On Sat, Aug 16, 2014 at 7:34 AM, Fayax <[email protected]> wrote:
> Hello,
>
> I have my Cisco devices to forward logs to syslog server and then OSSEC to
> analyze these logs. Built-in Cisco IOS decoder doesn't seem to be working.
> So I'm writing my own decoder which doesn't seem to be working either.
> Here is the decoder and logtest results
>
>
> <decoder name="ciscotest">
>         <prematch>^\w+ \d+ \d+:\d+:\d+ \d+.\d+.\d+.\d+ \d+: \w+:
> %SEC-6-IPACCESSLOGP:</prematch>
> </decoder>
>
>
> ossec-testrule: Type one log per line.
> Aug 16 16:05:42 192.168.30.1 669891: CORESWITCH: %SEC-6-IPACCESSLOGP: list
> VLAN_40 denied udp 192.168.40.5(137) -> 192.168.40.255(137), 1 packet
>
>
> **Phase 1: Completed pre-decoding.
>        full event: 'Aug 16 16:05:42 192.168.30.1 669891: CORESWITCH:
> %SEC-6-IPACCESSLOGP: list VLAN_40 denied udp 192.168.40.5(137) ->
> 192.168.40.255(137), 1 packet'
>        hostname: '192.168.30.1'
>        program_name: '669891'
>        log: 'CORESWITCH: %SEC-6-IPACCESSLOGP: list VLAN_40 denied udp
> 192.168.40.5(137) -> 192.168.40.255(137), 1 packet'
>

Base your decoder on the "log" line here, not the full log.

<decoder name="another-cisco">
  <match>^\S+: %SEC-</match>
</decoder>

> **Phase 2: Completed decoding.
>        No decoder matched.
>
> **Phase 3: Completed filtering (rules).
>        Rule id: '1002'
>        Level: '2'
>        Description: 'Unknown problem somewhere in the system.'
> **Alert to be generated
>
>
>
> Any help would be greatly appreciated.
>
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