Not another Log4Shell: inside the Log4j 2 deserialization allowlist bypass
Security Labs
Not another Log4Shell: inside the Log4j 2 deserialization allowlist bypass
We reproduced this java deserialization vulnerability against official Log4j 2.26.1 JARs. Getting to command execution took two more things that Log4j itself does not ship. Here is how the bypass works, which versions carry it, and what to hunt for.
wp2shell hits WordPress: detecting pre-auth RCE from plugin drop to command execution
Security Labs
wp2shell hits WordPress: detecting pre-auth RCE from plugin drop to command execution
We ran the wp2shell WordPress RCE chain end-to-end with Elastic Defend. Detection rule walkthrough, IOCs, and hunt guidance.