CVE-2024-1561: Gradio Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-g9cj-cfpp-4g2x
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CVSS 7.5
CWE-29
Published
Advisory Summary

CVE-2024-1561 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-29: Path Traversal: '\..\filename') affecting Gradio libraries in the PyPI ecosystem. The issue involves gradio vulnerable to path traversal. Remediation is available by upgrading affected packages to version 4.13.0.

CVE-2024-1561 at a Glance

CVE Identifier CVE-2024-1561
GHSA Identifier GHSA-g9cj-cfpp-4g2x
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-29: Path Traversal: '\..\filename'
Affected Product Gradio
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2024-1561

To remediate this vulnerability, upgrade all affected Gradio dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

gradio fixed: 4.13.0 
pip install gradio>=4.13.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show gradio

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-1561, inspect your installed packages using pip:

pip show gradio

Analyze the terminal output to locate any version of Gradio in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.13.0), your application is affected.

Note: The pip show gradio command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-29: Path Traversal: '\..\filename', where the product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory. In Gradio, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2024-1561 Affected Gradio Versions

1 component(s)
Fixed Versions:
4.13.0
Product / Package Ecosystem Affected Versions Fixed Version
gradio
pypi/gradio
PyPI
< 4.13.0
4.13.0

References

NVD — CVE-2024-1561 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-1561
Security Fix Commit FIX COMMIT
https://github.com/gradio-app/gradio/commit/24a583688046867ca8b8b02959c441818bdb34a2
Gradio Source Repository REPOSITORY
https://github.com/gradio-app/gradio
huntr.com/bounties/4acf584e-2... WEB
https://huntr.com/bounties/4acf584e-2fe8-490e-878d-2d9bf2698338
Gradio Security Information SECURITY
https://www.gradio.app/changelog#4-13-0

Frequently Asked Questions

What is CVE-2024-1561?
CVE-2024-1561 is a security vulnerability in Gradio involving gradio vulnerable to Path Traversal under CWE-29: Path Traversal: '\..\filename'.
Which Gradio versions are affected?
Affected versions include releases prior to 4.13.0 across affected packages: gradio.
What version fixes CVE-2024-1561?
Upgrading to 4.13.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is gradio affected?
Yes, gradio is affected in releases prior to 4.13.0. Upgrade your dependency to 4.13.0 or later.
What is the CVSS score of CVE-2024-1561?
CVE-2024-1561 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2024-1561?
CVE-2024-1561 is classified under CWE-29: Path Traversal: '\..\filename' (The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.).
How can I check PyPI dependencies for CVE-2024-1561?
Run the dependency tree command: 'pip show gradio'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g9cj-cfpp-4g2x",
  "modified" : "2024-05-10T16:31:55Z",
  "published" : "2024-04-16T00:30:33Z",
  "aliases" : [ "CVE-2024-1561" ],
  "summary" : "gradio vulnerable to Path Traversal",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "gradio"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.13.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-1561"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gradio-app/gradio/commit/24a583688046867ca8b8b02959c441818bdb34a2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gradio-app/gradio"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.com/bounties/4acf584e-2fe8-490e-878d-2d9bf2698338"
  }, {
    "type" : "WEB",
    "url" : "https://www.gradio.app/changelog#4-13-0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-29" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-16T18:21:39Z",
    "nvd_published_at" : "2024-04-16T00:15:08Z"
  }
}