alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2023-27351 PaperCut NG - Authentication Bypass"; flow:established,to_server; http.uri; content:"/rpc/api/rest/master/user/createInternalUser|3b|/keepalive"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2023-27351; reference:url,https://www.exploit.observer/?keyword=CVE-2023-27351&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=papercut&match=exact; sid:1011370; rev:1;)