alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2021-21311 Adminer - Server-Side Request Forgery"; flow:established,to_server; http.request_body; content:"auth[driver]=elastic&auth[server]=example.org&auth[username]"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2021-21311; reference:url,https://www.exploit.observer/?keyword=CVE-2021-21311&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=adminer&match=exact; sid:1011279; rev:1;)