under some kind of attack
mj
lists at merit.unu.edu
Thu Jul 20 12:16:55 EEST 2017
Hi all,
If I may, one more question on this subject:
I would like to create a fail2ban filer, that scans for these lines:
> Jul 20 11:10:09 auth: Info: ldap(user1,60.166.35.162,<cDFXHbxUQgA8piOi>): invalid credentials (given password: password)
> Jul 20 11:10:19 auth: Info: ldap(user2,61.53.66.4,<V+nyHbxU+wA9NUIE>): invalid credentials (given password: password)
(as you can see, I have enabled auth_verbose_passwords to do this,
making me very uncomfortable...)
Anyway: since there are only a few password variations, I would like to
block anyone using those passwords.
(since the connections are over TLS/SSL, I cannot use iptables, as
suggested earlier)
So I need a specific fail2ban rule that extracts the <IP> from that
line, and matches on "(given password: password)"
Can anyone here help out with a failregex line that would match..?
More information about the dovecot
mailing list