Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Potential MSXML2.DOMDocument ActiveXObject Uninitialized Memory Corruption Attempt"; flow:to_client,established; file_data; content:"ActiveXObject"; nocase; content:"MSXML2."; fast_pattern; content:"DOMDocument"; within:23; content:"definition"; nocase; pcre:"/MSXML2\.(FreeThreaded)?DOMDocument(\.[3-6]\.0)?/si"; pcre:"/(?:\[\s*[\x22\x27]definition[\x22\x27]\s*\]|\.definition)\(/"; reference:cve,CVE-2012-1889; classtype:attempted-user; sid:2015556; rev:22; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2012_06_19, deployment Perimeter, confidence Medium, signature_severity Major, tag ActiveX, tag Web_Client_Attacks, tag CISA_KEV, updated_at 2022_06_10;)