chore(deps): update dependency nuxt to v3.12.4 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
nuxt (source)	3.12.3 -> 3.12.4

GitHub Vulnerability Alerts

CVE-2024-34343

Summary

The navigateTo function attempts to blockthe javascript: protocol, but does not correctly use API's provided by unjs/ufo. This library also contains parsing discrepancies.

Details

The function first tests to see if the specified URL has a protocol. This uses the unjs/ufo package for URL parsing. This function works effectively, and returns true for a javascript: protocol.

After this, the URL is parsed using the parseURL function. This function will refuse to parse poorly formatted URLs. Parsing javascript:alert(1) returns null/"" for all values.

Next, the protocol of the URL is then checked using the isScriptProtocol function. This function simply checks the input against a list of protocols, and does not perform any parsing.

The combination of refusing to parse poorly formatted URLs, and not performing additional parsing means that script checks fail as no protocol can be found. Even if a protocol was identified, whitespace is not stripped in the parseURL implementation, bypassing the isScriptProtocol checks.

Certain special protocols are identified at the top of parseURL. Inserting a newline or tab into this sequence will block the special protocol check, and bypass the latter checks.

PoC

POC - https://stackblitz.com/edit/nuxt-xss-navigateto?file=app.vue

Attempt payload X, then attempt payload Y.

Impact

XSS, access to cookies, make requests on user's behalf.

Recommendations

As always with these bugs, the URL constructor provided by the browser is always the safest method of parsing a URL.

Given the cross-platform requirements of nuxt/ufo a more appropriate solution is to make parsing consistent between functions, and to adapt parsing to be more consistent with the WHATWG URL specification.

Note

I've reported this vulnerability here as it is unclear if this is a bug in ufo or a misuse of the ufo library.

This ONLY has impact after SSR has occured, the javascript: protocol within a location header does not trigger XSS.

CVE-2024-34344

Summary

Due to the insufficient validation of the path parameter in the NuxtTestComponentWrapper, an attacker can execute arbitrary JavaScript on the server side, which allows them to execute arbitrary commands.

Details

While running the test, a special component named NuxtTestComponentWrapper is available.
https://github.com/nuxt/nuxt/blob/4779f5906fa4d3c784c2e2d6fe5a5c5f181faaec/packages/nuxt/src/app/components/nuxt-root.vue#L42-L43

This component loads the specified path as a component and renders it.

https://github.com/nuxt/nuxt/blob/4779f5906fa4d3c784c2e2d6fe5a5c5f181faaec/packages/nuxt/src/app/components/test-component-wrapper.ts#L9-L27

There is a validation for the path parameter to check whether the path traversal is performed, but this check is not sufficient.

https://github.com/nuxt/nuxt/blob/4779f5906fa4d3c784c2e2d6fe5a5c5f181faaec/packages/nuxt/src/app/components/test-component-wrapper.ts#L15-L19

Since import(...) uses query.path instead of the normalized path, a non-normalized URL can reach the import(...) function.
For example, passing something like ./components/test normalizes path to /root/directory/components/test, but import(...) still receives ./components/test.

By using this behavior, it's possible to load arbitrary JavaScript by using the path like the following:

data:text/javascript;base64,Y29uc29sZS5sb2coMSk

Since resolve(...) resolves the filesystem path, not the URI, the above URI is treated as a relative path, but import(...) sees it as an absolute URI, and loads it as a JavaScript.

PoC

1. Create a nuxt project and run it in the test mode:

npx nuxi@latest init test
cd test
TEST=true npm run dev

2. Open the following URL:

http://localhost:3000/__nuxt_component_test__/?path=data%3Atext%2Fjavascript%3Bbase64%2CKGF3YWl0IGltcG9ydCgnZnMnKSkud3JpdGVGaWxlU3luYygnL3RtcC90ZXN0JywgKGF3YWl0IGltcG9ydCgnY2hpbGRfcHJvY2VzcycpKS5zcGF3blN5bmMoIndob2FtaSIpLnN0ZG91dCwgJ3V0Zi04Jyk

3. Confirm that the output of whoami is written to /tmp/test

Demonstration video: https://www.youtube.com/watch?v=FI6mN8WbcE4

Impact

Users who open a malicious web page in the browser while running the test locally are affected by this vulnerability, which results in the remote code execution from the malicious web page.
Since web pages can send requests to arbitrary addresses, a malicious web page can repeatedly try to exploit this vulnerability, which then triggers the exploit when the test server starts.

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Release Notes

nuxt/nuxt (nuxt)

v3.12.4

Compare Source

3.12.4 is the next regularly scheduled patch release.

👉 Changelog

compare changes

🔥 Performance

• vite: Start warmups after nitro build (#​27963)
• vite: Avoid extra resolve call for resolveId in layers (#​27971)
• kit,nuxt,schema,vite,webpack: Use explicit exports (#​27998)

🩹 Fixes

• schema: Resolve public alias correctly (#​27975)
• nuxt: Omit rendering payload prefetch when noScripts (#​27972)
• nuxt: Add / as fallback if page can't be identified (e6109b226)
• ui-templates: Validate templates with html-validate (#​28024)
• schema: Don't constrain postcss plugin options (#​28045)
• kit: Remove exports from v4 branch (5c8312e9b)
• nuxt: Use unhead key for ad-hoc module options (#​28088)
• nuxt: Use native vue-router composables (#​28114)
• kit: Ensure getNuxtVersion returns string (#​28125)
• nuxt: Always prerender at least one page with crawler (#​28131)
• nuxt: Consider doc scroll-padding-top in scrollBehavior (#​28083)
• nuxt: Only warn when useAsyncData returns undefined (#​28154)
• nuxt: Revert change to getCachedData null response (d10cea11b)
• schema: Don't use app/ as srcDir if it doesn't exist (#​28176)
• kit: Normalise serverDir within layers using v4 compat (#​28177)
• nuxt: Allow getCachedData to return undefined (#​28187)
• nuxt: Use addEventListener to register cookie store listener (#​28193)
• nuxt: Merge route meta properties with scanned meta (#​28170)
• nuxt: Prevent duplicate set-cookie headers (#​28211)

💅 Refactors

• schema,vite,webpack: Rework postcss module loading (#​27946)
• nuxt: Remove _registeredComponents from ssrContext (#​27819)
• nuxt: Use errx to handle dev log traces (#​28027)

📖 Documentation

• Fix link (83bd4fde9)
• Fix Cloudflare spelling (#​27989)
• Update example to use nuxtApp.runWithContext (#​28000)
• Remove deprecated pending variable from data fetching docs (#​28011)
• Clarify xrsp danger (#​28053)
• Deprecate pending and emphasis undefined (#​28113)
• Update phrasing in route announcer (#​28108)
• Use code groups for install commands in module guide (#​28094)
• Capitalize text (#​28056)
• Mention content in upgrade guide v4 folder structure (#​28090)
• Remove a resolved issue from view transition docs (#​28091)
• Clarify navigateTo is not for nitro routes (#​28092)
• Warn about nested islands (#​28062)
• Add info about layers/ directory (#​28128)
• Codemods for migrating to Nuxt 4 (#​28072)

✅ Tests

• Add typeCheck test in minimal build (#​28166)

🤖 CI

• Run prepare step before linting docs (f8fbefb42)
• Run prepare step before linting docs (d629b82b3)

❤️ Contributors

• Daniel Roe (@​danielroe)
• arshcodemod (@​arshcodemod)
• xjccc (@​xjccc)
• Julien Huang (@​huang-julien)
• BoogieBen (@​boogie-ben)
• Santiago A (@​santiagoaloi)
• Bobbie Goede (@​BobbieGoede)
• John Tanzer (@​moshetanzer)
• Thomas (@​ThomasWT)
• @​beer (@​iiio2)
• Dominic (@​rexhent)
• Alex Liu (@​Mini-ghost)
• Florian Metz (@​Timeraa)
• Liran Tal (@​lirantal)
• Daniel Kelly (@​danielkellyio)
• Daniel Flanagan (@​FlantasticDan)
• 山吹色御守 (@​KazariEX)
• izzy goldman (@​izzygld)
• Anthony Fu (@​antfu)

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