CVE-2021-44228-Demo

This project for prove and testing zero-day log4j exploit

verify dependency

./mvnw dependency:list

patch

A set ENV LOG4J_FORMAT_MSG_NO_LOOKUPS=true

B add vm option -Dlog4j2.formatMsgNoLookups=true

C.1 add properties log4j2.formatMsgNoLookups=true (NOT WORK) C.2 add properties log4j.formatMsgNoLookups=true (NOT WORK)

D update <log4j2.version>2.15.0</log4j2.version>

E in log4j2.xml replace %m with %m{nolookups}