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Code Issues Releases Wiki Activity

fail2ban should watch for managesieve logins too, fixes #1622

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Joshua Tauberer 2019-08-31 09:04:17 -04:00
parent 4971b63501
commit 46f64e0e0a
2 changed files with 4 additions and 3 deletions
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3
CHANGELOG.md
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@ -4,9 +4,10 @@ CHANGELOG
In Development In Development
-------------- --------------
Security fix: Security fixes:
* A security issue was discovered in rsync backups. If you have enabled rsync backups, the file `id_rsa_miab` may have been copied to your backup destination. This file can be used to access your backup destination. If the file was copied to your backup destination, we recommend that you delete the file on your backup destination, delete `/root/.ssh/id_rsa_miab` on your Mail-in-a-Box, then re-run Mail-in-a-Box setup, and re-configure your SSH public key at your backup destination according to the instructions in the Mail-in-a-Box control panel. * A security issue was discovered in rsync backups. If you have enabled rsync backups, the file `id_rsa_miab` may have been copied to your backup destination. This file can be used to access your backup destination. If the file was copied to your backup destination, we recommend that you delete the file on your backup destination, delete `/root/.ssh/id_rsa_miab` on your Mail-in-a-Box, then re-run Mail-in-a-Box setup, and re-configure your SSH public key at your backup destination according to the instructions in the Mail-in-a-Box control panel.
* Brute force attack prevention was missing for the managesieve service.
Setup: Setup:

4
conf/fail2ban/filter.d/dovecotimap.conf
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@ -1,4 +1,4 @@
# Fail2Ban filter Dovecot authentication and pop3/imap server # Fail2Ban filter Dovecot authentication and pop3/imap/managesieve server
# For Mail-in-a-Box # For Mail-in-a-Box
[INCLUDES] [INCLUDES]
@ -9,7 +9,7 @@ before = common.conf
_daemon = (auth|dovecot(-auth)?|auth-worker) _daemon = (auth|dovecot(-auth)?|auth-worker)
failregex = ^%(__prefix_line)s(pop3|imap)-login: (Info: )?(Aborted login|Disconnected)(: Inactivity)? \(((no auth attempts|auth failed, \d+ attempts)( in \d+ secs)?|tried to use (disabled|disallowed) \S+ auth)\):( user=<\S*>,)?( method=\S+,)? rip=<HOST>, lip=(\d{1,3}\.){3}\d{1,3}(, TLS( handshaking)?(: Disconnected)?)?(, session=<\S+>)?\s*$ failregex = ^%(__prefix_line)s(pop3|imap|managesieve)-login: (Info: )?(Aborted login|Disconnected)(: Inactivity)? \(((no auth attempts|auth failed, \d+ attempts)( in \d+ secs)?|tried to use (disabled|disallowed) \S+ auth)\):( user=<\S*>,)?( method=\S+,)? rip=<HOST>, lip=(\d{1,3}\.){3}\d{1,3}(, TLS( handshaking)?(: Disconnected)?)?(, session=<\S+>)?\s*$
ignoreregex = ignoreregex =