3

Is there a way to set up fail to ban to block on IP that hits wp-login too many times?

I have tried adding this jail.local:

[apache-wp-login]

enabled = true
action   = iptables[name=wplogin, port=http, protocol=tcp]
           sendmail-whois[name=wplogin, dest=root, sender=fail2ban@example.com]
filter  = apache-wp-login
logpath = /var/log/apache2/other_vhosts_access.log
maxretry = 5

And then adding a definition in /etc/fail2ban/filter.d/apache-wp-login.conf:

[Definition]

# Option:  failregex
# Notes.:  Regexp to catch Apache dictionary attacks on Wordpress wp-login
# Values:  TEXT
#
failregex = [\w\.\-]+ [\w\.\-]+ .*] "POST /wp-login.php

Still getting wp-login attempts way over the maxentry limit... could this be because I'm using combined log format, instead of common?

3

I modified my WordPress theme functions.php file to add the following:

add_action('wp_login_failed', 'log_wp_login_fail'); // hook failed login function log_wp_login_fail($username) { error_log("WP login failed for username: $username"); }

Failed login are now written in my error logs.

My apache-wp-config.conf looks like this: [Definition] failregex = [[]client <HOST>[]] WP login failed.* ignoreregex =

And my jail.local contains the following: [apache-wp-login] enabled = true filter = apache-wp-login action = iptables-multiport[name=apache-wp-login, port="http,https"] sendmail-whois[name=apache-wp-login, dest=root, sender=fail2ban@example.com] logpath = /home/*/logs/*error.log bantime = 720 maxretry = 6

More info at this site

  • awesome, I will give this method a shot, and let you know how it works out :) – Alex Douglas Jul 22 '14 at 19:00
  • my log directory structure is /var/log/error.log. Using your method, would I use logpath = /var/*/log/*error.log? – Alex Douglas Jul 23 '14 at 7:03
  • If you have only one error log then just use logpath = /var/log/error.log – qux Jul 23 '14 at 17:05
  • Well, this method seems to be working for me :) I'm now getting emails from fail2ban informing me when an IP address is blocked. Thank you! – Alex Douglas Jul 23 '14 at 23:33

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