alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET WEB_SPECIFIC_APPS OSTicket Remote Code Execution Attempt"; flow:established,from_client; content:"/osticket/include"; http_uri; nocase; pcre:"/.*\[.*\].*\;/U"; reference:url,secunia.com/advisories/15216; reference:url,www.gulftech.org/?node=research&article_id=00071-05022005; reference:cve,CAN-2005-1438; reference:cve,CAN-2005-1439; classtype:web-application-attack; sid:2002702; rev:7; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_22, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)