committing changes in /etc made by "-bash"
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68
crowdsec/hub/parsers/s01-parse/crowdsecurity/nginx-logs.yaml
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68
crowdsec/hub/parsers/s01-parse/crowdsecurity/nginx-logs.yaml
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filter: "evt.Parsed.program startsWith 'nginx'"
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onsuccess: next_stage
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name: crowdsecurity/nginx-logs
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description: "Parse nginx access and error logs"
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nodes:
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- grok:
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pattern: '(%{IPORHOST:target_fqdn} )?%{IPORHOST:remote_addr} - (%{NGUSER:remote_user})? \[%{HTTPDATE:time_local}\] "%{WORD:verb} %{DATA:request} HTTP/%{NUMBER:http_version}" %{NUMBER:status} %{NUMBER:body_bytes_sent} "%{NOTDQUOTE:http_referer}" "%{NOTDQUOTE:http_user_agent}"( %{NUMBER:request_length} %{NUMBER:request_time} \[%{DATA:proxy_upstream_name}\] \[%{DATA:proxy_alternative_upstream_name}\])?'
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apply_on: message
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statics:
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- meta: log_type
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value: http_access-log
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- target: evt.StrTime
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expression: evt.Parsed.time_local
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- grok:
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# and this one the error log
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pattern: '(%{IPORHOST:target_fqdn} )?%{NGINXERRTIME:time} \[%{LOGLEVEL:loglevel}\] %{NONNEGINT:pid}#%{NONNEGINT:tid}: (\*%{NONNEGINT:cid} )?%{GREEDYDATA:message}, client: %{IPORHOST:remote_addr}, server: %{DATA:target_fqdn}, request: "%{WORD:verb} ([^/]+)?%{URIPATHPARAM:request}( HTTP/%{NUMBER:http_version})?", host: "%{IPORHOST}(:%{NONNEGINT})?"'
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apply_on: message
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statics:
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- meta: log_type
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value: http_error-log
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- target: evt.StrTime
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expression: evt.Parsed.time
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pattern_syntax:
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NO_DOUBLE_QUOTE: '[^"]+'
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onsuccess: next_stage
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nodes:
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- filter: "evt.Parsed.message contains 'was not found in'"
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pattern_syntax:
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USER_NOT_FOUND: 'user "%{NO_DOUBLE_QUOTE:username}" was not found in "%{NO_DOUBLE_QUOTE}"'
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grok:
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pattern: '%{USER_NOT_FOUND}'
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apply_on: message
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statics:
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- meta: sub_type
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value: "auth_fail"
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- meta: username
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expression: evt.Parsed.username
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- filter: "evt.Parsed.message contains 'password mismatch'"
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pattern_syntax:
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PASSWORD_MISMATCH: 'user "%{NO_DOUBLE_QUOTE:username}": password mismatch'
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grok:
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pattern: '%{PASSWORD_MISMATCH}'
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apply_on: message
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statics:
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- meta: sub_type
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value: "auth_fail"
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- meta: username
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expression: evt.Parsed.username
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- filter: "evt.Parsed.message contains 'limiting requests, excess'"
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statics:
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- meta: sub_type
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value: "req_limit_exceeded"
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# these ones apply for both grok patterns
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statics:
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- meta: service
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value: http
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- meta: source_ip
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expression: "evt.Parsed.remote_addr"
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- meta: http_status
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expression: "evt.Parsed.status"
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- meta: http_path
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expression: "evt.Parsed.request"
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- meta: http_verb
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expression: "evt.Parsed.verb"
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- meta: http_user_agent
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expression: "evt.Parsed.http_user_agent"
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- meta: target_fqdn
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expression: "evt.Parsed.target_fqdn"
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