MindsDB up to 23.11.4.0 file.py save_file Name server-side request forgery

Summaryinfo

A vulnerability described as critical has been identified in MindsDB up to 23.11.4.0. The impacted element is the function save_file of the file mindsdb/mindsdb/api/http/namespaces/file.py. The manipulation of the argument Name results in server-side request forgery. This vulnerability is cataloged as CVE-2023-50731. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in MindsDB up to 23.11.4.0. Affected is the function save_file of the file mindsdb/mindsdb/api/http/namespaces/file.py. The manipulation of the argument name with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was shared 12/23/2023 as GHSA-j8w6-2r9h-cxhj. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-50731 since 12/11/2023. There are known technical details, but no exploit is available.

Upgrading to version 23.11.4.1 eliminates this vulnerability.

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Productinfo

Name

• MindsDB

Version

• 23.11.0
• 23.11.1
• 23.11.2
• 23.11.3
• 23.11.4.0

Website

• Product: https://github.com/mindsdb/mindsdb/

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