alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET WEB_CLIENT Possible CVE-2013-1710/CVE-2012-3993 Firefox Exploit Attempt";
flow:established,to_client;
file_data;
content:"generateCRMFRequest"; nocase; fast_pattern;
content:"InstallTrigger"; nocase;
content:"__exposedProps__"; nocase;
content:"__defineGetter__"; nocase;
content:"getInstallForURL"; nocase;
content:".install|28|"; nocase;
content:"x-xpinstall"; nocase;
reference:cve,CVE-2013-1710;
reference:cve,CVE-2012-3993;
classtype:attempted-user;
sid:2021078; rev:3;
metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2015_05_08, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_10_08;
)