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Recognize "unknown user" for additional auth-methods (pam, passwd-file, ldap, sql, etc); simplifying regular expressions (put "unknown user" and "invalid credentials" together as one regex).

pull/1857/head^2
sebres 2017-08-07 17:50:55 +02:00
parent babb76cb3c
commit 5c538fb658
2 changed files with 4 additions and 2 deletions
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3
config/filter.d/dovecot.conf
View File

@ -12,8 +12,7 @@ _daemon = (auth|dovecot(-auth)?|auth-worker)
failregex = ^%(__prefix_line)s(?:%(__pam_auth)s(?:\(dovecot:auth\))?:)?\s+authentication failure; logname=\S* uid=\S* euid=\S* tty=dovecot ruser=\S* rhost=<HOST>(?:\s+user=\S*)?\s*$
^%(__prefix_line)s(?:pop3|imap)-login: (?:Info: )?(?:Aborted login|Disconnected)(?::(?: [^ \(]+)+)? \((?:auth failed, \d+ attempts( in \d+ secs)?|tried to use (disabled|disallowed) \S+ auth)\):( user=<[^>]*>,)?( method=\S+,)? rip=<HOST>(?:, lip=\S+)?(?:, TLS(?: handshaking(?:: SSL_accept\(\) failed: error:[\dA-F]+:SSL routines:[TLS\d]+_GET_CLIENT_HELLO:unknown protocol)?)?(: Disconnected)?)?(, session=<\S+>)?\s*$
^%(__prefix_line)s(?:Info|dovecot: auth\(default\)|auth-worker\(\d+\)): pam\(\S+,<HOST>\): pam_authenticate\(\) failed: (User not known to the underlying authentication module: \d+ Time\(s\)|Authentication failure \(password mismatch\?\))\s*$
^%(__prefix_line)s(?:auth|auth-worker\(\d+\)): (?:pam|passwd-file)\(\S+,<HOST>\): unknown user\s*$
^%(__prefix_line)s(?:auth|auth-worker\(\d+\)): Info: ldap\(\S*,<HOST>,\S*\): invalid credentials\s*$
^%(__prefix_line)s(?:auth|auth-worker\(\d+\)): (?:Info: )?[a-z\-]{3,15}\(\S*,<HOST>(?:,\S*)?\): (?:unknown user|invalid credentials)\s*$
ignoreregex =

3
fail2ban/tests/files/logs/dovecot
View File

@ -40,6 +40,9 @@ Jan 29 05:13:40 mail dovecot: auth-worker(31326): pam(username,1.2.3.4): unknown
# failJSON: { "time": "2005-01-29T05:13:50", "match": true , "host": "1.2.3.4" }
Jan 29 05:13:50 mail dovecot: auth: passwd-file(username,1.2.3.4): unknown user
# failJSON: { "time": "2005-01-29T13:54:06", "match": true , "host": "192.0.2.5" }
Jan 29 13:54:06 auth-worker(22401): Info: sql(admin@example.de,192.0.2.5,<n4JLdHNVngZGpV2j>): unknown user
# failJSON: { "time": "2005-04-19T05:22:20", "match": true , "host": "80.255.3.104" }
Apr 19 05:22:20 vm5 auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=informix rhost=80.255.3.104