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

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.

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