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redis/4-unacc/README.md

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+# Redis Post Exploitation Due to Master and Slave Synchronisation
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker.
+
+Redis which version starts from 4.0, prior to 5.0.5, can be exploit through the synchronisation between master and slave by an authenticated visitor.
+
+Reference:
+
+- <https://2018.zeronights.ru/wp-content/uploads/materials/15-redis-post-exploitation.pdf>
+
+## Vulnerability Environment
+
+Execute following command to start a Redis server 4.0.14:
+
+```
+docker compose up -d
+```
+
+After server is started, you can connect to this server without credentials by `redis-cli`:
+
+```
+redis-cli -h your-ip
+```
+
+## Exploit
+
+Use [this script](https://github.com/vulhub/redis-rogue-getshell) to execute arbitrary commands:
+
+![](1.png)