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Merge pull request #4016 from nabbi/dovecot-2.4 

add Dovecot 2.4 support
pull/3806/merge
Sergey G. Brester 2025-06-15 18:09:40 +02:00 committed by GitHub
parent cfa3356e0f 8a4f373617
commit 9ef134c17d
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3 changed files with 9 additions and 1 deletions
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1
ChangeLog
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@ -81,6 +81,7 @@ ver. 1.1.1-dev-1 (20??/??/??) - development nightly edition
e. g. would also accept `chain = INPUT,FORWARD` (gh-3909)
* `action.d/firewallcmd-rich-*.conf` - fixed incorrect quoting, disabling port variable expansion
by substitution of rich rule (gh-3815)
* `filter.d/dovecot.conf` - add support for latest Dovecot 2.4 release (gh-4016)
* `filter.d/proxmox.conf` - add support to Proxmox Web GUI (gh-2966)
* `filter.d/openvpn.conf` - new filter and jail for openvpn recognizing failed TLS handshakes (gh-2702)
* `filter.d/vaultwarden.conf` - new filter and jail for Vaultwarden (gh-3979)

3
config/filter.d/dovecot.conf
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@ -16,7 +16,7 @@ _bypass_reject_reason = (?:: (?:\w+\([^\):]*\) \w+|[^\(]+))*
prefregex = ^%(__prefix_line)s(?:%(_auth_worker)s(?:\([^\)]+\))?: )?(?:%(__pam_auth)s(?:\(dovecot:auth\))?: |(?:pop3|imap|managesieve|submission)-login: )?(?:Info: )?%(_auth_worker_info)s<F-CONTENT>.+</F-CONTENT>$
failregex = ^authentication failure; logname=<F-ALT_USER1>\S*</F-ALT_USER1> uid=\S* euid=\S* tty=dovecot ruser=<F-USER>\S*</F-USER> rhost=<HOST>(?:\s+user=<F-ALT_USER>\S*</F-ALT_USER>)?\s*$
^(?:Aborted login|Disconnected|Remote closed connection|Client has quit the connection)%(_bypass_reject_reason)s \((?:auth failed, \d+ attempts(?: in \d+ secs)?|tried to use (?:disabled|disallowed) \S+ auth|proxy dest auth failed)\):(?: user=<<F-USER>[^>]*</F-USER>>,)?(?: method=\S+,)? rip=<HOST>(?:[^>]*(?:, session=<\S+>)?)\s*$
^(?:Login aborted|Aborted login|Disconnected|Remote closed connection|Client has quit the connection)%(_bypass_reject_reason)s \((?:auth failed, \d+ attempts(?: in \d+ secs)?|tried to use (?:disabled|disallowed) \S+ auth|proxy dest auth failed)\)(?: \(auth_failed\))?:(?: user=<<F-USER>[^>]*</F-USER>>,)?(?: method=\S+,)? rip=<HOST>(?:[^>]*(?:, session=<\S+>)?)\s*$
^pam\(\S+,<HOST>(?:,\S*)?\): pam_authenticate\(\) failed: (?:User not known to the underlying authentication module: \d+ Time\(s\)|Authentication failure \([Pp]assword mismatch\?\)|Permission denied)\s*$
^[a-z\-]{3,15}\(\S*,<HOST>(?:,\S*)?\): (?:[Uu]nknown user|[Ii]nvalid credentials|[Pp]assword mismatch)
<mdre-<mode>>
@ -43,6 +43,7 @@ datepattern = {^LN-BEG}TAI64N
# DEV Notes:
# * the first regex is essentially a copy of pam-generic.conf
# * Probably doesn't do dovecot sql/ldap backends properly (resolved in edit 21/03/2016)
# * Dovecot version 2.4 changed event log structure, line prior needed to maintain 2.3 support
#
# Author: Martin Waschbuesch
# Daniel Black (rewrote with begin and end anchors)

6
fail2ban/tests/files/logs/dovecot
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@ -22,6 +22,12 @@ Jun 14 00:48:21 platypus dovecot: imap-login: Disconnected (auth failed, 1 attem
# failJSON: { "time": "2005-06-23T00:52:43", "match": true , "host": "193.95.245.163" }
Jun 23 00:52:43 vhost1-ua dovecot: pop3-login: Disconnected: Inactivity (auth failed, 1 attempts): user=<info>, method=PLAIN, rip=193.95.245.163, lip=176.214.13.210
# Dovecot version 2.4
# failJSON: { "time": "2005-06-12T19:07:29", "match": true , "host": "192.0.2.241" }
Jun 12 19:07:29 hostname dovecot[241]: imap-login: Login aborted: Connection closed (auth failed, 3 attempts in 16 secs) (auth_failed): user=<test>, method=PLAIN, rip=192.0.2.241, lip=203.0.113.104, TLS, session=<9ZHq02g3J8S60fan>
# failJSON: { "time": "2005-06-13T16:35:56", "match": true , "host": "192.0.2.241" }
Jun 13 16:35:56 mx dovecot[241]: managesieve-login: Login aborted: Logged out (auth failed, 1 attempts in 10 secs) (auth_failed): user=<user@domain>, method=PLAIN, rip=192.0.2.241, lip=203.0.113.104, TLS, session=<Dp8j1Ho3suQYdo+k>
# failJSON: { "time": "2005-07-02T13:49:31", "match": true , "host": "192.51.100.13" }
Jul 02 13:49:31 hostname dovecot[442]: pop3-login: Aborted login (auth failed, 1 attempts in 17 secs): user=<test>, method=PLAIN, rip=192.51.100.13, lip=203.0.113.17, session=<YADINsQCDs5BH8Pg>