WebLogic “Java 反序列化”过程远程命令执行漏洞

漏洞原理 反序列化是指特定语言中将传递的对象序列化数据重新恢复为实例对象的过程，而在这个过程中会执行一系列的字节流解析和对象实例化操作用于恢复之前序列化时的对象。在原博文所提到的那些 Java 应用里都有特定的接口用于传递序列化对象数据，而在反序列化时并没有限制实例化对象的类型，导致可以任意构造应用中已经包含的对象利用反序列化操作进行实例化。 Java 在进行反序列化操作的时候会使用 ObjectInputStream 类调用 readObject...

Apache Commons Collections Java Library Vulnerability

US-CERT is aware of a deserialization vulnerability in the Apache Commons Collections ACC Java library. Java applications that either directly use ACC, or contain ACC in their classpath, may be vulnerable to arbitrary code execution. US-CERT encourages users and administrators to review...

Apache Commons Collections Java library insecurely deserializes data

Overview The Apache Commons Collections ACC library is vulnerable to insecure deserialization of data, which may result in arbitrary code execution. Java applications that either directly use ACC, or contain ACC in their classpath, may be vulnerable to arbitrary code execution. Description CWE-50...

Apache Commons Collections Unserialize Java Vulnerability

For close to 10 months, a critical vulnerability in a library found in most Java rollouts has been twisting in the wind, unpatched, and until this week without proof-of-concept exploits that people paid attention to. Two researchers with NTT Com Security changed that dynamic last week when they...