |
| 70 |
public function run( $phase = 'all' ) { |
| 71 |
if ( 'slow' === $phase ) { |
| 72 |
return array(); |
| 73 |
} |
| 74 |
|
| 75 |
$results = array(); |
| 76 |
$results[] = $this->check_php_version(); |
| 77 |
$results[] = $this->check_wp_core_updates(); |
| 78 |
$results[] = $this->check_plugin_updates(); |
| 79 |
$results[] = $this->check_theme_updates(); |
| 80 |
$results[] = $this->check_inactive_plugins(); |
| 81 |
$results[] = $this->check_closed_plugins(); |
| 82 |
$results[] = $this->check_self_integrity(); |
| 83 |
$results[] = $this->check_file_permissions(); |
| 84 |
$results[] = $this->check_salts_default(); |
| 85 |
$results[] = $this->check_table_prefix(); |
| 86 |
$results[] = $this->check_admin_username(); |
| 87 |
$results[] = $this->check_admins_without_2fa(); |
| 88 |
$results[] = $this->check_vigilante_modules_off(); |
| 89 |
$results[] = $this->check_activity_log_errors(); |
| 90 |
$results[] = $this->check_file_integrity_status(); |
| 91 |
$results[] = $this->check_audit_alerts_active(); |
| 92 |
|
| 93 |
return $results; |
| 94 |
} |
| 95 |
|
| 96 |
private function check_php_version() { |
| 97 |
$args = array( |
| 98 |
'id' => 'php_version_eol', |
| 99 |
'category' => self::SLUG, |
| 100 |
'max' => 3, |
| 101 |
'label' => __( 'PHP version support', 'vigilante' ), |
| 102 |
'fix_link' => '', |
| 103 |
); |
| 104 |
|
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$branch = Vigilante_SA_Helpers::current_php_branch(); |
| 106 |
$table = Vigilante_SA_Helpers::php_eol_table(); |
| 107 |
$args['data'] = array( |
| 108 |
'php_branch' => $branch, |
| 109 |
'php_full' => PHP_VERSION, |
| 110 |
); |
| 111 |
|
| 112 |
if ( ! isset( $table[ $branch ] ) ) { |
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$args['detail'] = sprintf( |
| 114 |
/* translators: %s: PHP branch like 8.1 */ |
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__( 'PHP %s is unknown to the built-in EOL table. Verify with your host.', 'vigilante' ), |
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$branch |
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); |
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return Vigilante_SA_Check_Result::warn( $args ); |
| 119 |
} |
| 120 |
|
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$eol_timestamp = strtotime( $table[ $branch ] ); |
| 122 |
$args['data']['eol_date'] = $table[ $branch ]; |
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|
| 124 |
if ( time() > $eol_timestamp ) { |
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$args['detail'] = sprintf( |
| 126 |
/* translators: 1: php branch, 2: EOL date */ |
| 127 |
__( 'PHP %1$s reached end-of-life on %2$s. Upgrade to a supported branch immediately.', 'vigilante' ), |
| 128 |
$branch, |
| 129 |
$table[ $branch ] |
| 130 |
); |
| 131 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 132 |
} |
| 133 |
|
| 134 |
$months_left = (int) floor( ( $eol_timestamp - time() ) / ( 30 * DAY_IN_SECONDS ) ); |
| 135 |
$args['data']['months_left'] = $months_left; |
| 136 |
if ( $months_left <= 6 ) { |
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$args['detail'] = sprintf( |
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/* translators: 1: branch, 2: months */ |
| 139 |
__( 'PHP %1$s reaches end-of-life in roughly %2$d months. Start planning the upgrade.', 'vigilante' ), |
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$branch, |
| 141 |
$months_left |
| 142 |
); |
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return Vigilante_SA_Check_Result::warn( $args ); |
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} |
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|
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$args['detail'] = sprintf( |
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/* translators: 1: branch, 2: EOL date */ |
| 148 |
__( 'PHP %1$s within support window (EOL %2$s).', 'vigilante' ), |
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$branch, |
| 150 |
$table[ $branch ] |
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); |
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return Vigilante_SA_Check_Result::pass( $args ); |
| 153 |
} |
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|
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private function check_wp_core_updates() { |
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$args = array( |
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'id' => 'wp_core_updates', |
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'category' => self::SLUG, |
| 159 |
'max' => 3, |
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'label' => __( 'WordPress core version', 'vigilante' ), |
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'fix_link' => admin_url( 'update-core.php' ), |
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); |
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|
| 164 |
if ( ! function_exists( 'get_core_updates' ) ) { |
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require_once ABSPATH . 'wp-admin/includes/update.php'; |
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} |
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$updates = function_exists( 'get_core_updates' ) ? get_core_updates() : array(); |
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|
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$has_update = false; |
| 170 |
$next_version = ''; |
| 171 |
if ( is_array( $updates ) ) { |
| 172 |
foreach ( $updates as $u ) { |
| 173 |
if ( isset( $u->response ) && 'upgrade' === $u->response ) { |
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$has_update = true; |
| 175 |
$next_version = isset( $u->version ) ? $u->version : ''; |
| 176 |
break; |
| 177 |
} |
| 178 |
} |
| 179 |
} |
| 180 |
|
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$args['data'] = array( |
| 182 |
'current' => get_bloginfo( 'version' ), |
| 183 |
'next' => $next_version, |
| 184 |
); |
| 185 |
|
| 186 |
if ( $has_update ) { |
| 187 |
$args['detail'] = sprintf( |
| 188 |
/* translators: 1: current version, 2: new version */ |
| 189 |
__( 'Core can update from %1$s to %2$s. Apply the update now.', 'vigilante' ), |
| 190 |
get_bloginfo( 'version' ), |
| 191 |
$next_version |
| 192 |
); |
| 193 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 194 |
} |
| 195 |
|
| 196 |
$args['detail'] = sprintf( |
| 197 |
/* translators: %s: wp version */ |
| 198 |
__( 'Running WordPress %s — no core update pending.', 'vigilante' ), |
| 199 |
get_bloginfo( 'version' ) |
| 200 |
); |
| 201 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 202 |
} |
| 203 |
|
| 204 |
private function check_plugin_updates() { |
| 205 |
$args = array( |
| 206 |
'id' => 'plugin_updates', |
| 207 |
'category' => self::SLUG, |
| 208 |
'max' => 2, |
| 209 |
'label' => __( 'Plugin updates', 'vigilante' ), |
| 210 |
'fix_link' => admin_url( 'plugins.php?plugin_status=upgrade' ), |
| 211 |
); |
| 212 |
|
| 213 |
if ( ! function_exists( 'get_plugin_updates' ) ) { |
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require_once ABSPATH . 'wp-admin/includes/update.php'; |
| 215 |
} |
| 216 |
$updates = function_exists( 'get_plugin_updates' ) ? get_plugin_updates() : array(); |
| 217 |
$count = is_array( $updates ) ? count( $updates ) : 0; |
| 218 |
$args['data'] = array( 'count' => $count ); |
| 219 |
|
| 220 |
if ( 0 === $count ) { |
| 221 |
$args['detail'] = __( 'All active plugins on their latest version.', 'vigilante' ); |
| 222 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 223 |
} |
| 224 |
if ( $count <= 2 ) { |
| 225 |
$args['detail'] = sprintf( |
| 226 |
/* translators: %d: count */ |
| 227 |
_n( '%d plugin has an update available.', '%d plugins have updates available.', $count, 'vigilante' ), |
| 228 |
$count |
| 229 |
); |
| 230 |
return Vigilante_SA_Check_Result::warn( $args ); |
| 231 |
} |
| 232 |
|
| 233 |
$args['detail'] = sprintf( |
| 234 |
/* translators: %d: count */ |
| 235 |
_n( '%d plugin is outdated.', '%d plugins are outdated. Apply updates as soon as possible.', $count, 'vigilante' ), |
| 236 |
$count |
| 237 |
); |
| 238 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 239 |
} |
| 240 |
|
| 241 |
private function check_theme_updates() { |
| 242 |
$args = array( |
| 243 |
'id' => 'theme_updates', |
| 244 |
'category' => self::SLUG, |
| 245 |
'max' => 1, |
| 246 |
'label' => __( 'Theme updates', 'vigilante' ), |
| 247 |
'fix_link' => admin_url( 'themes.php' ), |
| 248 |
); |
| 249 |
|
| 250 |
if ( ! function_exists( 'get_theme_updates' ) ) { |
| 251 |
require_once ABSPATH . 'wp-admin/includes/update.php'; |
| 252 |
} |
| 253 |
$updates = function_exists( 'get_theme_updates' ) ? get_theme_updates() : array(); |
| 254 |
$count = is_array( $updates ) ? count( $updates ) : 0; |
| 255 |
$args['data'] = array( 'count' => $count ); |
| 256 |
|
| 257 |
if ( 0 === $count ) { |
| 258 |
$args['detail'] = __( 'All installed themes on their latest version.', 'vigilante' ); |
| 259 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 260 |
} |
| 261 |
|
| 262 |
$args['detail'] = sprintf( |
| 263 |
/* translators: %d: count */ |
| 264 |
_n( '%d theme needs updating.', '%d themes need updating.', $count, 'vigilante' ), |
| 265 |
$count |
| 266 |
); |
| 267 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 268 |
} |
| 269 |
|
| 270 |
private function check_inactive_plugins() { |
| 271 |
$args = array( |
| 272 |
'id' => 'inactive_plugins', |
| 273 |
'category' => self::SLUG, |
| 274 |
'max' => 2, |
| 275 |
'label' => __( 'Inactive plugins', 'vigilante' ), |
| 276 |
'fix_link' => admin_url( 'plugins.php?plugin_status=inactive' ), |
| 277 |
); |
| 278 |
|
| 279 |
if ( ! function_exists( 'get_plugins' ) ) { |
| 280 |
require_once ABSPATH . 'wp-admin/includes/plugin.php'; |
| 281 |
} |
| 282 |
// Always read fresh: some caches can stale-serve this option on admin-ajax. |
| 283 |
wp_cache_delete( 'alloptions', 'options' ); |
| 284 |
|
| 285 |
$plugins_map = (array) get_plugins(); |
| 286 |
$all = array_keys( $plugins_map ); |
| 287 |
$active = (array) get_option( 'active_plugins', array() ); |
| 288 |
|
| 289 |
if ( is_multisite() ) { |
| 290 |
$network_active = array_keys( (array) get_site_option( 'active_sitewide_plugins', array() ) ); |
| 291 |
$active = array_merge( $active, $network_active ); |
| 292 |
} |
| 293 |
|
| 294 |
$inactive = array_values( array_diff( $all, $active ) ); |
| 295 |
$count = count( $inactive ); |
| 296 |
|
| 297 |
// Build a friendly sample of the first few inactive plugin names. |
| 298 |
$sample_names = array(); |
| 299 |
foreach ( array_slice( $inactive, 0, 5 ) as $file ) { |
| 300 |
$sample_names[] = isset( $plugins_map[ $file ]['Name'] ) && $plugins_map[ $file ]['Name'] |
| 301 |
? $plugins_map[ $file ]['Name'] |
| 302 |
: $file; |
| 303 |
} |
| 304 |
|
| 305 |
$args['data'] = array( |
| 306 |
'count' => $count, |
| 307 |
'total_known' => count( $all ), |
| 308 |
'total_active' => count( array_unique( $active ) ), |
| 309 |
'sample_names' => $sample_names, |
| 310 |
); |
| 311 |
|
| 312 |
if ( 0 === $count ) { |
| 313 |
$args['detail'] = __( 'No inactive plugins installed.', 'vigilante' ); |
| 314 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 315 |
} |
| 316 |
if ( $count <= 2 ) { |
| 317 |
$args['detail'] = sprintf( |
| 318 |
/* translators: 1: count, 2: sample names */ |
| 319 |
_n( |
| 320 |
'%1$d plugin is installed but inactive (%2$s).', |
| 321 |
'%1$d plugins are installed but inactive (%2$s).', |
| 322 |
$count, |
| 323 |
'vigilante' |
| 324 |
), |
| 325 |
$count, |
| 326 |
implode( ', ', $sample_names ) |
| 327 |
); |
| 328 |
return Vigilante_SA_Check_Result::warn( $args ); |
| 329 |
} |
| 330 |
|
| 331 |
$args['detail'] = sprintf( |
| 332 |
/* translators: 1: count, 2: sample names */ |
| 333 |
__( '%1$d inactive plugins installed (e.g. %2$s). Delete what you no longer use — inactive code still lives on disk and can be exploited.', 'vigilante' ), |
| 334 |
$count, |
| 335 |
implode( ', ', $sample_names ) |
| 336 |
); |
| 337 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 338 |
} |
| 339 |
|
| 340 |
/** |
| 341 |
* Closed + Removed plugins (v2.6.0). |
| 342 |
* |
| 343 |
* Reads the cached state map populated by Vigilante_Plugin_Status (daily |
| 344 |
* cron + Run Scan Now). No extra HTTP call here. Ignored slugs are |
| 345 |
* filtered out — if the admin chose to silence a slug it stays out of |
| 346 |
* the score too, mirroring how the rest of Vigilant treats ignored items. |
| 347 |
*/ |
| 348 |
private function check_closed_plugins() { |
| 349 |
$args = array( |
| 350 |
'id' => 'closed_plugins', |
| 351 |
'category' => self::SLUG, |
| 352 |
'max' => 3, |
| 353 |
'label' => __( 'Closed or removed plugins', 'vigilante' ), |
| 354 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'file-integrity', 'vigilante-section-fi-last-scan' ), |
| 355 |
); |
| 356 |
|
| 357 |
$fi_options = (array) $this->settings->get_section( 'file_integrity' ); |
| 358 |
$check_enabled = ! empty( $fi_options['check_closed_plugins'] ); |
| 359 |
|
| 360 |
if ( ! $check_enabled ) { |
| 361 |
$args['detail'] = __( 'The "Closed plugins" check is disabled in File Integrity > Scan Scope.', 'vigilante' ); |
| 362 |
return Vigilante_SA_Check_Result::skip( $args ); |
| 363 |
} |
| 364 |
|
| 365 |
if ( ! class_exists( 'Vigilante_Plugin_Status' ) ) { |
| 366 |
require_once VIGILANTE_INCLUDES_DIR . 'class-plugin-status.php'; |
| 367 |
} |
| 368 |
$checker = new Vigilante_Plugin_Status( $this->settings, $this->activity_log ); |
| 369 |
$closed = $checker->get_closed_plugins(); |
| 370 |
$last_check = $checker->get_last_check_time(); |
| 371 |
$ignored_slugs = $checker->get_ignored_slugs(); |
| 372 |
|
| 373 |
$args['data'] = array( |
| 374 |
'closed_count' => count( $closed ), |
| 375 |
'ignored_count' => count( $ignored_slugs ), |
| 376 |
'last_check' => $last_check, |
| 377 |
); |
| 378 |
|
| 379 |
if ( 0 === $last_check ) { |
| 380 |
$args['detail'] = __( 'The daily closed-plugins check has not run yet. It will run automatically within the next 24 hours, or with the next "Run Scan Now".', 'vigilante' ); |
| 381 |
return Vigilante_SA_Check_Result::skip( $args ); |
| 382 |
} |
| 383 |
|
| 384 |
if ( empty( $closed ) ) { |
| 385 |
if ( ! empty( $ignored_slugs ) ) { |
| 386 |
$args['detail'] = sprintf( |
| 387 |
/* translators: %d: count of ignored slugs */ |
| 388 |
_n( |
| 389 |
'No active closed plugins. %d slug is on the ignore list and excluded from this check.', |
| 390 |
'No active closed plugins. %d slugs are on the ignore list and excluded from this check.', |
| 391 |
count( $ignored_slugs ), |
| 392 |
'vigilante' |
| 393 |
), |
| 394 |
count( $ignored_slugs ) |
| 395 |
); |
| 396 |
} else { |
| 397 |
$args['detail'] = __( 'No installed plugin is currently closed in the WordPress.org repository.', 'vigilante' ); |
| 398 |
} |
| 399 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 400 |
} |
| 401 |
|
| 402 |
// Build a friendly sample of names for the detail message. |
| 403 |
$sample = array(); |
| 404 |
foreach ( array_slice( $closed, 0, 5, true ) as $slug => $entry ) { |
| 405 |
$sample[] = isset( $entry['name'] ) && $entry['name'] ? $entry['name'] : $slug; |
| 406 |
} |
| 407 |
|
| 408 |
$args['detail'] = sprintf( |
| 409 |
/* translators: 1: count, 2: sample names */ |
| 410 |
_n( |
| 411 |
'%1$d plugin installed on this site is currently closed or removed in the WordPress.org repository (%2$s). Closures usually indicate malware, security issues, guideline violations or supply chain compromises. Uninstall and replace as soon as possible.', |
| 412 |
'%1$d plugins installed on this site are currently closed or removed in the WordPress.org repository (%2$s). Closures usually indicate malware, security issues, guideline violations or supply chain compromises. Uninstall and replace as soon as possible.', |
| 413 |
count( $closed ), |
| 414 |
'vigilante' |
| 415 |
), |
| 416 |
count( $closed ), |
| 417 |
implode( ', ', $sample ) |
| 418 |
); |
| 419 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 420 |
} |
| 421 |
|
| 422 |
/** |
| 423 |
* Vigilant self-integrity state (self-protection, 3.0.0). |
| 424 |
* |
| 425 |
* Reads the cached vigilante_self_integrity_state option written by |
| 426 |
* Vigilante_Self_Integrity: no filesystem hashing and no HTTP here, so |
| 427 |
* the check is fast-phase safe. The wording is the shared guidance |
| 428 |
* catalogue, so this check, the File Integrity box, the audit details and |
| 429 |
* the alert email say the same thing about the same finding. |
| 430 |
* |
| 431 |
* It is the heaviest single check of the analyzer (10 points) and a |
| 432 |
* critical result caps the whole score in build_report(): every other |
| 433 |
* result is computed by the same code whose files were changed. |
| 434 |
*/ |
| 435 |
private function check_self_integrity() { |
| 436 |
$args = array( |
| 437 |
'id' => 'self_integrity', |
| 438 |
'category' => self::SLUG, |
| 439 |
'max' => 10, |
| 440 |
'label' => __( 'Vigilant self-protection', 'vigilante' ), |
| 441 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'file-integrity', 'vigilante-section-fi-self' ), |
| 442 |
); |
| 443 |
|
| 444 |
$enabled = Vigilante_Self_Integrity::is_on(); |
| 445 |
$state = Vigilante_Self_Integrity::display_state(); |
| 446 |
$tone = Vigilante_Self_Integrity::tone( $state, $enabled ); |
| 447 |
$findings = Vigilante_Self_Integrity::state_findings( $state, $enabled ); |
| 448 |
$files = isset( $state['files_checked'] ) ? (int) $state['files_checked'] : 0; |
| 449 |
$anchors = ( isset( $state['anchors'] ) && is_array( $state['anchors'] ) ) ? $state['anchors'] : array(); |
| 450 |
|
| 451 |
$args['data'] = array( |
| 452 |
'status' => isset( $state['last_status'] ) ? (string) $state['last_status'] : '', |
| 453 |
'tone' => $tone, |
| 454 |
'files_checked' => $files, |
| 455 |
'anchors' => count( array_filter( $anchors ) ), |
| 456 |
'findings' => count( $findings ), |
| 457 |
'last_check' => isset( $state['last_check'] ) ? (int) $state['last_check'] : 0, |
| 458 |
); |
| 459 |
|
| 460 |
// Worst finding first: it is the one that decides the tone, so it is |
| 461 |
// the one to explain. |
| 462 |
$worst = null; |
| 463 |
foreach ( $findings as $finding ) { |
| 464 |
$severity = isset( $finding['severity'] ) ? (string) $finding['severity'] : ''; |
| 465 |
if ( 'critical' === $severity ) { |
| 466 |
$worst = $finding; |
| 467 |
break; |
| 468 |
} |
| 469 |
if ( 'warning' === $severity && null === $worst ) { |
| 470 |
$worst = $finding; |
| 471 |
} |
| 472 |
} |
| 473 |
|
| 474 |
if ( null !== $worst ) { |
| 475 |
$guidance = Vigilante_Self_Integrity_Guidance::for_finding( $worst ); |
| 476 |
} else { |
| 477 |
$guidance = Vigilante_Self_Integrity_Guidance::for_status( |
| 478 |
array( |
| 479 |
'status' => isset( $state['last_status'] ) ? $state['last_status'] : '', |
| 480 |
'files' => $files, |
| 481 |
'anchors' => $anchors, |
| 482 |
'enabled' => $enabled, |
| 483 |
'has_run' => ! empty( $state['last_check'] ), |
| 484 |
) |
| 485 |
); |
| 486 |
} |
| 487 |
|
| 488 |
$detail = $guidance['title'] . '. ' . $guidance['meaning']; |
| 489 |
if ( ! empty( $guidance['steps'] ) ) { |
| 490 |
$detail .= ' ' . $guidance['steps'][0]; |
| 491 |
} |
| 492 |
$count = count( $findings ); |
| 493 |
if ( $count > 1 ) { |
| 494 |
$detail .= ' ' . sprintf( |
| 495 |
/* translators: %d: number of findings about Vigilant own files */ |
| 496 |
_n( |
| 497 |
'%d finding in total: File Integrity lists every one, with what it means and what to do.', |
| 498 |
'%d findings in total: File Integrity lists every one, with what each one means and what to do.', |
| 499 |
$count, |
| 500 |
'vigilante' |
| 501 |
), |
| 502 |
$count |
| 503 |
); |
| 504 |
} |
| 505 |
$args['detail'] = $detail; |
| 506 |
|
| 507 |
if ( 'none' === $tone ) { |
| 508 |
return Vigilante_SA_Check_Result::skip( $args ); |
| 509 |
} |
| 510 |
// Switched off by code counts as a failure, not as a check that did not |
| 511 |
// apply: somebody had to write that filter. |
| 512 |
if ( 'critical' === $tone || 'off' === $tone ) { |
| 513 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 514 |
} |
| 515 |
if ( 'warning' === $tone ) { |
| 516 |
return Vigilante_SA_Check_Result::warn( $args ); |
| 517 |
} |
| 518 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 519 |
} |
| 520 |
|
| 521 |
private function check_file_permissions() { |
| 522 |
$args = array( |
| 523 |
'id' => 'file_permissions', |
| 524 |
'category' => self::SLUG, |
| 525 |
'max' => 2, |
| 526 |
'label' => __( 'Core file permissions', 'vigilante' ), |
| 527 |
'fix_link' => '', |
| 528 |
); |
| 529 |
|
| 530 |
$wp_config = ABSPATH . 'wp-config.php'; |
| 531 |
$htaccess = ABSPATH . '.htaccess'; |
| 532 |
$issues = array(); |
| 533 |
|
| 534 |
if ( file_exists( $wp_config ) ) { |
| 535 |
$perm = fileperms( $wp_config ) & 0777; |
| 536 |
// Anything more permissive than 0644 is worth flagging. |
| 537 |
if ( $perm & 0022 ) { |
| 538 |
$issues[] = sprintf( 'wp-config.php: %s', self::octal( $perm ) ); |
| 539 |
} |
| 540 |
} |
| 541 |
|
| 542 |
if ( file_exists( $htaccess ) ) { |
| 543 |
$perm = fileperms( $htaccess ) & 0777; |
| 544 |
if ( $perm & 0022 ) { |
| 545 |
$issues[] = sprintf( '.htaccess: %s', self::octal( $perm ) ); |
| 546 |
} |
| 547 |
} |
| 548 |
|
| 549 |
$args['data'] = array( 'issues' => $issues ); |
| 550 |
|
| 551 |
if ( empty( $issues ) ) { |
| 552 |
$args['detail'] = __( 'wp-config.php and .htaccess are not world-writable.', 'vigilante' ); |
| 553 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 554 |
} |
| 555 |
|
| 556 |
$args['detail'] = sprintf( |
| 557 |
/* translators: %s: comma-separated list of files with octal perms */ |
| 558 |
__( 'World-writable permissions detected: %s. Ask your host to tighten them.', 'vigilante' ), |
| 559 |
implode( ', ', $issues ) |
| 560 |
); |
| 561 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 562 |
} |
| 563 |
|
| 564 |
private function check_salts_default() { |
| 565 |
$args = array( |
| 566 |
'id' => 'salts_default', |
| 567 |
'category' => self::SLUG, |
| 568 |
'max' => 2, |
| 569 |
'label' => __( 'Secret keys (salts)', 'vigilante' ), |
| 570 |
'fix_link' => '', |
| 571 |
); |
| 572 |
|
| 573 |
$keys = array( 'AUTH_KEY', 'SECURE_AUTH_KEY', 'LOGGED_IN_KEY', 'NONCE_KEY', |
| 574 |
'AUTH_SALT', 'SECURE_AUTH_SALT', 'LOGGED_IN_SALT', 'NONCE_SALT' ); |
| 575 |
|
| 576 |
$missing_or_weak = array(); |
| 577 |
foreach ( $keys as $k ) { |
| 578 |
if ( ! defined( $k ) ) { |
| 579 |
$missing_or_weak[] = $k; |
| 580 |
continue; |
| 581 |
} |
| 582 |
$val = constant( $k ); |
| 583 |
if ( ! is_string( $val ) || strlen( $val ) < 32 ) { |
| 584 |
$missing_or_weak[] = $k; |
| 585 |
continue; |
| 586 |
} |
| 587 |
if ( false !== stripos( $val, 'put your unique phrase here' ) ) { |
| 588 |
$missing_or_weak[] = $k; |
| 589 |
} |
| 590 |
} |
| 591 |
|
| 592 |
$args['data'] = array( 'weak_keys' => $missing_or_weak ); |
| 593 |
|
| 594 |
if ( empty( $missing_or_weak ) ) { |
| 595 |
$args['detail'] = __( 'All WordPress secret keys are defined and at least 32 characters long.', 'vigilante' ); |
| 596 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 597 |
} |
| 598 |
|
| 599 |
$args['detail'] = sprintf( |
| 600 |
/* translators: %s: comma-separated key names */ |
| 601 |
__( 'These secret keys look weak or default: %s. Regenerate them from https://api.wordpress.org/secret-key/1.1/salt/', 'vigilante' ), |
| 602 |
implode( ', ', $missing_or_weak ) |
| 603 |
); |
| 604 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 605 |
} |
| 606 |
|
| 607 |
private function check_table_prefix() { |
| 608 |
global $wpdb; |
| 609 |
$args = array( |
| 610 |
'id' => 'table_prefix', |
| 611 |
'category' => self::SLUG, |
| 612 |
'max' => 2, |
| 613 |
'label' => __( 'Database prefix', 'vigilante' ), |
| 614 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'wp-hardening', 'vigilante-section-hardening-database' ), |
| 615 |
); |
| 616 |
|
| 617 |
$prefix = $wpdb ? $wpdb->prefix : 'wp_'; |
| 618 |
$args['data'] = array( 'prefix' => $prefix ); |
| 619 |
|
| 620 |
if ( 'wp_' === $prefix ) { |
| 621 |
$args['detail'] = __( 'The database prefix is still the default "wp_". Change it to a custom prefix.', 'vigilante' ); |
| 622 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 623 |
} |
| 624 |
|
| 625 |
$args['detail'] = sprintf( |
| 626 |
/* translators: %s: custom table prefix */ |
| 627 |
__( 'Using a custom database prefix: %s', 'vigilante' ), |
| 628 |
$prefix |
| 629 |
); |
| 630 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 631 |
} |
| 632 |
|
| 633 |
private function check_admin_username() { |
| 634 |
$args = array( |
| 635 |
'id' => 'admin_username', |
| 636 |
'category' => self::SLUG, |
| 637 |
'max' => 2, |
| 638 |
'label' => __( 'Administrator named "admin"', 'vigilante' ), |
| 639 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'users', 'vigilante-section-users-password' ), |
| 640 |
); |
| 641 |
|
| 642 |
$user = get_user_by( 'login', 'admin' ); |
| 643 |
if ( $user instanceof WP_User && in_array( 'administrator', (array) $user->roles, true ) ) { |
| 644 |
$args['detail'] = __( 'A user named "admin" with administrator role exists. Create a new admin account and delete this one.', 'vigilante' ); |
| 645 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 646 |
} |
| 647 |
|
| 648 |
$args['detail'] = __( 'No administrator is named "admin".', 'vigilante' ); |
| 649 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 650 |
} |
| 651 |
|
| 652 |
private function check_admins_without_2fa() { |
| 653 |
$args = array( |
| 654 |
'id' => 'admins_without_2fa', |
| 655 |
'category' => self::SLUG, |
| 656 |
'max' => 2, |
| 657 |
'label' => __( 'Administrators with 2FA enrolled', 'vigilante' ), |
| 658 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'login', 'vigilante-section-login-2fa' ), |
| 659 |
); |
| 660 |
|
| 661 |
$two_factor = $this->settings->get_option( 'login_security', 'two_factor', array() ); |
| 662 |
if ( empty( $two_factor['enabled'] ) ) { |
| 663 |
$args['detail'] = __( '2FA is not enabled globally, so no administrator is protected with a second factor.', 'vigilante' ); |
| 664 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 665 |
} |
| 666 |
|
| 667 |
$admins = get_users( |
| 668 |
array( |
| 669 |
'role' => 'administrator', |
| 670 |
'fields' => array( 'ID', 'user_login' ), |
| 671 |
) |
| 672 |
); |
| 673 |
if ( empty( $admins ) ) { |
| 674 |
$args['detail'] = __( 'No administrators found (?).', 'vigilante' ); |
| 675 |
return Vigilante_SA_Check_Result::skip( $args ); |
| 676 |
} |
| 677 |
|
| 678 |
$method = isset( $two_factor['method'] ) ? $two_factor['method'] : 'email'; |
| 679 |
$unenrolled = array(); |
| 680 |
$enrolled_count = 0; |
| 681 |
|
| 682 |
foreach ( $admins as $admin ) { |
| 683 |
$enrolled = $this->is_user_enrolled( $admin->ID, $method ); |
| 684 |
if ( $enrolled ) { |
| 685 |
$enrolled_count++; |
| 686 |
} else { |
| 687 |
$unenrolled[] = $admin->user_login; |
| 688 |
} |
| 689 |
} |
| 690 |
|
| 691 |
$total = count( $admins ); |
| 692 |
$args['data'] = array( |
| 693 |
'total' => $total, |
| 694 |
'enrolled' => $enrolled_count, |
| 695 |
'unenrolled' => $unenrolled, |
| 696 |
'method' => $method, |
| 697 |
); |
| 698 |
|
| 699 |
if ( 0 === count( $unenrolled ) ) { |
| 700 |
$args['detail'] = sprintf( |
| 701 |
/* translators: %d: number of administrators with 2FA enrolled */ |
| 702 |
_n( '%d administrator has 2FA enrolled.', '%d administrators have 2FA enrolled.', $total, 'vigilante' ), |
| 703 |
$total |
| 704 |
); |
| 705 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 706 |
} |
| 707 |
|
| 708 |
$args['detail'] = sprintf( |
| 709 |
/* translators: 1: unenrolled count, 2: total admins, 3: comma-separated logins */ |
| 710 |
__( '%1$d of %2$d administrators do not have 2FA set up: %3$s', 'vigilante' ), |
| 711 |
count( $unenrolled ), |
| 712 |
$total, |
| 713 |
implode( ', ', array_slice( $unenrolled, 0, 5 ) ) |
| 714 |
); |
| 715 |
return count( $unenrolled ) === $total |
| 716 |
? Vigilante_SA_Check_Result::fail( $args ) |
| 717 |
: Vigilante_SA_Check_Result::warn( $args ); |
| 718 |
} |
| 719 |
|
| 720 |
private function check_vigilante_modules_off() { |
| 721 |
$args = array( |
| 722 |
'id' => 'vigilante_modules_off', |
| 723 |
'category' => self::SLUG, |
| 724 |
'max' => 2, |
| 725 |
'label' => __( 'Core Vigilant modules', 'vigilante' ), |
| 726 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'dashboard', 'vigilante-section-dashboard-modules' ), |
| 727 |
); |
| 728 |
|
| 729 |
$critical = array( 'firewall', 'login_security', 'file_integrity', 'security_headers' ); |
| 730 |
$off = array(); |
| 731 |
$module_names = array( |
| 732 |
'firewall' => __( 'Firewall', 'vigilante' ), |
| 733 |
'login_security' => __( 'Login Security', 'vigilante' ), |
| 734 |
'file_integrity' => __( 'File Integrity', 'vigilante' ), |
| 735 |
'security_headers' => __( 'Security Headers', 'vigilante' ), |
| 736 |
); |
| 737 |
|
| 738 |
foreach ( $critical as $mod ) { |
| 739 |
if ( ! $this->settings->is_module_enabled( $mod ) ) { |
| 740 |
$off[] = isset( $module_names[ $mod ] ) ? $module_names[ $mod ] : $mod; |
| 741 |
} |
| 742 |
} |
| 743 |
|
| 744 |
$args['data'] = array( 'off' => $off ); |
| 745 |
|
| 746 |
if ( empty( $off ) ) { |
| 747 |
$args['detail'] = __( 'Firewall, Login Security, File Integrity and Security Headers modules all detected as enabled.', 'vigilante' ); |
| 748 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 749 |
} |
| 750 |
|
| 751 |
$args['detail'] = sprintf( |
| 752 |
/* translators: %s: comma-separated module names */ |
| 753 |
__( 'Critical modules are disabled: %s. Re-enable them from the Dashboard.', 'vigilante' ), |
| 754 |
implode( ', ', $off ) |
| 755 |
); |
| 756 |
return count( $off ) >= 2 |
| 757 |
? Vigilante_SA_Check_Result::fail( $args ) |
| 758 |
: Vigilante_SA_Check_Result::warn( $args ); |
| 759 |
} |
| 760 |
|
| 761 |
private function check_audit_alerts_active() { |
| 762 |
$args = array( |
| 763 |
'id' => 'audit_alerts_active', |
| 764 |
'category' => self::SLUG, |
| 765 |
'max' => 2, |
| 766 |
'label' => __( 'Audit alerts configured', 'vigilante' ), |
| 767 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'activity-log', 'vigilante-section-audit-alerts' ), |
| 768 |
); |
| 769 |
|
| 770 |
// Alerts ride on top of Security Audit; with the module off there is |
| 771 |
// nothing to alert on, so the check does not apply. |
| 772 |
if ( ! $this->settings->is_module_enabled( 'activity_log' ) ) { |
| 773 |
$args['detail'] = __( 'Security Audit is disabled, so audit alerts do not apply. Enable Security Audit to use them.', 'vigilante' ); |
| 774 |
return Vigilante_SA_Check_Result::skip( $args ); |
| 775 |
} |
| 776 |
|
| 777 |
if ( ! class_exists( 'Vigilante_Audit_Alerts' ) ) { |
| 778 |
require_once VIGILANTE_INCLUDES_DIR . 'class-audit-alerts.php'; |
| 779 |
} |
| 780 |
|
| 781 |
$config = (array) $this->settings->get_section( 'audit_alerts' ); |
| 782 |
$immediate = Vigilante_Audit_Alerts::immediate_is_active( $config ); |
| 783 |
$threshold = Vigilante_Audit_Alerts::threshold_is_active( $config ); |
| 784 |
|
| 785 |
$args['data'] = array( |
| 786 |
'immediate' => $immediate, |
| 787 |
'threshold' => $threshold, |
| 788 |
); |
| 789 |
|
| 790 |
if ( $immediate || $threshold ) { |
| 791 |
$active = array(); |
| 792 |
if ( $immediate ) { |
| 793 |
$active[] = __( 'immediate', 'vigilante' ); |
| 794 |
} |
| 795 |
if ( $threshold ) { |
| 796 |
$active[] = __( 'threshold', 'vigilante' ); |
| 797 |
} |
| 798 |
$args['detail'] = sprintf( |
| 799 |
/* translators: %s: comma-separated list of active alert types */ |
| 800 |
__( 'Audit alerts are active (%s). Important events will reach you by email.', 'vigilante' ), |
| 801 |
implode( ', ', $active ) |
| 802 |
); |
| 803 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 804 |
} |
| 805 |
|
| 806 |
$args['detail'] = __( 'No audit alerts are configured. Turn on immediate or threshold alerts so important events reach you by email.', 'vigilante' ); |
| 807 |
return Vigilante_SA_Check_Result::warn( $args ); |
| 808 |
} |
| 809 |
|
| 810 |
private function check_activity_log_errors() { |
| 811 |
$args = array( |
| 812 |
'id' => 'activity_log_errors', |
| 813 |
'category' => self::SLUG, |
| 814 |
'max' => 1, |
| 815 |
'label' => __( 'Critical activity in the last 24 hours', 'vigilante' ), |
| 816 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'activity-log', 'vigilante-section-audit-recent' ), |
| 817 |
); |
| 818 |
|
| 819 |
if ( ! $this->activity_log || ! method_exists( $this->activity_log, 'get_logs_count' ) ) { |
| 820 |
$args['detail'] = __( 'Activity log service not available for this scan.', 'vigilante' ); |
| 821 |
return Vigilante_SA_Check_Result::skip( $args ); |
| 822 |
} |
| 823 |
|
| 824 |
$since = gmdate( 'Y-m-d H:i:s', time() - DAY_IN_SECONDS ); |
| 825 |
$count_critical = (int) $this->activity_log->get_logs_count( |
| 826 |
array( |
| 827 |
'severity' => 'critical', |
| 828 |
'date_from' => $since, |
| 829 |
) |
| 830 |
); |
| 831 |
$count_high = (int) $this->activity_log->get_logs_count( |
| 832 |
array( |
| 833 |
'severity' => 'high', |
| 834 |
'date_from' => $since, |
| 835 |
) |
| 836 |
); |
| 837 |
$count = $count_critical + $count_high; |
| 838 |
$args['data'] = array( |
| 839 |
'count' => $count, |
| 840 |
'count_critical' => $count_critical, |
| 841 |
'count_high' => $count_high, |
| 842 |
); |
| 843 |
|
| 844 |
if ( 0 === $count ) { |
| 845 |
$args['detail'] = __( 'No high or critical events in the last 24 hours.', 'vigilante' ); |
| 846 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 847 |
} |
| 848 |
if ( $count <= 3 ) { |
| 849 |
$args['detail'] = sprintf( |
| 850 |
/* translators: %d: count */ |
| 851 |
_n( '%d high-severity event in the last 24 hours.', '%d high-severity events in the last 24 hours.', $count, 'vigilante' ), |
| 852 |
$count |
| 853 |
); |
| 854 |
return Vigilante_SA_Check_Result::warn( $args ); |
| 855 |
} |
| 856 |
|
| 857 |
$args['detail'] = sprintf( |
| 858 |
/* translators: %d: count */ |
| 859 |
__( '%d high or critical events in the last 24 hours. Review the audit log.', 'vigilante' ), |
| 860 |
$count |
| 861 |
); |
| 862 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 863 |
} |
| 864 |
|
| 865 |
private function check_file_integrity_status() { |
| 866 |
$args = array( |
| 867 |
'id' => 'file_integrity_status', |
| 868 |
'category' => self::SLUG, |
| 869 |
'max' => 1, |
| 870 |
'label' => __( 'File integrity scan', 'vigilante' ), |
| 871 |
'fix_link' => Vigilante_SA_Helpers::build_fix_url( 'file-integrity', 'vigilante-section-fi-last-scan' ), |
| 872 |
); |
| 873 |
|
| 874 |
$last = get_option( 'vigilante_last_integrity_results' ); |
| 875 |
if ( ! is_array( $last ) ) { |
| 876 |
$args['detail'] = __( 'No file integrity scan recorded yet. Run one from the File Integrity tab.', 'vigilante' ); |
| 877 |
return Vigilante_SA_Check_Result::skip( $args ); |
| 878 |
} |
| 879 |
|
| 880 |
$suspicious = isset( $last['suspicious'] ) ? count( (array) $last['suspicious'] ) : 0; |
| 881 |
$modified = isset( $last['modified'] ) ? count( (array) $last['modified'] ) : 0; |
| 882 |
|
| 883 |
$args['data'] = array( |
| 884 |
'suspicious' => $suspicious, |
| 885 |
'modified' => $modified, |
| 886 |
); |
| 887 |
|
| 888 |
if ( 0 === $suspicious && 0 === $modified ) { |
| 889 |
$args['detail'] = __( 'Last file integrity scan returned no suspicious or modified files.', 'vigilante' ); |
| 890 |
return Vigilante_SA_Check_Result::pass( $args ); |
| 891 |
} |
| 892 |
|
| 893 |
if ( $suspicious > 0 ) { |
| 894 |
$args['detail'] = sprintf( |
| 895 |
/* translators: %d: count */ |
| 896 |
_n( '%d suspicious file flagged by the last integrity scan.', '%d suspicious files flagged by the last integrity scan.', $suspicious, 'vigilante' ), |
| 897 |
$suspicious |
| 898 |
); |
| 899 |
return Vigilante_SA_Check_Result::fail( $args ); |
| 900 |
} |
| 901 |
|
| 902 |
$args['detail'] = sprintf( |
| 903 |
/* translators: %d: count */ |
| 904 |
_n( '%d modified file recorded by the last integrity scan — review in File Integrity.', '%d modified files recorded by the last integrity scan.', $modified, 'vigilante' ), |
| 905 |
$modified |
| 906 |
); |
| 907 |
return Vigilante_SA_Check_Result::warn( $args ); |
| 908 |
} |
| 909 |
|
| 910 |
/** |
| 911 |
* Whether the given user is enrolled in 2FA for the active method. |
| 912 |
* |
| 913 |
* @param int $user_id User ID. |
| 914 |
* @param string $method 'email' | 'totp'. |
| 915 |
* @return bool |
| 916 |
*/ |
| 917 |
private function is_user_enrolled( $user_id, $method ) { |
| 918 |
if ( 'totp' === $method ) { |
| 919 |
// TOTP stores enrollment in the database via Vigilante_Database->get_totp_data(). |
| 920 |
if ( class_exists( 'Vigilante_Database' ) ) { |
| 921 |
$database = new Vigilante_Database(); |
| 922 |
if ( method_exists( $database, 'get_totp_data' ) ) { |
| 923 |
$data = $database->get_totp_data( $user_id ); |
| 924 |
return is_array( $data ) && ! empty( $data['is_configured'] ); |
| 925 |
} |
| 926 |
} |
| 927 |
return false; |
| 928 |
} |
| 929 |
|
| 930 |
// For email 2FA, enrollment is implicit once the user has a verified email |
| 931 |
// and the global setting is on. We conservatively consider any admin enrolled |
| 932 |
// because email codes will be delivered on login. |
| 933 |
$user = get_userdata( $user_id ); |
| 934 |
return $user && ! empty( $user->user_email ) && is_email( $user->user_email ); |
| 935 |
} |
| 936 |
|
| 937 |
/** |
| 938 |
* Format octal permissions like "644". |
| 939 |
*/ |
| 940 |
private static function octal( $perm ) { |
| 941 |
return substr( sprintf( '%o', $perm ), -3 ); |
| 942 |
} |
| 943 |
} |
| 944 |
|
