Adobe ColdFusion CVE-2017-3066

Immediately upgrade to ColdFusion 2016 Update 4, ColdFusion 11 Update 12, or ColdFusion 10 Update 23 as specified in Adobe Security Bulletin APSB17-14 (https://helpx.adobe.com/security/products/coldfusion/apsb17-14.html). These versions include patched BlazeDS libraries that properly validate serialized objects. If immediate patching is not feasible, implement network-level access controls to restrict ColdFusion server access to trusted IP addresses only, effectively converting the AV:N to AV:A (adjacent network). Specifically, block external access to BlazeDS endpoints (typically /flex2gateway/ and /messagebroker/ paths) at the firewall or web application firewall layer, though this severely limits legitimate AMF remoting functionality. Disable BlazeDS entirely if Flash/Flex remoting is not business-critical by removing or renaming the BlazeDS servlet mappings in web.xml, understanding this will break any applications relying on AMF services. Monitor for deserialization attack patterns in application logs, including unusual Java class names in POST data and unexpected ysoserial gadget chains. Given the confirmed active exploitation and publicly available exploits, compensating controls should be considered temporary emergency measures only - patching remains the only reliable long-term mitigation.