cscli parsers install corvese/apache-guacamole-logsA parser that will search for failed authentication attempts.
acquis.yaml configuraiton file. The type MUST be exactly as shown here or the parser will never be successful.1filenames:2 - /path/to/apache-guacamole.log3labels:4 type: apache-guacamole
❗ The type MUST be apache-guacamole ❗
The default log format used by quacamole is not supported by crowdsec as there is no date in the log line you will need to do the following to make it compatible, these are examples and should be changed to reflect your setup.
1<configuration>2 <!-- Default appender -->3 <appender name="GUAC-DEFAULT" class="ch.qos.logback.core.ConsoleAppender">4 <encoder>5 <pattern>%date{"yyyy-MM-dd'T'HH:mm:ss,SSSXXX", UTC} [%thread] %-5level %logger{36} - %msg%n</pattern>6 </encoder>7 </appender>89 <!-- Log at INFO level -->10 <root level="WARN">11 <appender-ref ref="GUAC-DEFAULT" />12 </root>1314</configuration>
FILE:
1<configuration>2 <!-- Default appender -->3 <appender name="GUAC-DEFAULT" class="ch.qos.logback.core.FileAppender">4 <file>/var/log/guacamole.log</file>5 <encoder>6 <pattern>%date{"yyyy-MM-dd'T'HH:mm:ss,SSSXXX", UTC} [%thread] %-5level %logger{36} - %msg%n</pattern>7 </encoder>8 </appender>910 <!-- Log at INFO level -->11 <root level="WARN">12 <appender-ref ref="GUAC-DEFAULT" />13 </root>1415</configuration>
If using docker you will need to mount the following volume that links to the logback.xml file and set the GUACAMOLE_HOME variable
1 volumes:2 - ./logback.xml:/home/guacamole/temp/logback.xml:ro3 environment:4 GUACAMOLE_HOME: /home/guacamole/temp/
1name: corvese/apache-guacamole-logs2description: "Parses Apache Guacamole logs"3filter: "evt.Parsed.program == 'apache-guacamole'"4onsuccess: next_stage5pattern_syntax:6 GUAC_CUSTOMUSER: "(%{EMAILADDRESS}|%{USERNAME})"7nodes:8 - grok:9 pattern: '%{TIMESTAMP_ISO8601:timestamp}.*Authentication attempt from \[?%{IP:source_ip}.*for user "%{GUAC_CUSTOMUSER:username}" failed'10 apply_on: message11 statics:12 - meta: log_type13 value: apache-guacamole_failed_auth14 - meta: target_user15 expression: evt.Parsed.username16statics:17 - meta: service18 value: apache-guacamole19 - meta: source_ip20 expression: evt.Parsed.source_ip21 - target: evt.StrTime22 expression: evt.Parsed.timestamp23