CVE-2024-1561: gradio — Exploit & Fix

Description

An issue was discovered in gradio-app/gradio, where the `/component_server` endpoint improperly allows the invocation of any method on a `Component` class with attacker-controlled arguments. Specifically, by exploiting the `move_resource_to_block_cache()` method of the `Block` class, an attacker can copy any file on the filesystem to a temporary directory and subsequently retrieve it. This vulnerability enables unauthorized local file read access, posing a significant risk especially when the application is exposed to the internet via `launch(share=True)`, thereby allowing remote attackers to read files on the host machine. Furthermore, gradio apps hosted on `huggingface.co` are also affected, potentially leading to the exposure of sensitive information such as API keys and credentials stored in environment variables.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-29 CWE-29

Affected Products

Vendor	Product	Versions
gradio_project	gradio	4.12.0 — 4.13.0

References

Advisories & Patches

https://github.com/gradio-app/gradio/commit/24a583688046867ca8b8b02959c441818bdb34a2 https://github.com/gradio-app/gradio/commit/24a583688046867ca8b8b02959c441818bdb34a2

Exploits

https://huntr.com/bounties/4acf584e-2fe8-490e-878d-2d9bf2698338 https://huntr.com/bounties/4acf584e-2fe8-490e-878d-2d9bf2698338

Other References

https://www.gradio.app/changelog#4-13-0 https://www.gradio.app/changelog#4-13-0

Frequently Asked Questions

What is CVE-2024-1561? +

An issue was discovered in gradio-app/gradio, where the `/component_server` endpoint improperly allows the invocation of any method on a `Component` class with attacker-controlled arguments. Specifically, by exploiting the `move_resource_to_block_cache()` method of the `Block` class, an attacker can copy any file on the filesystem to a temporary directory and subsequently retrieve it. This vulnerability enables unauthorized local file read access, posing a significant risk especially when the application is exposed to the internet via `launch(share=True)`, thereby allowing remote attackers to read files on the host machine. Furthermore, gradio apps hosted on `huggingface.co` are also affected, potentially leading to the exposure of sensitive information such as API keys and credentials stored in environment variables. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-1561? +

CVE-2024-1561 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-1561? +

CVE-2024-1561 affects products from gradio_project, specifically: gradio. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-1561? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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