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consider CONNECT and other rejected commands as a valid `_pref`;

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closes gh-3800
pull/3808/head
sebres 4 months ago
parent 766d2b8d74
commit 93810fff75
3 changed files with 5 additions and 1 deletions
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1
ChangeLog
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@ -21,6 +21,7 @@ ver. 1.1.1-dev-1 (20??/??/??) - development nightly edition
* `action.d/firewallcmd-ipset.conf`: * `action.d/firewallcmd-ipset.conf`:
- rename `ipsettype` to `ipsetbackend` (gh-2620), parameter `ipsettype` will be used now to the real set type (gh-3760) - rename `ipsettype` to `ipsetbackend` (gh-2620), parameter `ipsettype` will be used now to the real set type (gh-3760)
* `filter.d/apache-overflows.conf` - consider AH10244: invalid URI path (gh-3778) * `filter.d/apache-overflows.conf` - consider AH10244: invalid URI path (gh-3778)
* `filter.d/postfix.conf` - consider CONNECT and other rejected commands as a valid `_pref` (gh-3800)
* `filter.d/recidive.conf` - restore possibility to set jail name in the filter, _jailname is positive now (gh-3769) * `filter.d/recidive.conf` - restore possibility to set jail name in the filter, _jailname is positive now (gh-3769)
* `filter.d/sshd.conf` - adapted to conform possible new daemon name sshd-session, since OpenSSH 9.8 * `filter.d/sshd.conf` - adapted to conform possible new daemon name sshd-session, since OpenSSH 9.8
several log messages will be tagged with as originating from a process named "sshd-session" rather than "sshd" (gh-3782) several log messages will be tagged with as originating from a process named "sshd-session" rather than "sshd" (gh-3782)

2
config/filter.d/postfix.conf
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@ -12,7 +12,7 @@ before = common.conf
_daemon = postfix(-\w+)?/[^/\[:\s]+(?:/smtp[ds])? _daemon = postfix(-\w+)?/[^/\[:\s]+(?:/smtp[ds])?
_port = (?::\d+)? _port = (?::\d+)?
_pref = [A-Z]{4} _pref = [A-Z]{4,}
prefregex = ^%(__prefix_line)s<mdpr-<mode>> <F-CONTENT>.+</F-CONTENT>$ prefregex = ^%(__prefix_line)s<mdpr-<mode>> <F-CONTENT>.+</F-CONTENT>$

3
fail2ban/tests/files/logs/postfix
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@ -70,6 +70,9 @@ Jun 12 08:58:35 xxx postfix/smtpd[13533]: improper command pipelining after AUTH
# failJSON: { "time": "2005-05-05T15:51:11", "match": true , "host": "216.245.194.173", "desc": "postfix postscreen / gh-1764" } # failJSON: { "time": "2005-05-05T15:51:11", "match": true , "host": "216.245.194.173", "desc": "postfix postscreen / gh-1764" }
May 5 15:51:11 xxx postfix/postscreen[1148]: NOQUEUE: reject: RCPT from [216.245.194.173]:60591: 550 5.7.1 Service unavailable; client [216.245.194.173] blocked using rbl.example.com; from=<spammer@example.com>, to=<goodguy@example.com>, proto=ESMTP, helo=<badguy.example.com> May 5 15:51:11 xxx postfix/postscreen[1148]: NOQUEUE: reject: RCPT from [216.245.194.173]:60591: 550 5.7.1 Service unavailable; client [216.245.194.173] blocked using rbl.example.com; from=<spammer@example.com>, to=<goodguy@example.com>, proto=ESMTP, helo=<badguy.example.com>
# failJSON: { "time": "2005-06-01T19:00:55", "match": true , "host": "192.0.2.114", "desc": "postfix client restriction / gh-3800" }
Jun 1 19:00:55 mail postfix/smtpd[7749]: NOQUEUE: reject: CONNECT from unknown[192.0.2.114]: 450 4.7.25 Client host rejected: cannot find your hostname, [178.215.236.114]; proto=SMTP
# failJSON: { "time": "2005-06-03T06:25:43", "match": true , "host": "192.0.2.11", "desc": "too many errors / gh-2439" } # failJSON: { "time": "2005-06-03T06:25:43", "match": true , "host": "192.0.2.11", "desc": "too many errors / gh-2439" }
Jun 3 06:25:43 srv postfix/smtpd[29306]: too many errors after RCPT from example.com[192.0.2.11] Jun 3 06:25:43 srv postfix/smtpd[29306]: too many errors after RCPT from example.com[192.0.2.11]

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