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Howto detect if affected: Start netcat parallel to your app: "nc -lp 1234", then type the following into app where it gets logged (e.g. the query string of your search): "${jndi:ldap://127.0.0.1:1234/abc}" If you then see garbage/emojis in the netcat console your're vulnerable!
Uwe Schindler 👮💳💉💉 (@thetaph1)Fri, 10 Dec 2021 11:51 GMT











