openSUSE Security Update : fail2ban (openSUSE-SU-2014:0348-1)

Medium Nessus Plugin ID 75283


The remote openSUSE host is missing a security update.


The fail2ban tool was updated to version 0.8.12 to fix various security issues and also brings bugfixes and features.

Security issues fixed: A remote unauthenticated attacker may cause arbitrary IP addresses to be blocked by Fail2ban causing legitimate users to be blocked from accessing services protected by Fail2ban.
CVE-2013-7177 (cyrus-imap) and CVE-2013-7176 (postfix)

- Use new flushlogs syntax after logrotate

- Update to version 0.8.12

- Log rotation can now occur with the command 'flushlogs' rather than reloading fail2ban or keeping the logtarget settings consistent in jail.conf/local and /etc/logrotate.d/fail2ban. (dep#697333, rh#891798).

- Added ignorecommand option for allowing dynamic determination as to ignore and IP or not.

- Remove indentation of name and loglevel while logging to SYSLOG to resolve syslog(-ng) parsing problems.
(dep#730202). Log lines now also report '[PID]' after the name portion too.

- Epoch dates can now be enclosed within []

- New actions: badips, firewallcmd-ipset, ufw, blocklist_de

- New filters: solid-pop3d, nsd, openwebmail, horde, freeswitch, squid, ejabberd, openwebmail, groupoffice

- Filter improvements :

- apache-noscript now includes php cgi scripts

- exim-spam filter to match spamassassin log entry for option SAdevnull.

- Added to sshd filter expression for 'Received disconnect from : 3: Auth fail'

- Improved ACL-handling for Asterisk

- Added improper command pipelining to postfix filter.

- General fixes :

- Added lots of jail.conf entries for missing filters that creaped in over the last year.

- synchat changed to use push method which verifies whether all data was send. This ensures that all data is sent before closing the connection.

- Fixed python 2.4 compatibility (as sub-second in date patterns weren't 2.4 compatible)

- Complain/email actions fixed to only include relevant IPs to reporting

- Filter fixes :

- Added HTTP referrer bit of the apache access log to the apache filters.

- Apache 2.4 perfork regexes fixed

- Kernel syslog expression can have leading spaces

- allow for ',milliseconds' in the custom date format of proftpd.log

- recidive jail to block all protocols

- smtps not a IANA standard so may be missing from /etc/services. Due to (still) common use 465 has been used as the explicit port number

- Filter dovecot reordered session and TLS items in regex with wider scope for session characters

- Ugly Fixes (Potentially incompatible changes) :

- Unfortunately at the end of last release when the action firewall-cmd-direct-new was added it was too long and had a broken action check. The action was renamed to firewallcmd-new to fit within jail name name length.

- Last release added mysqld-syslog-iptables as a jail configuration. This jailname was too long and it has been renamed to mysqld-syslog.

- Fixed formating of github references in changelog

- reformatted spec-file

- Update to version 0.8.11

- In light of CVE-2013-2178 that triggered our last release we have put a significant effort into tightening all of the regexs of our filters to avoid another similar vulnerability. We haven't examined all of these for a potential DoS scenario however it is possible that another DoS vulnerability exists that is fixed by this release. A large number of filters have been updated to include more failure regexs supporting previously unbanned failures and support newer application versions too. We have test cases for most of these now however if you have other examples that demonstrate that a filter is insufficient we welcome your feedback. During the tightening of the regexs to avoid DoS vulnerabilities there is the possibility that we have inadvertently, despite our best intentions, incorrectly allowed a failure to continue.

Addresses a possible DoS. Closes gh#fail2ban/fail2ban#248, bnc#824710 within [Init].
Closes gh#fail2ban/fail2ban#232

- Updates to asterisk filter. Closes gh#fail2ban/fail2ban#227, gh#fail2ban/fail2ban#230.

- Updates to asterisk to include AUTH_UNKNOWN_DOMAIN.
Closes gh#fail2ban/fail2ban#244. on Fedora. Closes gh#fail2ban/fail2ban#112. Thanks to Camusensei for the bug report. insight. Closes gh#fail2ban/fail2ban#103.

- [f2156604] pyinotify -- monitor IN_MOVED_TO events.
Closes gh#fail2ban/fail2ban#184. Thanks to Jon Foster for report and troubleshooting. Orion Poplawski

- [39667ff6] Avoid leaking file descriptors. Closes gh#fail2ban/fail2ban#167. Closes gh#fail2ban/fail2ban#147, gh#fail2ban/fail2ban#148.

- [b6a68f51] Fix delaction on server side. Closes gh#fail2ban/fail2ban#124. the fail2ban-client. Closes gh#fail2ban/fail2ban#134. gh#fail2ban/fail2ban#70.
Thanks to iGeorgeX for the idea.

- [96eb8986] ' and ' should also be escaped in action tags Closes gh#fail2ban/fail2ban#109 beilber for the idea.
Closes gh#fail2ban/fail2ban#114. fail2ban is running.
Closes gh#fail2ban/fail2ban#166.

- [29d0df5] Add mysqld filter. Closes gh#fail2ban/fail2ban#152.

- [bba3fd8] Add Sogo filter. Closes gh#fail2ban/fail2ban#117.

- [be06b1b] Add action for iptables-ipsets. Closes gh#fail2ban/fail2ban#102.

- [f336d9f] Add filter for webmin. Closes gh#fail2ban/fail2ban#99. consistently. Closes gh#fail2ban/fail2ban#172.

- [b36835f] Add get cinfo to fail2ban-client. Closes gh#fail2ban/fail2ban#124. Closes gh#fail2ban/fail2ban#142. Closes gh#fail2ban/fail2ban#126. Bug report by Michael Heuberger.

- [3aeb1a9] Add jail.conf manual page. Closes gh#fail2ban/fail2ban#143. banning due to misconfigured DNS. Close gh#fail2ban/fail2ban#64

- [0935566,5becaf8] Various python 2.4 and 2.5 compatibility fixes. Close gh#fail2ban/fail2ban#83 in the console. Close gh#fail2ban/fail2ban#91 the log file to take 'banip' or 'unbanip' in effect. Close gh#fail2ban/fail2ban#81, gh#fail2ban/fail2ban#86

- [f52ba99] downgraded 'already banned' from WARN to INFO level. Closes gh#fail2ban/fail2ban#79 for this gh#fail2ban/fail2ban#87) message stays non-unicode.
Close gh#fail2ban/fail2ban#32 friend to developers stuck with Windows (Closes gh#fail2ban/fail2ban#66) repeated offenders. Close gh#fail2ban/fail2ban#19 Close gh#fail2ban/fail2ban#47 (Closes: #669063)


Update the affected fail2ban package.

See Also

Plugin Details

Severity: Medium

ID: 75283

File Name: openSUSE-2014-194.nasl

Version: $Revision: 1.1 $

Type: local

Agent: unix

Published: 2014/06/13

Modified: 2014/06/13

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:fail2ban, cpe:/o:novell:opensuse:12.3, cpe:/o:novell:opensuse:13.1

Required KB Items: Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list

Patch Publication Date: 2014/02/28

Reference Information

CVE: CVE-2013-2178, CVE-2013-7176, CVE-2013-7177