sebres
8423f017e7
Merge branch 'sshd-ddos-mode-closed-preauth' into 0.10
7 years ago
sebres
4ee07adde6
Merge branch '0.10' into fix-sshd-filter-suff
...
# Conflicts resolved:
# fail2ban/server/filter.py
7 years ago
benrubson
30dc22fb2e
Detect Apache SNI error / misredirect attempts
7 years ago
sebres
4f6532f810
filter.d/sshd.conf: mode `ddos` (and `aggressive`) extended to catch `Connection closed by ... [preauth]`, so in DDOS mode it causes failure now on closed within preauth stage;
...
at least using both modes can ban port-scanners and prevent for other annoying "intruders", closing connection within preauth-stage (see gh-2085 for example).
7 years ago
sebres
cd7f1354c6
remove end-anchors for expressions that are precise enough (with clear flow, simple branches, without catch-all's, etc.)
7 years ago
sebres
c31eb1c562
quick optimization: normalizes pam-generic prefregex (more similar to the same regex within sshd-filter) + datepattern anchored now;
7 years ago
sebres
25cc42129a
hold all user names affected by interim attempts in order to avoid forget a failures after success login:
...
intruder (as legitimate user) firstly tries to login with another user-name (brute-force), so hopes to reset failure counter by succeeded login;
this is fixed and covered in tests now;
sshd-filter extended to cover multiple-login attempts (also fully implements gh-2070);
7 years ago
sebres
a9c94686b6
fixed multiple regexs matched
7 years ago
sebres
8028d3940d
amend with better match of optional suffix-groups;
...
remove end-anchors for expressions are precise enough (with clear flow, simple branches, without catch-all's, etc.);
7 years ago
sebres
66d2436f21
filter.d/sshd.conf: extend suffix with optional port, move it to `prefregex` at end outside of the content
7 years ago
sebres
7b3442c4e2
amend to 185cb998e7c7f2509830bed4a9f2fe6179f77e7b: capture error prefix outside of the failure content;
7 years ago
sebres
185cb998e7
make `prefregex` more precise in order to avoid catch the content for non failure lines
7 years ago
sebres
e8ffab28fb
filter.d/apache-noscript.conf: extended to match "Primary script unknown", got from php-fpm module.
7 years ago
sebres
a6fb33bdec
filter.d/recidive.conf: fixed if logging into systemd-journal (SYSLOG) with daemon name in prefix, gh-2069
7 years ago
Sergey G. Brester
b34ae5999e
action.d/hostdeny.conf: fixes IPv6 syntax
...
differentiate the IPv4 and IPv6 syntax (where it is enclosed in square brackets)
7 years ago
sebres
caa2bdfee6
amendment for gh-2061: it looks like the port was added here also
7 years ago
sebres
a3bcbe2d1b
backwards-compatibility, test-cases and ChangeLog update
7 years ago
MatthieuBarbu
6b5516b851
fix sshd rule #2
...
in line 58, rule don't match with "%(__suff)s" but work fine if I replace with "%(__on_port_opt)s"
Debian 9 stretch : fail2ban 0.10.3
7 years ago
sebres
1d7aa2ff21
filter.d/sshd.conf: rewrite fix (for new ssh log-format) backwards compatible + test-cases extended to cover both cases
7 years ago
MatthieuBarbu
9f5c873526
fix sshd rule
...
just remove the space before ":11" line 52 because don't match on my Debian 9 stretch...
I don't know if this is wrong on all OS
7 years ago
sebres
8c291cad38
filter.d/asterisk.conf: fixed failregex prefix by log over remote syslog server (gh-2060)
7 years ago
Ben RUBSON
b112250ef0
(Free)BSD IPFW does not allow 2 identical rules ( #2054 )
...
ipfw actionban fixed to allow same rule added several times (and actionunban to ignore error by deletion of missing rule)
7 years ago
Ben RUBSON
857767f04b
Add 'any' badips.py bancategory ( #2056 )
...
action.d/badips.py: allow `any` as bancategory to retrieve IPs from all categories
7 years ago
sebres
07fcb24ff6
Merge pull request #2057 from benrubson/https
...
Use httpS with badips
7 years ago
sebres
f52c67238a
action.d/badips.py: code review, ban command covered, debug log-messages, etc;
7 years ago
benrubson
fce2a50165
badips.py, solve a str() issue under FreeBSD
7 years ago
benrubson
e2665d39fd
Use httpS with badips
7 years ago
sebres
e636567d23
filter.d/exim.conf: failregex extended with SMTP call dropped: too many syntax or protocol errors.
7 years ago
sebres
19a5a2f8c0
filter.d/murmur.conf: fixed detection of failures reading from journal (systemd-backend only):
...
- extended with optional prefix for the systemd-journal (with second date-pattern as optional match);
- added `journalmatch` filtering;
closes gh-2043
7 years ago
sebres
0be0e43d47
amend to 03b577d7b92a120e325abe20a99b6956a7e0657c: add new-line after matches via tag `<br>` without usage of interim variable
7 years ago
sebres
03b577d7b9
action.d/blocklist_de.conf: fixed tag substitution (in 0.10 it can be variables supplied via shell-arguments), expand `<matches>` with trailing newline;
...
tests extended;
closes gh-2028
7 years ago
Yaroslav Halchenko
527bb9a7c3
dos2unix for helpers-common.conf
...
Original report: http://bugs.debian.org/888110
7 years ago
sebres
f69e28adfc
action.d/pf.conf: compatibility fix - recognizes that parameter `port` specified as empty, with or without braces (should be more backwards compatible to 0.9 now).
7 years ago
sebres
ed22ddbbbb
Merge remote-tracking branch 'remotes/gh-upstream/master' into 0.10
7 years ago
sebres
63e906b2c1
regex rewritten: a bit fewer vulnerable now and using non-capturing groups, test-cases extended in order to cover trying of injection on user name
7 years ago
Benedikt Seidl
fed6c49c2d
nginx-http-auth: match usernames with spaces
...
# Conflicts:
# ChangeLog
7 years ago
Sergey G. Brester
b6c6565a7e
regex updated using non-capturing groups
7 years ago
riceru
6a1bbbf101
Update lighttpd-auth.conf
...
I have lighttpd 1.4.45 (Debian 9) and auth error log is different.
Now printing mod_auth and not http_auth.
I think that the change was in Lighttp 1.4.42
7 years ago
sebres
2b7b0da943
Merge remote-tracking branch 'remotes/gh-upstream/master' into 0.10
7 years ago
Serg G. Brester
7e05976ead
action.d/hostsdeny.conf: actionunban rewritten using sed, also dots in IP were escaped now.
...
Closes #2000
7 years ago
sebres
2112145eb4
stop ban of legitimate users with multiple public keys (e. g. git, etc), thereby
...
differentiate between "invalid user" (going banned earlier) and valid users with public keys, for which the rejects of not valid public keys (failures) will be retarded up to "Too many authentication failures" resp. disconnect without success (accepted public key).
7 years ago
sebres
314e402fe0
filter.d/sendmail-auth.conf - extended daemon for Fedora 24/RHEL - the daemon name is "sendmail" (gh-1632)
7 years ago
sebres
c30144b37a
Merge branch '0.9' into 0.10
...
# Conflicts:
# config/action.d/firewallcmd-ipset.conf
# config/filter.d/asterisk.conf
# Merge-point after cherry-pick, no changes:
# fail2ban/client/jailreader.py
# fail2ban/helpers.py
7 years ago
sebres
131b94e11e
firewallcmd-ipset-allports: implemented in `action.d/firewallcmd-ipset.conf` now (`action.d/firewallcmd-ipset-allports.conf` removed), usage:
...
banaction = firewallcmd-ipset[actiontype="<allports>"]
7 years ago
Danila Vershinin
c190631f88
New ban action firewallcmd-ipset-allports. Closes #1167
7 years ago
Yannik Sembritzki
94f0b15c32
Allow faster parsing of hosts without ' characters in them
7 years ago
Yannik Sembritzki
b28dfb965a
Fix filter not catching asterisk requests with quote character in username ( fixes #2010 )
7 years ago
root
79f414c6a2
fix <family> typo
7 years ago
root
7c63eb2378
In the CentOS7 and epel environment, result of "firewall-cmd -direct -get -chains ipv4 filter" is displayed one line
...
Changed to be multiple lines with reference to firewallcmd-multiport.conf
7 years ago
sebres
6ccaa03e00
action.d/firewallcmd-ipset.conf: extended with actionflush to bulk unban resp. flush ipset
7 years ago
sebres
2712f72650
Merge remote-tracking branch 'master' into 0.10
7 years ago
sebres
e384acca5f
action.d/firewallcmd-ipset.conf: fixed create of set for ipv6 (missing `family inet6`)
7 years ago
Kevin Maradona
6c705d572b
filter.d/nginx-limit-req.conf: nginx limit-req log-level can be set to warn or error therefore having this regex will include both of them.
7 years ago
sebres
ffd6b9f6de
jail.conf: extended with new parameter `mode` for the filters supporting it;
7 years ago
sebres
2b68882502
filter.d/exim.conf: provides mode "aggressive" to ban flood resp. DDOS-similar failures;
...
Closes #1983
7 years ago
sebres
7f89fbc33f
Merge remote-tracking branch 'remotes/gh-upstream/master' into 0.10
7 years ago
Serg G. Brester
4f63180611
Avoid injection using quotes after `auth` command;
...
Added non-greedy fallback for quoted something (with lookahead simulated possessive greedy catch of non-quoted parts `[^"]*(?=")`).
Note that because host-info's are hereafter (with foreign input in-between), we would not use greedy or non-greedy catch-alls (`.*` or `.*?`) here (preventing performance losses).
7 years ago
Serg G. Brester
f59df2e156
Avoid any injecting on protocol (e. g. tries using camel-case)
...
The phrase "AUTH command used when not advertised" is precise enough as anchor here, so prevent by any foreign-input (any auth protocol error).
7 years ago
Peter Nowee
aa158ac05f
Exim failregex: Include lower/mixed case AUTH
...
When reporting the error `AUTH command used when not advertised`, Exim
starts with `SMTP protocol error in "........."`. Here, Exim logs the
SMTP command as it was provided by the connecting client.
https://github.com/Exim/exim/blob/exim-4_89+fixes/src/src/smtp_in.c#L2850
According to RFC 5321 (SMTP) "[..] a command verb [..] MAY be encoded
in upper case, lower case, or any mixture of upper and lower case with
no impact on its meaning."
https://tools.ietf.org/html/rfc5321#section-2.4
Lower case `auth login` brute-force attempts were seen in the wild and
were not caught by the current failregex.
This commit makes the failregex case-insensitive for the `AUTH`
command, so that lower case (`auth`) or mixed case (`aUtH`) now also
match. The failregex was already case-insensitive for the command
arguments (e.g. `AUTH login` already matched).
7 years ago
SlowRiot
660d57e6ba
updating my email address
7 years ago
sebres
76f2865883
implemented new action "action.d/nginx-block-map.conf", used in order to ban not IP-related tickets via nginx (session blacklisting in nginx-location with map-file);
7 years ago
sebres
f31195a4fc
added new logtarget "SYSOUT" to log from fail2ban working in foreground as systemd-service (in opposite to "STDOUT" don't log time-stamps).
7 years ago
sebres
159957ab88
filter.d/sshd.conf: extended failregex for modes "extra"/"aggressive": now finds all possible (also future) forms of "no matching (cipher|mac|MAC|compression method|key exchange method|host key type) found", see "ssherr.c" for all possible SSH_ERR_..._ALG_MATCH errors;
...
obsolete (multi-line buffered) variant extended also.
Closes gh-1943, gh-1944
7 years ago
sebres
7e756da2b9
Merge remote-tracking branch 'remotes/gh-upstream/master' into 0.10
7 years ago
sebres
eba68a8f37
config/paths-common.conf: Added initial values for `syslog_authpriv`, `syslog_mail` in order to avoid errors while parsing/interpolating configuration;
...
Note the systemd-backend does not need the logpath at all;
Some defaults normalized (minimized configs, don't need to overwrite values in distribution-related path if equal).
7 years ago
Serg G. Brester
9876dd44f9
replace port imap3 with imap everywhere, since imap3 is not a standard port and old rarely (if ever) used and missing on some systems
...
(see gh-1942)
7 years ago
Jeff Potter
4a2fc8b7e8
Include imap (port 143) in courier-auth ports
...
imap was missing from the list of ports, preventing fail2ban from blocking connections on standard IMAP port 143.
7 years ago
sebres
b615a98540
jail.conf: avoid overwriting of default value of the parameter `chain` of several actions (where default chain != INPUT);
...
test-cases extended to cover the same logic (use `<known/chain>` instead of fix value `INPUT`);
Closes gh-1949
7 years ago
Serg G. Brester
e07a8cda07
Update jail.conf
...
Documentation of parameters for action blocklist_de, closes gh-1940
7 years ago
Serg G. Brester
1a8fb6290d
Merge pull request #1926 from sebres/0.10-pf-actionflush
...
action.d/pf.conf: wildcard anchoring example + bulk-unban with command `actionflush`
7 years ago
sebres
0e66e3cc57
Merge branch 'master' into 0.10
...
# Conflicts:
# config/filter.d/asterisk.conf
7 years ago
Michael Newton
d5d1fe679f
Remove invalid regex
...
Resolves #1927
7 years ago
sebres
a1b863fcf6
action.d/pf.conf: extended with bulk-unban, command `actionflush` in order to flush all bans at once (by stop jail, resp. shutdown of fail2ban)
7 years ago
sebres
8726c9fb0a
pf.conf: enclose ports in braces, multiple ports expecting this syntax `... any port {http, https}`.
...
Note this would be backwards-incompatible change (for the people already enclosing multiports in braces in jail.local).
closes gh-1915
7 years ago
Łukasz Wąsikowski
a4f94d2619
Update pf.conf
...
Fix comment, because current one won't work:
cat /etc/pf.conf
anchor f2b {
sshd
}
# service pf reload
Reloading pf rules.
/etc/pf.conf:2: syntax error
New version:
cat /etc/pf.conf
anchor f2b {
anchor sshd
}
# service pf reload
Reloading pf rules.
7 years ago
Harry Wood
ea1b663f85
typo
...
spell "positive" (...but also somebody should finish this sentence)
7 years ago
sebres
e71f16f6ba
Merge branch 'master' into 0.10
...
# Conflicts resolved:
# config/filter.d/dovecot.conf
7 years ago
sebres
ea36e1b3fc
filter.d/dovecot.conf: fixed failregex to recognize pam_authenticate failures with "Permission denied" (gh-1897)
7 years ago
sebres
8c804a2290
Merge branch 'master' into 0.10
...
# Conflicts resolved:
# config/filter.d/postfix-rbl.conf
# config/filter.d/postfix-sasl.conf
# config/filter.d/postfix.conf
# fail2ban/tests/files/logs/postfix-sasl
7 years ago
sebres
a2120a9de5
filter.d/postfix-*.conf - added optional port regex (closes gh-1902)
7 years ago
Louis Sautier
152c9d27d5
Fix nftables actions for IPv6 addresses, fixes #1893
...
* add [Init?family=inet6] to nftables-common.conf and make nftable
expressions more modular
* change "ip protocol" to "meta l4proto" in nftables-allports.conf
since the former only works for IPv4
7 years ago
sebres
b185e7cb04
Merge remote-tracking branch 'upstream/master' into 0.10
7 years ago
Serg G. Brester
fd83260bd8
jail "pass2allow-ftp" should supply blocktype to action
...
closes gh-1884
7 years ago
Serg G. Brester
bb97e66627
Merge pull request #1882 from coderua/patch-1
...
Add Jorgee Vulnerability Scanner protect
7 years ago
Serg G. Brester
2cd02b731b
filter.d/exim.conf: fixed failregex for case of `D=0s`
...
Closes gh-1886
7 years ago
sebres
4bc226a692
optimized regex
7 years ago
Vladimir Chumak
fafefc0293
Add Jorgee Vulnerability Scanner protect
...
Details for Jorgee Vulnerability Scanner: https://www.symantec.com/security_response/attacksignatures/detail.jsp?asid=30164
7 years ago
sebres
4163f32968
small review, prefix replaced with `%(_apache_error_client)s` from apache-common.conf include
7 years ago
john
ac95449bbb
changed zoneminder regex as per Sebres and yarikoptic recommendations
7 years ago
john
7013729a1f
removed redundant options for zoneminder from jail.conf
7 years ago
john
5c3a666380
fixed incomplete regex after adding anchors
7 years ago
john
3d45fd2713
implemented yarikoptic's suggestions in fail2ban pull request #1376
7 years ago
john
08878d22dd
added zoneminder.conf filter
7 years ago
john
a90f6c4ae8
added zoneminder jail and filter
...
# Conflicts:
# config/jail.conf
7 years ago
sebres
c312962029
filter.d/dovecot.conf: partially cherry-pick to 0.9 PR #1880 from sebres/0.10-fix-dovecot-regex ( d926e11a5c
)
...
fixed failregex (without new mode aggressive)
7 years ago
sebres
2cfc53c08e
remove capturing groups
7 years ago
sebres
9b8563f35e
- fixes regex for message `imap-login: Disconnected (auth failed, X attempts) ...` has to many variations on additional info after `<HOST>`,
...
leave it end-anchored because variable part `user=<[^>]*>` (before `<HOST>`) to avoid injecting, but can be safe rewritten using `[^>]*` in opposite to "greedy" `user=<[^>]*>`.
- introduces mode `aggressive` and extends regex for this mode to match:
* no auth attempts (previously removed in gh-601, because of lots of false positives on misconfigured MTAs)
* disconnected before auth was ready
* client didn't finish SASL auth
7 years ago
Serg G. Brester
a287d0a05c
Merge pull request #1872 from kmzby/master
...
Added filter for phpMyAdmin+syslog
7 years ago
Pavel Mihadyuk
4c1abe1cbf
phpmyadmin-syslog: removed excess file, fixed test, updated failregex
7 years ago
Pavel Mihadyuk
d09304b897
phpmyadmin-syslog: added default jail config
7 years ago