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eams's Introduction

Hello, I'm Martin. I do open source!


I'm a passionate developer from China

About me

  • 💼 Java Engineer

  • 📈 The only sustainable competitive advantage is the ability to learn over competitors.

  • ❤️ I love Coding, and building fun experiments

  • 💬 Ask me about anything here

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eams's Issues

There is a deserialization vulnerability

In EAMS/eams-framework/src/main/java/com/dimple/framework/config/ShiroConfig.java we can find a fixed key and uses this key to encrypt the rememberMe parameter in the cookie. It will cause deserialization vulnerability

xoSgmT.png

I set up a a local environment for attacks.

I found that the source code contains commons-collections-3.2.2.jar and commons-beanutils-1.9.4.jar dependency, which is actually a dependency included in shiro.
Using this dependency, it is possible to generate a deserialized payload and then encrypt the payload using the key obtained by blasting. write this payload after the rememberMe field and attack it. Successful RCE.

[xoSrpn.png](

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