<185>Oct 16 01:33:25 WAFirewall CEF:0|Barracuda|WAF|1210|16|DIRECTORY_TRAVERSAL_BEYOND_ROOT|1|cat=WF dst=213.242.208.136 dpt=80 act=DENY msg=[Invalid directory traversal attempted] duser="-" src=186.199.65.158 spt=32795 requestMethod=GET app=HTTP requestContext="-" start=Oct 16 2023 01:33:25  rt=1697438005851  request=/c:..%u002f..%u002f..%u002f..%u002f..%u002f..%u002fetc/passwd%00 requestClientApplication="Mozilla/5.0 [en] (X11, U; OpenVAS-VT 9.0.3)" dvchost=WAFirewall externalId=18b37307a5b-3b5c3394 cn2=32795 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=186.199.65.158 cs5Label=ProxyIP cs6="-" cs6Label=SessionID 

This is a syslog message from a product called Barracuda WAF by Barracuda. The following fields were extracted from the message:
action: block
clientport: 32795
facilitycode: 23
facilitylabel: local7
fqdn: /c:..%u002f..%u002f..%u002f..%u002f..%u002f..%u002fetc/passwd%00
localhostname: WAFirewall
localstarttime: 1697438005851 
messagetype: DIRECTORY_TRAVERSAL_BEYOND_ROOT
priority: 185
senderhost: 10.0.0.250
sensitivity: normal
serverport: 80
severitycode: 9
severitylabel: alert
sourceinfo: unknown
tags: ['RuleID:global', 'AttackGroup:Forceful Browsing', 'rfc3164', 'cef', 'SessionID:-', 'FollowUpAction:NONE', 'DIRECTORY_TRAVERSAL_BEYOND_ROOT', 'RuleType:GLOBAL', 'ProxyIP:143.244.39.22', 'barracuda_waf_DIRECTORY_TRAVERSAL_BEYOND_ROOT', 'barracuda_waf']
vendorcode: 16
streamName: barracuda_waf
clientIP: 186.199.65.158
serverIP: 213.242.208.136
userName: -