Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Potential MSXML2.FreeThreadedDOMDocument Uninitialized Memory Corruption Attempt"; flow:to_client,established; content:"f6d90f12-9c73-11d3-b32e-00c04f990bb4"; nocase; content:"definition"; nocase; pcre:"/clsid\s*\x3a\s*\x7B?\s*f6d90f12-9c73-11d3-b32e-00c04f990bb4/si"; pcre:"/(?:\[\s*[\x22\x27]definition[\x22\x27]\s*\]|\.definition)\(/"; reference:cve,2012-1889; classtype:attempted-user; sid:2015557; rev:6; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2012_07_10, cve CVE_2012_1889, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;)