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kkfileview/4.3-zipslip-rce/README.md

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+# kkFileView ZipSlip Remote Code Execution
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+kkFileView is an open source document online preview solution.
+
+In the version prior to 4.4.0-beta, kkFileView has a ZipSlip issue. Attackers can use this issue to upload arbitrary files to the server and execute code.
+
+References:
+
+- <https://github.com/luelueking/kkFileView-v4.3.0-RCE-POC>
+
+## Vulnerable environment
+
+Execute following command to start a kkFileView 3.4.0:
+
+```
+docker compose up -d
+```
+
+After the server is started, you can see the index page at `http://your-ip:8012`.
+
+## Exploit
+
+First, generate a craft POC by [poc.py](poc.py):
+
+```
+python poc.py
+```
+
+A `test.zip` file will be written.
+
+Upload `test.zip` and the [sample.odt](samople.odt) to the kkFileView server:
+
+![](1.png)
+
+Then, click the "preview" button of `test.zip`, the zip file will be listed:
+
+![](2.png)
+
+Finally, click the "preview" button of `sample.odt`.
+
+You can see the `touch /tmp/success` has been executed successful:
+
+![](3.png)