alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SPECIFIC_APPS Coppermine Photo Gallery retva Parameter Remote Command Execution Attempt";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/include/picmgmt.inc.php?"; nocase;
content:"retva="; nocase;
pcre:"/^\w/Ri";
reference:url,packetstormsecurity.org/files/view/98347/cpg15x-exec.txt;
classtype:web-application-attack;
sid:2012383; rev:5;
metadata:created_at 2011_02_25, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_22;
)