[Renovate] Update dependency webpack-dev-middleware to v5.3.4 [SECURITY]

[appsec-renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
webpack-dev-middleware	dependencies	minor	5.0.0 → 5.3.4

---

Path traversal in webpack-dev-middleware

CVE-2024-29180 / GHSA-wr3j-pwj9-hqq6

More information

Details

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:
https://github.com/webpack/webpack-dev-middleware/blob/7ed24e0b9f53ad1562343f9f517f0f0ad2a70377/src/utils/setupOutputFileSystem.js#L21

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:
https://github.com/webpack/webpack-dev-middleware/blob/7ed24e0b9f53ad1562343f9f517f0f0ad2a70377/src/utils/getFilenameFromUrl.js#L82
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.

Severity

• CVSS Score: 7.4 / 10 (High)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

References

• https://github.com/webpack/webpack-dev-middleware/security/advisories/GHSA-wr3j-pwj9-hqq6
• https://nvd.nist.gov/vuln/detail/CVE-2024-29180
• https://github.com/webpack/webpack-dev-middleware/commit/189c4ac7d2344ec132a4689e74dc837ec5be0132
• https://github.com/webpack/webpack-dev-middleware/commit/9670b3495da518fe667ff3428c5e4cb9f2f3d353
• https://github.com/webpack/webpack-dev-middleware/commit/e10008c762e4d5821ed6990348dabf0d4d93a10e
• https://github.com/webpack/webpack-dev-middleware
• https://github.com/webpack/webpack-dev-middleware/blob/7ed24e0b9f53ad1562343f9f517f0f0ad2a70377/src/utils/getFilenameFromUrl.js#L82
• https://github.com/webpack/webpack-dev-middleware/blob/7ed24e0b9f53ad1562343f9f517f0f0ad2a70377/src/utils/setupOutputFileSystem.js#L21
• https://github.com/webpack/webpack-dev-middleware/releases/tag/v5.3.4
• https://github.com/webpack/webpack-dev-middleware/releases/tag/v6.1.2
• https://github.com/webpack/webpack-dev-middleware/releases/tag/v7.1.0

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

---

Release Notes

webpack/webpack-dev-middleware (webpack-dev-middleware)

v5.3.4

Compare Source

5.3.4 (2024-03-20)

Bug Fixes

• security: do not allow to read files above (#​1779) (189c4ac)

v5.3.3

Compare Source

⚠ BREAKING CHANGES

• minimum supported webpack version is 5.0.0
• minimum supported Nodejs version is 14.15.0

5.3.3 (2022-05-18)

Bug Fixes

• types for Request and Response (#​1271) (eeb8aa8)

5.3.2 (2022-05-17)

Bug Fixes

• node types (#​1195) (d68ab36)

5.3.1 (2022-02-01)

Bug Fixes

• types (#​1187) (0f82e1d)

v5.3.2

Compare Source

⚠ BREAKING CHANGES

• minimum supported webpack version is 5.0.0
• minimum supported Nodejs version is 14.15.0

5.3.3 (2022-05-18)

Bug Fixes

• types for Request and Response (#​1271) (eeb8aa8)

5.3.2 (2022-05-17)

Bug Fixes

• node types (#​1195) (d68ab36)

5.3.1 (2022-02-01)

Bug Fixes

• types (#​1187) (0f82e1d)

v5.3.1

Compare Source

⚠ BREAKING CHANGES

• minimum supported webpack version is 5.0.0
• minimum supported Nodejs version is 14.15.0

5.3.3 (2022-05-18)

Bug Fixes

• types for Request and Response (#​1271) (eeb8aa8)

5.3.2 (2022-05-17)

Bug Fixes

• node types (#​1195) (d68ab36)

5.3.1 (2022-02-01)

Bug Fixes

• types (#​1187) (0f82e1d)

v5.3.0

Compare Source

⚠ BREAKING CHANGES

• minimum supported webpack version is 5.0.0
• minimum supported Nodejs version is 14.15.0

5.3.3 (2022-05-18)

Bug Fixes

• types for Request and Response (#​1271) (eeb8aa8)

5.3.2 (2022-05-17)

Bug Fixes

• node types (#​1195) (d68ab36)

5.3.1 (2022-02-01)

Bug Fixes

• types (#​1187) (0f82e1d)

v5.2.2

Compare Source

Features

• added types (a2fa77f)
• removed cjs wrapper (#​1146) (b6d53d3)

5.2.2 (2021-11-17)

Chore

• update schema-utils package to 4.0.0 version

5.2.1 (2021-09-25)

• internal release, no visible changes and features

v5.2.1

Compare Source

Features

• added types (a2fa77f)
• removed cjs wrapper (#​1146) (b6d53d3)

5.2.2 (2021-11-17)

Chore

• update schema-utils package to 4.0.0 version

5.2.1 (2021-09-25)

• internal release, no visible changes and features

v5.2.0

Compare Source

Features

• added types (a2fa77f)
• removed cjs wrapper (#​1146) (b6d53d3)

5.2.2 (2021-11-17)

Chore

• update schema-utils package to 4.0.0 version

5.2.1 (2021-09-25)

• internal release, no visible changes and features

v5.1.0

Compare Source

Features

• don't read full file if Range header is present (e8b21f0)
• output more information on errors (#​1024) (7df9e44)

Bug Fixes

• reduced package size by removing mem package (#​1027) (0d55268)

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate.