Community driven content discussing all aspects of software development from DevOps to design patterns. In this Java serialization example, we will use both the ObjectOutputStream and the ...

Originally released as part of AppSecCali 2015 Talk "Marshalling Pickles: how deserializing objects will ruin your day" with gadget chains for Apache Commons Collections (3.x and 4.x), Spring ...

Java反序列化是将字节流（byte stream）转换回Java对象的过程。然而，这一过程存在严重安全风险，攻击者通过构造恶意序列化数据可在目标系统上执行任意代码（Remote Code Execution, RCE）。以下是关键知识点和防护措施： 接受外部序列化数据的接口（如网络传输 ...

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want. Copying objects ...

该利用链可以在 fastjson 多个版本实现 RCE ，并且借助 SignedObject 绕过第一层安全的 resolveClass 对于 TemplatesImpl 类的检查。 说起来还是 AliyunCTF 那道 ezbean 的非预期，很多师傅使用 FastJson#toString 方法触发 TemplatesImpl#getOutputProperties 实现 RCE 。

To ensure you're always protected, we've curated our top three AWS security resources into one invaluable bundle. You'll learn best practices in S3 security, AWS Security Group, and more! The State of ...

Since updating from 2.0.1 to 2.0.2 (nothing else on the classpath has changed), I sometimes get this exception: org.springframework.remoting.RemoteAccessException ...