alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT OpenMRS Deserialization Vulnerability CVE-2018-19276"; flow:to_server,established; urilen:19; http.method; content:"POST"; http.uri; content:"/ws/rest/v1/concept"; fast_pattern; http.request_body; content:"<string>"; content:"</string>"; distance:0; content:"<string>"; distance:0; content:"</string>"; distance:0; reference:url,www.rapid7.com/db/modules/exploit/multi/http/openmrs_deserialization; reference:cve,2018-19276; classtype:attempted-admin; sid:2030258; rev:2; metadata:affected_product Linux, attack_target IoT, created_at 2020_06_08, cve CVE_2018_19276, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_08;)