alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
msg:"ET EXPLOIT Mongo-Express RCE Inbound (CVE-2019-10758)";
flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/checkValid";
http.request_body;
content:"document=this.constructor";
content:"execSync"; distance:0; fast_pattern;
reference:cve,2019-10758;
reference:url,github.com/masahiro331/CVE-2019-10758;
reference:url,blogs.juniper.net/en-us/threat-research/sysrv-botnet-expands-and-gains-persistence;
classtype:attempted-admin;
sid:2033113; rev:1;
metadata:attack_target Client_Endpoint, created_at 2021_06_08, cve CVE_2019_10758, deployment Perimeter, confidence Medium, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_08;
)