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44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
# ShowDoc 3.2.5 SQL Injection
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[中文版本(Chinese version)](README.zh-cn.md)
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ShowDoc is a tool greatly applicable for an IT team to share documents online. It can promote communication efficiency between members of a team.
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ShowDoc version <= 3.2.5, an unauthenticated SQL injection issue is found and attacker is able to steal user password and token from SQLite database.
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References:
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- <https://github.com/star7th/showdoc/commit/84fc28d07c5dfc894f5fbc6e8c42efd13c976fda>
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## Vulnerable environment
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Execute following command to start a ShowDoc server 3.2.4:
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```
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docker compose up -d
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```
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After the server is started, browse `http://your-ip:8080` to see the index page of ShowDoc. Log in the portal using username `showdoc` and password `123456`.
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## Exploit
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Once a user has logged into ShowDoc, a user token is generated in the SQLite database. Compared to stealing a user's hashed password through SQL injection,user token is a more useful target.
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Before exploiting the issue, a CAPTCHA recognition library is required:
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```
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pip install onnxruntime ddddocr requests
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```
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Then use [this POC](poc.py) to extract the token:
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```
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python3 poc.py -u http://localhost:8080
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```
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To test if the token is valid:
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