🚨 [security] Update webpack-dev-middleware 5.3.4 → 7.1.1 (major) #1508

depfu · 2024-03-21T20:12:49Z

🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ webpack-dev-middleware (5.3.4 → 7.1.1) · Repo · Changelog

Security Advisories 🚨

🚨 Path traversal in webpack-dev-middleware

Summary

The webpack-dev-middleware middleware does not validate the supplied URL address sufficiently before returning the local file. It is possible to access any file on the developer's machine.

Details

The middleware can either work with the physical filesystem when reading the files or it can use a virtualized in-memory memfs filesystem.
If writeToDisk configuration option is set to true, the physical filesystem is used:
webpack-dev-middleware/src/utils/setupOutputFileSystem.js

Line 21 in 7ed24e0
    <tbody>
else if (context.options.writeToDisk !== true) {
The getFilenameFromUrl method is used to parse URL and build the local file path.
The public path prefix is stripped from the URL, and the unsecaped path suffix is appended to the outputPath:
webpack-dev-middleware/src/utils/getFilenameFromUrl.js

Line 82 in 7ed24e0
    <tbody>
if (
As the URL is not unescaped and normalized automatically before calling the midlleware, it is possible to use %2e and %2f sequences to perform path traversal attack.

PoC

A blank project can be created containing the following configuration file webpack.config.js:
module.exports = { devServer: { devMiddleware: { writeToDisk: true } } };

When started, it is possible to access any local file, e.g. /etc/passwd:
$ curl localhost:8080/public/..%2f..%2f..%2f..%2f../etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
Impact

The developers using webpack-dev-server or webpack-dev-middleware are affected by the issue. When the project is started, an attacker might access any file on the developer's machine and exfiltrate the content (e.g. password, configuration files, private source code, ...).

If the development server is listening on a public IP address (or 0.0.0.0), an attacker on the local network can access the local files without any interaction from the victim (direct connection to the port).

If the server allows access from third-party domains (CORS, Allow-Access-Origin: * ), an attacker can send a malicious link to the victim. When visited, the client side script can connect to the local server and exfiltrate the local files.

Recommendation

The URL should be unescaped and normalized before any further processing.

🚨 Path traversal in webpack-dev-middleware

Summary

The webpack-dev-middleware middleware does not validate the supplied URL address sufficiently before returning the local file. It is possible to access any file on the developer's machine.

Details

The middleware can either work with the physical filesystem when reading the files or it can use a virtualized in-memory memfs filesystem.
If writeToDisk configuration option is set to true, the physical filesystem is used:
webpack-dev-middleware/src/utils/setupOutputFileSystem.js

Line 21 in 7ed24e0
    <tbody>
else if (context.options.writeToDisk !== true) {
The getFilenameFromUrl method is used to parse URL and build the local file path.
The public path prefix is stripped from the URL, and the unsecaped path suffix is appended to the outputPath:
webpack-dev-middleware/src/utils/getFilenameFromUrl.js

Line 82 in 7ed24e0
    <tbody>
if (
As the URL is not unescaped and normalized automatically before calling the midlleware, it is possible to use %2e and %2f sequences to perform path traversal attack.

PoC

A blank project can be created containing the following configuration file webpack.config.js:
module.exports = { devServer: { devMiddleware: { writeToDisk: true } } };

When started, it is possible to access any local file, e.g. /etc/passwd:
$ curl localhost:8080/public/..%2f..%2f..%2f..%2f../etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
Impact

The developers using webpack-dev-server or webpack-dev-middleware are affected by the issue. When the project is started, an attacker might access any file on the developer's machine and exfiltrate the content (e.g. password, configuration files, private source code, ...).

If the development server is listening on a public IP address (or 0.0.0.0), an attacker on the local network can access the local files without any interaction from the victim (direct connection to the port).

If the server allows access from third-party domains (CORS, Allow-Access-Origin: * ), an attacker can send a malicious link to the victim. When visited, the client side script can connect to the local server and exfiltrate the local files.

Recommendation

The URL should be unescaped and normalized before any further processing.

Release Notes

7.1.1

7.1.1 (2024-03-21)

Bug Fixes

ContentLength incorrectly set for empty files (#1785) (0f3e25e)

improve perf (#1777) (5b47c92)

types: make types better (#1786) (e4d183e)

7.1.0

7.1.0 (2024-03-19)

Features

prefer to use fs.createReadStream over fs.readFileSync to read files (ab533de)

Bug Fixes

cleaup stream and handle errors (#1769) (1258fdd)

security: do not allow to read files above (#1771) (e10008c)

7.0.0

7.0.0 (2023-12-26)

⚠ BREAKING CHANGES

minimum supported Node.js version is 18.12.0 (#1694)

updated memfs@4 (#1693)

6.1.2

6.1.2 (2024-03-20)

Bug Fixes

security: do not allow to read files above (#1778) (9670b34)

6.1.1

6.1.1 (2023-05-16)

Bug Fixes

types: methods should be string array (#1550) (41b2f77)

6.1.0

6.1.0 (2023-05-03)

Features

added mimeTypeDefault option (#1527) (503d290)

added modifyResponseData option (#1529) (35dac70)

Bug Fixes

don't use memory-fs when writeToDisk is true (#1537) (852245e)

faster startup time (f5f033b)

6.0.2

6.0.2 (2023-03-19)

Bug Fixes

make webpack optional peerDep (#1488) (81c39ba)

6.0.1

6.0.1 (2022-11-28)

Bug Fixes

update schema for index and methods properties (#1397) (cda328e)

6.0.0

6.0.0 (2022-11-20)

⚠ BREAKING CHANGES

minimum supported webpack version is 5.0.0

minimum supported Nodejs version is 14.15.0

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

✳️ @babel/plugin-transform-modules-commonjs (7.18.6 → 7.25.9) · Repo · Changelog

Release Notes

Too many releases to show here. View the full release notes.

Commits

See the full diff on Github. The new version differs by 14 commits:

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depfu bot added the depfu label Mar 21, 2024

Update webpack-dev-middleware to version 7.1.1

f4eb238

depfu bot force-pushed the depfu/update/yarn/webpack-dev-middleware-7.1.1 branch from 421759e to f4eb238 Compare October 25, 2024 18:06

depfu bot changed the title ~~🚨 [security] Update webpack-dev-middleware 4.3.0 → 7.1.1 (major)~~ 🚨 [security] Update webpack-dev-middleware 5.3.4 → 7.1.1 (major) Oct 25, 2024

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🚨 [security] Update webpack-dev-middleware 5.3.4 → 7.1.1 (major) #1508

🚨 [security] Update webpack-dev-middleware 5.3.4 → 7.1.1 (major) #1508

depfu bot commented Mar 21, 2024 •

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🚨 [security] Update webpack-dev-middleware 5.3.4 → 7.1.1 (major) #1508

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🚨 [security] Update webpack-dev-middleware 5.3.4 → 7.1.1 (major) #1508

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depfu bot commented Mar 21, 2024 • edited Loading

What changed?

✳️ webpack-dev-middleware (5.3.4 → 7.1.1) · Repo · Changelog

Summary

Details

PoC

Impact

Recommendation

Summary

Details

PoC

Impact

Recommendation

7.1.1 (2024-03-21)

Bug Fixes

7.1.0 (2024-03-19)

Features

Bug Fixes

7.0.0 (2023-12-26)

⚠ BREAKING CHANGES

6.1.2 (2024-03-20)

Bug Fixes

6.1.1 (2023-05-16)

Bug Fixes

6.1.0 (2023-05-03)

Features

Bug Fixes

6.0.2 (2023-03-19)

Bug Fixes

6.0.1 (2022-11-28)

Bug Fixes

6.0.0 (2022-11-20)

⚠ BREAKING CHANGES

✳️ @​babel/plugin-transform-modules-commonjs (7.18.6 → 7.25.9) · Repo · Changelog

depfu bot commented Mar 21, 2024 •

edited

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✳️ @babel/plugin-transform-modules-commonjs (7.18.6 → 7.25.9) · Repo · Changelog