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CVE-2023-50731— MindsDB has arbitrary file write in file.py

Quick assessment

Affected
mindsdb mindsdb
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MindsDB是MindsDB公司的一个新兴的低代码机器学习平台。 MindsDB 23.11.4.1之前版本存在代码问题漏洞，该漏洞源于不会验证用户控制的名称值，可能会导致路径注入。

CVSS 9.1 · Critical EPSS 0.98% · P61
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I. Basic Information for CVE-2023-50731

Vulnerability Information
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Vulnerability Title
MindsDB has arbitrary file write in file.py
Source: CVE Program / CVE List V5
Vulnerability Description
MindsDB is a SQL Server for artificial intelligence. Prior to version 23.11.4.1, the `put` method in `mindsdb/mindsdb/api/http/namespaces/file.py` does not validate the user-controlled name value, which is used in a temporary file name, which is afterwards opened for writing on lines 122-125, which leads to path injection. Later in the method, the temporary directory is deleted on line 151, but since we can write outside of the directory using the path injection vulnerability, the potentially dangerous file is not deleted. Arbitrary file contents can be written due to `f.write(chunk)` on line 125. Mindsdb does check later on line 149 in the `save_file` method in `file-controller.py` which calls the `_handle_source` method in `file_handler.py` if a file is of one of the types `csv`, `json`, `parquet`, `xls`, or `xlsx`. However, since the check happens after the file has already been written, the files will still exist (and will not be removed due to the path injection described earlier), just the `_handle_source` method will return an error. The same user-controlled source source is used also in another path injection sink on line 138. This leads to another path injection, which allows an attacker to delete any `zip` or `tar.gz` files on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
MindsDB 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MindsDB是MindsDB公司的一个新兴的低代码机器学习平台。 MindsDB 23.11.4.1之前版本存在代码问题漏洞，该漏洞源于不会验证用户控制的名称值，可能会导致路径注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
mindsdb mindsdb < 23.11.4.1 -

II. Public POCs for CVE-2023-50731

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Qwen3.6-35B-A3B · 9723 chars
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III. Intelligence Information for CVE-2023-50731

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Patches & Fixes for CVE-2023-50731 (1)

Vendor Advisories for CVE-2023-50731 (1)

Other References for CVE-2023-50731 (2)

IV. Related Vulnerabilities

Same product: mindsdb
Same vendor: mindsdb
Same weakness: CWE-918

V. Comments for CVE-2023-50731

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