Apache Dubbo default deserialization protocol Hessian2 cause CRE

A deserialization vulnerability existed in dubbo 2.7.5 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protool, during Hessian2 deserializing the HashMap object, some functions in the classes stored in HasMap will be executed after a series of program calls, however, those special functions may cause remote command execution. For example, the hashCode() function of the EqualsBean class in rome-1.7.0.jar will cause the remotely load malicious classes and execute malicious code by constructing a malicious request. This issue was fixed in Apache Dubbo 2.6.9 and 2.7.8.

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可信数据的反序列化

Apache Dubbo 代码问题漏洞

Apache Dubbo是美国阿帕奇软件（Apache）基金会的一款基于Java的轻量级RPC（远程过程调用）框架。该产品提供了基于接口的远程呼叫、容错和负载平衡以及自动服务注册和发现等功能。 Apache Dubbo 版本代码 2.7.5 及之前版本中存在代码问题漏洞。该漏洞源于使用者使用Hessian2作为序列化和反序列化的工具，该工具反序列化HashMap对象的时候，同时会执行一些代码从而引起代码执行。

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