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50 lines
2.2 KiB
Plaintext
50 lines
2.2 KiB
Plaintext
7 years ago
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# Fail2Ban filter for unsuccesfull MongoDB authentication attempts
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#
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# Logfile /var/log/mongodb/mongodb.log
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#
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# add setting in /etc/mongodb.conf
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# logpath=/var/log/mongodb/mongodb.log
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#
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# and use of the authentication
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# auth = true
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#
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[Definition]
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#failregex = ^\s+\[initandlisten\] connection accepted from <HOST>:\d+ \#(?P<__connid>\d+) \(1 connection now open\)<SKIPLINES>\s+\[conn(?P=__connid)\] Failed to authenticate\s+
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failregex = ^\s+\[conn(?P<__connid>\d+)\] Failed to authenticate [^\n]+<SKIPLINES>\s+\[conn(?P=__connid)\] end connection <HOST>
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ignoreregex =
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[Init]
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maxlines = 10
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# DEV Notes:
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#
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# Regarding the multiline regex:
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#
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# There can be a nunber of non-related lines between the first and second part
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# of this regex maxlines of 10 is quite generious.
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#
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# Note the capture __connid, includes the connection ID, used in second part of regex.
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#
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# The first regex is commented out (but will match also), because it is better to use
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# the host from "end connection" line (uncommented above):
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# - it has the same prefix, searching begins directly with failure message
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# (so faster, because ignores success connections at all)
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# - it is not so vulnerable in case of possible race condition
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#
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# Log example:
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# 2016-10-20T09:54:27.108+0200 [initandlisten] connection accepted from 127.0.0.1:53276 #1 (1 connection now open)
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# 2016-10-20T09:54:27.109+0200 [conn1] authenticate db: test { authenticate: 1, nonce: "xxx", user: "root", key: "xxx" }
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# 2016-10-20T09:54:27.110+0200 [conn1] Failed to authenticate root@test with mechanism MONGODB-CR: AuthenticationFailed UserNotFound Could not find user root@test
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# 2016-11-09T09:54:27.894+0100 [conn1] end connection 127.0.0.1:53276 (0 connections now open)
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# 2016-11-09T11:55:58.890+0100 [initandlisten] connection accepted from 127.0.0.1:54266 #1510 (1 connection now open)
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# 2016-11-09T11:55:58.892+0100 [conn1510] authenticate db: admin { authenticate: 1, nonce: "xxx", user: "root", key: "xxx" }
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# 2016-11-09T11:55:58.892+0100 [conn1510] Failed to authenticate root@admin with mechanism MONGODB-CR: AuthenticationFailed key mismatch
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# 2016-11-09T11:55:58.894+0100 [conn1510] end connection 127.0.0.1:54266 (0 connections now open)
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#
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# Authors: Alexander Finkhäuser
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# Sergey G. Brester (sebres)
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