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litespeed_wiki:config:xmlrpc.php_bot_attack_block [2018/03/29 19:07] Lisa Clarke Proofreading |
litespeed_wiki:config:xmlrpc.php_bot_attack_block [2024/07/10 19:21] (current) Lisa Clarke Redirect to new Documentation Site |
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| - | ====== How to Block xmlrpc.php Bot Attack ====== | + | ~~REDIRECT>https://docs.litespeedtech.com/lsws/security/#block-a-bot-attack~~ |
| - | Your server may experience heavy hits from a bot named [[http://law.di.unimi.it/BUbiNG.html#wc|BUbiNG]]. This may have caused a massive load spike in the server. To prevent further problems, we can deny that user agent globally. | + | |
| - | + | ||
| - | ===== Example 1 ===== | + | |
| - | An easy solution is to use a rewrite rule to detect the user agent, and then set environment with the action ''[E=blockbot]''. This will drop the direct connection from that client IP. | + | |
| - | + | ||
| - | Add the following to the ''.htaccess'' of the ''test.com'' domain: | + | |
| - | + | ||
| - | RewriteEngine On | + | |
| - | RewriteCond %{HTTP_USER_AGENT} "BUbiNG" | + | |
| - | RewriteRule .* - [E=blockbot:1] | + | |
| - | + | ||
| - | To verify, you can run: | + | |
| - | curl -A "BUbiNG" test.com | + | |
| - | + | ||
| - | If your rules need further debugging, you can enable rewrite log to check. | + | |
| - | + | ||
| - | ===== Example 2 ===== | + | |
| - | On a server, after configuring cPanel Piped Logging to push entries to ''/usr/local/apache/logs/error_log'', you can see many ''404 File not found [/var/www/html/xmlrpc.php]'' entries coming through. 404 will not trigger the LSWS WordPress protection feature, because the requests look like they're being processed by the default vhost. | + | |
| - | + | ||
| - | Locate the virtual host serving the requests, and add a vhost-level rewrite rule to drop the connection using ''[E=blockbot]''. | + | |
| - | + | ||
| - | RewriteRule ^/xmlrpc.php - [E=blockbot:1] | + | |
| - | + | ||
| - | **Note:** Do not apply the above at the server level since it will block //everyone// accessing ''xmlrpc.php'' globally. | + | |