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Merge pull request #19784 from Napalys/js/express_middleware

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JS: Improve Express middleware taint tracking
This commit is contained in:
Napalys Klicius
2025-06-20 15:36:26 +02:00
committed by GitHub
parent b234d775ac c1b2fd86b2
commit 3fbe348f99
5 changed files with 67 additions and 3 deletions
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32
javascript/ql/test/query-tests/Security/CWE-918/RequestForgery.expected
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@@ -6,6 +6,10 @@
| apollo.serverSide.ts:8:39:8:64 | get(fil ... => {}) | apollo.serverSide.ts:7:36:7:44 | { files } | apollo.serverSide.ts:8:43:8:50 | file.url | The $@ of this request depends on a $@. | apollo.serverSide.ts:8:43:8:50 | file.url | URL | apollo.serverSide.ts:7:36:7:44 | { files } | user-provided value |
| apollo.serverSide.ts:18:37:18:62 | get(fil ... => {}) | apollo.serverSide.ts:17:34:17:42 | { files } | apollo.serverSide.ts:18:41:18:48 | file.url | The $@ of this request depends on a $@. | apollo.serverSide.ts:18:41:18:48 | file.url | URL | apollo.serverSide.ts:17:34:17:42 | { files } | user-provided value |
| axiosInterceptors.serverSide.js:11:26:11:40 | userProvidedUrl | axiosInterceptors.serverSide.js:19:21:19:28 | req.body | axiosInterceptors.serverSide.js:11:26:11:40 | userProvidedUrl | The $@ of this request depends on a $@. | axiosInterceptors.serverSide.js:11:26:11:40 | userProvidedUrl | endpoint | axiosInterceptors.serverSide.js:19:21:19:28 | req.body | user-provided value |
| serverSide2.js:17:28:17:47 | axios.get(targetUrl) | serverSide2.js:10:25:10:31 | req.url | serverSide2.js:17:38:17:46 | targetUrl | The $@ of this request depends on a $@. | serverSide2.js:17:38:17:46 | targetUrl | URL | serverSide2.js:10:25:10:31 | req.url | user-provided value |
| serverSide2.js:20:29:20:49 | axios.g ... etUrl1) | serverSide2.js:9:43:9:56 | req._parsedUrl | serverSide2.js:20:39:20:48 | targetUrl1 | The $@ of this request depends on a $@. | serverSide2.js:20:39:20:48 | targetUrl1 | URL | serverSide2.js:9:43:9:56 | req._parsedUrl | user-provided value |
| serverSide2.js:23:29:23:49 | axios.g ... etUrl2) | serverSide2.js:22:24:22:30 | req.url | serverSide2.js:23:39:23:48 | targetUrl2 | The $@ of this request depends on a $@. | serverSide2.js:23:39:23:48 | targetUrl2 | URL | serverSide2.js:22:24:22:30 | req.url | user-provided value |
| serverSide2.js:26:29:26:49 | axios.g ... etUrl3) | serverSide2.js:11:24:11:30 | req.url | serverSide2.js:26:39:26:48 | targetUrl3 | The $@ of this request depends on a $@. | serverSide2.js:26:39:26:48 | targetUrl3 | URL | serverSide2.js:11:24:11:30 | req.url | user-provided value |
| serverSide.js:18:5:18:20 | request(tainted) | serverSide.js:14:29:14:35 | req.url | serverSide.js:18:13:18:19 | tainted | The $@ of this request depends on a $@. | serverSide.js:18:13:18:19 | tainted | URL | serverSide.js:14:29:14:35 | req.url | user-provided value |
| serverSide.js:20:5:20:24 | request.get(tainted) | serverSide.js:14:29:14:35 | req.url | serverSide.js:20:17:20:23 | tainted | The $@ of this request depends on a $@. | serverSide.js:20:17:20:23 | tainted | URL | serverSide.js:14:29:14:35 | req.url | user-provided value |
| serverSide.js:24:5:24:20 | request(options) | serverSide.js:14:29:14:35 | req.url | serverSide.js:23:19:23:25 | tainted | The $@ of this request depends on a $@. | serverSide.js:23:19:23:25 | tainted | URL | serverSide.js:14:29:14:35 | req.url | user-provided value |
@@ -63,6 +67,18 @@ edges
| axiosInterceptors.serverSide.js:19:21:19:28 | req.body | axiosInterceptors.serverSide.js:19:11:19:17 | { url } | provenance | |
| axiosInterceptors.serverSide.js:20:5:20:25 | userProvidedUrl | axiosInterceptors.serverSide.js:11:26:11:40 | userProvidedUrl | provenance | |
| axiosInterceptors.serverSide.js:20:23:20:25 | url | axiosInterceptors.serverSide.js:20:5:20:25 | userProvidedUrl | provenance | |
| serverSide2.js:9:34:9:63 | qs.pars ... .query) | serverSide2.js:19:24:19:51 | req.par ... rsedUrl | provenance | |
| serverSide2.js:9:43:9:56 | req._parsedUrl | serverSide2.js:9:34:9:63 | qs.pars ... .query) | provenance | |
| serverSide2.js:10:25:10:31 | req.url | serverSide2.js:16:23:16:41 | req.parsedQuery.url | provenance | |
| serverSide2.js:11:24:11:30 | req.url | serverSide2.js:25:24:25:41 | req.SomeObject.url | provenance | |
| serverSide2.js:16:11:16:41 | targetUrl | serverSide2.js:17:38:17:46 | targetUrl | provenance | |
| serverSide2.js:16:23:16:41 | req.parsedQuery.url | serverSide2.js:16:11:16:41 | targetUrl | provenance | |
| serverSide2.js:19:11:19:55 | targetUrl1 | serverSide2.js:20:39:20:48 | targetUrl1 | provenance | |
| serverSide2.js:19:24:19:51 | req.par ... rsedUrl | serverSide2.js:19:11:19:55 | targetUrl1 | provenance | |
| serverSide2.js:22:11:22:36 | targetUrl2 | serverSide2.js:23:39:23:48 | targetUrl2 | provenance | |
| serverSide2.js:22:24:22:30 | req.url | serverSide2.js:22:11:22:36 | targetUrl2 | provenance | |
| serverSide2.js:25:11:25:47 | targetUrl3 | serverSide2.js:26:39:26:48 | targetUrl3 | provenance | |
| serverSide2.js:25:24:25:41 | req.SomeObject.url | serverSide2.js:25:11:25:47 | targetUrl3 | provenance | |
| serverSide.js:14:9:14:52 | tainted | serverSide.js:18:13:18:19 | tainted | provenance | |
| serverSide.js:14:9:14:52 | tainted | serverSide.js:20:17:20:23 | tainted | provenance | |
| serverSide.js:14:9:14:52 | tainted | serverSide.js:23:19:23:25 | tainted | provenance | |
@@ -163,6 +179,22 @@ nodes
| axiosInterceptors.serverSide.js:19:21:19:28 | req.body | semmle.label | req.body |
| axiosInterceptors.serverSide.js:20:5:20:25 | userProvidedUrl | semmle.label | userProvidedUrl |
| axiosInterceptors.serverSide.js:20:23:20:25 | url | semmle.label | url |
| serverSide2.js:9:34:9:63 | qs.pars ... .query) | semmle.label | qs.pars ... .query) |
| serverSide2.js:9:43:9:56 | req._parsedUrl | semmle.label | req._parsedUrl |
| serverSide2.js:10:25:10:31 | req.url | semmle.label | req.url |
| serverSide2.js:11:24:11:30 | req.url | semmle.label | req.url |
| serverSide2.js:16:11:16:41 | targetUrl | semmle.label | targetUrl |
| serverSide2.js:16:23:16:41 | req.parsedQuery.url | semmle.label | req.parsedQuery.url |
| serverSide2.js:17:38:17:46 | targetUrl | semmle.label | targetUrl |
| serverSide2.js:19:11:19:55 | targetUrl1 | semmle.label | targetUrl1 |
| serverSide2.js:19:24:19:51 | req.par ... rsedUrl | semmle.label | req.par ... rsedUrl |
| serverSide2.js:20:39:20:48 | targetUrl1 | semmle.label | targetUrl1 |
| serverSide2.js:22:11:22:36 | targetUrl2 | semmle.label | targetUrl2 |
| serverSide2.js:22:24:22:30 | req.url | semmle.label | req.url |
| serverSide2.js:23:39:23:48 | targetUrl2 | semmle.label | targetUrl2 |
| serverSide2.js:25:11:25:47 | targetUrl3 | semmle.label | targetUrl3 |
| serverSide2.js:25:24:25:41 | req.SomeObject.url | semmle.label | req.SomeObject.url |
| serverSide2.js:26:39:26:48 | targetUrl3 | semmle.label | targetUrl3 |
| serverSide.js:14:9:14:52 | tainted | semmle.label | tainted |
| serverSide.js:14:19:14:42 | url.par ... , true) | semmle.label | url.par ... , true) |
| serverSide.js:14:29:14:35 | req.url | semmle.label | req.url |

27
javascript/ql/test/query-tests/Security/CWE-918/serverSide2.js Normal file
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@@ -0,0 +1,27 @@
const express = require('express');
const axios = require('axios');
const qs = require('qs');
const app = express();
const PORT = 3000;
app.use((req, res, next) => {
req.parsedQueryFromParsedUrl = qs.parse(req._parsedUrl.query); // $Source[js/request-forgery]
req.parsedQuery.url = req.url || {}; // $Source[js/request-forgery]
req.SomeObject.url = req.url; // $Source[js/request-forgery]
next();
});
app.get('/proxy', async (req, res) => {
const targetUrl = req.parsedQuery.url;
const response = await axios.get(targetUrl); // $Alert[js/request-forgery]
const targetUrl1 = req.parsedQueryFromParsedUrl.url;
const response1 = await axios.get(targetUrl1); // $Alert[js/request-forgery]
const targetUrl2 = req.url || {}; // $Source[js/request-forgery]
const response2 = await axios.get(targetUrl2); // $Alert[js/request-forgery]
const targetUrl3 = req.SomeObject.url || {};
const response3 = await axios.get(targetUrl3); // $Alert[js/request-forgery]
});