alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SERVER Possible HP OpenView Network Node Manager ovalarm.exe CGI Buffer Overflow Attempt";
flow:established,to_server;
http.method;
content:"GET"; nocase;
http.uri;
content:"/OvCgi/ovalarm.exe"; nocase; fast_pattern;
content:"OVABverbose="; nocase; distance:0;
pcre:"/^(1|on|true)/Ri";
http.accept_lang;
isdataat:100,relative;
reference:cve,2009-4179;
classtype:web-application-attack;
sid:2010704; rev:10;
metadata:created_at 2010_07_30, cve CVE_2009_4179, confidence Low, signature_severity Major, updated_at 2020_11_07;
)