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25 lines
1.6 KiB
25 lines
1.6 KiB
# Fail2Ban filter for asterisk authentication failures
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#
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[Definition]
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__pid_re = (?:\[\d+\])
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# All Asterisk log messages begin like this:
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log_prefix= \[\]\s*(?:NOTICE|SECURITY)%(__pid_re)s:?(?:\[C-[\da-f]*\])? \S+:\d*
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failregex = ^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?' - (Wrong password|No matching peer found|Username/auth name mismatch|Device does not match ACL|Peer is not supposed to register|ACL error \(permit/deny\)|Not a local domain)$
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^%(log_prefix)s Call from '[^']*' \(<HOST>:\d+\) to extension '\d+' rejected because extension not found in context 'default'\.$
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^%(log_prefix)s Host <HOST> failed to authenticate as '[^']*'$
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^%(log_prefix)s No registration for peer '[^']*' \(from <HOST>\)$
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^%(log_prefix)s Host <HOST> failed MD5 authentication for '[^']*' \([^)]+\)$
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^%(log_prefix)s Failed to authenticate (user|device) [^@]+@<HOST>\S*$
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^%(log_prefix)s (?:handle_request_subscribe: )?Sending fake auth rejection for (device|user) \d*<sip:[^@]+@<HOST>>;tag=\w+\S*$
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^%(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+"(,Challenge="\w+",ReceivedChallenge="\w+")?(,ReceivedHash="[\da-f]+")?$
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^\[\]\s*WARNING%(__pid_re)s:?(?:\[C-[\da-f]*\])? Ext\. s: "Rejecting unknown SIP connection from <HOST>"$
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ignoreregex =
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# Author: Xavier Devlamynck
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