jaygooby

# log4j jndi exploit CVE-2021-44228 filter
# Save this file as /etc/fail2ban/filter.d/log4j-jndi.conf
# then copy and uncomment the [log4j-jndi] section 
# to /etc/fail2ban/jail.local
#
# jay@gooby.org
# https://jay.gooby.org/2021/12/13/a-fail2ban-filter-for-the-log4j-cve-2021-44228
# https://gist.github.com/jaygooby/3502143639e09bb694e9c0f3c6203949
# Thanks to https://gist.github.com/kocour for a better regex
#

sverhagen

package com.example;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.BeanProperty;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

darylteo

import java.util.List;

@Data
public class ArrayOrObject<T> {
    private List<T> data;

    private Boolean isObject;
}

gotomypc

class Beanutils{
//merge two bean by discovering differences 
private <M> void merge(M target, M destination) throws Exception {
		    BeanInfo beanInfo = Introspector.getBeanInfo(target.getClass());

		    // Iterate over all the attributes
		    for (PropertyDescriptor descriptor : beanInfo.getPropertyDescriptors()) {

		      // Only copy writable attributes
		      if (descriptor.getWriteMethod() != null) {