Log4j “Log4Shell“ RCE explained (CVE-2021-44228)

Hello everyone! I decided to make a separate episode about Log4Shell. Of course, there have already been many reviews of this vulnerability. But I do it primarily for myself. It seems to me that serious problems with Log4j and similar libraries will be with us for a long time. Therefore, it would be interesting to document how it all began. So what is the root cause of Log4Shell? Text: #Log4j #Log4Shell #JNDI #LDAP