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Merge pull request #269 from grooverdan/asterisk 

ENH: filter.d/asterisk - consolidate log prefix regex and add a few fail messages
pull/278/merge
Yaroslav Halchenko 2013-07-02 07:04:10 -07:00
parent 54cce29b3e 0086a7edab
commit f0f237fa05
4 changed files with 25 additions and 13 deletions
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2
ChangeLog
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@ -25,6 +25,8 @@ ver. 0.8.11 (2013/XX/XXX) - wanna-be-released
Daniel Black & Georgiy Mernov & ftoppi
* filter.d/exim.conf -- regex hardening and extra failure examples in
sample logs
Daniel Black & Sebastian Arcus
* filter.d/asterisk -- more regexes
Yaroslav Halchenko
* fail2ban-regex -- refactored to provide more details (missing and
ignored lines, control over logging, etc) while maintaining look&feel

1
THANKS
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@ -41,6 +41,7 @@ Raphaël Marichez
René Berber
Robert Edeker
Russell Odom
Sebastian Arcus
Sireyessire
silviogarbes
Stephen Gildea

29
config/filter.d/asterisk.conf
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@ -17,19 +17,22 @@ before = common.conf
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = ^\[\]\s*NOTICE%(__pid_re)s \S+: Registration from '[^']*' failed for '<HOST>(:\d+)?' - Wrong password$
^\[\]\s*NOTICE%(__pid_re)s \S+: Registration from '[^']*' failed for '<HOST>(:\d+)?' - No matching peer found$
^\[\]\s*NOTICE%(__pid_re)s \S+: Registration from '[^']*' failed for '<HOST>(:\d+)?' - Username/auth name mismatch$
^\[\]\s*NOTICE%(__pid_re)s \S+: Registration from '[^']*' failed for '<HOST>(:\d+)?' - Device does not match ACL$
^\[\]\s*NOTICE%(__pid_re)s \S+: Registration from '[^']*' failed for '<HOST>(:\d+)?' - Peer is not supposed to register$
^\[\]\s*NOTICE%(__pid_re)s \S+: Registration from '[^']*' failed for '<HOST>(:\d+)?' - ACL error \(permit/deny\)$
^\[\]\s*NOTICE%(__pid_re)s \S+: Registration from '[^']*' failed for '<HOST>(:\d+)?' - Not a local domain$
^\[\]\s*NOTICE%(__pid_re)s\[\S+\] \S+: Call from '[^']*' \(<HOST>:\d+\) to extension '\d+' rejected because extension not found in context 'default'\.$
^\[\]\s*NOTICE%(__pid_re)s \S+: Host <HOST> failed to authenticate as '[^']*'$
^\[\]\s*NOTICE%(__pid_re)s \S+: No registration for peer '[^']*' \(from <HOST>\)$
^\[\]\s*NOTICE%(__pid_re)s \S+: Host <HOST> failed MD5 authentication for '[^']*' \([^)]+\)$
^\[\]\s*NOTICE%(__pid_re)s \S+: Failed to authenticate user [^@]+@<HOST>\S*$
^\[\]\s*SECURITY%(__pid_re)s \S+: SecurityEvent="InvalidAccountID",EventTV="[\d-]+",Severity="[\w]+",Service="[\w]+",EventVersion="\d+",AccountID="\d+",SessionID="0x[\da-f]+",LocalAddress="IPV[46]/(UD|TC)P/[\da-fA-F:.]+/\d+",RemoteAddress="IPV[46]/(UD|TC)P/<HOST>/\d+"$
log_prefix= \[\]\s*(?:NOTICE|SECURITY)%(__pid_re)s:?(?:\[\S+\d*\])? \S+:\d*
failregex = ^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - Wrong password$
^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - No matching peer found$
^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - Username/auth name mismatch$
^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - Device does not match ACL$
^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - Peer is not supposed to register$
^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - ACL error \(permit/deny\)$
^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - Not a local domain$
^%(log_prefix)s Call from '[^']*' \(<HOST>:\d+\) to extension '\d+' rejected because extension not found in context 'default'\.$
^%(log_prefix)s Host <HOST> failed to authenticate as '[^']*'$
^%(log_prefix)s No registration for peer '[^']*' \(from <HOST>\)$
^%(log_prefix)s Host <HOST> failed MD5 authentication for '[^']*' \([^)]+\)$
^%(log_prefix)s Failed to authenticate user [^@]+@<HOST>\S*$
^%(log_prefix)s (?:handle_request_subscribe: )?Sending fake auth rejection for (device|user) \d*<sip:[^@]+@<HOST>>;tag=\w+\S*$
^%(log_prefix)s SecurityEvent="(FailedACL|InvalidAccountID|ChallengeResponseFailed|InvalidPassword)",EventTV="[\d-]+",Severity="[\w]+",Service="[\w]+",EventVersion="\d+",AccountID="\d+",SessionID="0x[\da-f]+",LocalAddress="IPV[46]/(UD|TC)P/[\da-fA-F:.]+/\d+",RemoteAddress="IPV[46]/(UD|TC)P/<HOST>/\d+"$
# Option: ignoreregex
# Notes.: regex to ignore. If this regex matches, the line is ignored.

6
testcases/files/logs/asterisk
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@ -13,3 +13,9 @@
[2013-03-26 15:47:54] NOTICE[1237] chan_sip.c: Registration from '"100"sip:100@1.2.3.4' failed for '1.2.3.4:23930' - No matching peer found
[2013-05-13 07:10:53] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidAccountID",EventTV="1368439853-500975",Severity="Error",Service="SIP",EventVersion="1",AccountID="00972599580679",SessionID="0x7f8ecc0421f8",LocalAddress="IPV4/UDP/1.2.3.4/5060",RemoteAddress="IPV4/UDP/1.2.3.4/5070"
[2013-06-10 18:15:03] NOTICE[2723] chan_sip.c: Registration from '"100"<sip:100@192.168.0.2:5060>' failed for '1.2.3.4' - Not a local domain
# http://forum.4psa.com/showthread.php?t=6601
[2009-12-22 16:35:24] NOTICE[6163] chan_sip.c: Sending fake auth rejection for device <sip:0004*001@192.168.2.102>;tag=e3793a95e1acbc69o
# http://www.freepbx.org/forum/general-help/fake-auth-rejection
[2009-12-22 16:35:24] NOTICE[1570][C-00000086] chan_sip.c: Sending fake auth rejection for device 1022<sip:1022@192.168.2.102>;tag=5d8b6f92
# http://www.spinics.net/lists/asterisk/msg127381.html
[2009-12-22 16:35:24] NOTICE[14916]: chan_sip.c:15644 handle_request_subscribe: Sending fake auth rejection for user <sip:CS@192.168.2.102>;tag=6pwd6erg54