# CVE-2018-12120: Node.js 6: Unprotected Primary Channel

CVE-2018-12120 is fixed in Node.js 6 on 1 platform by Node.js 6 6.17.0 (version 6.17.0), released February 28, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-12120
- Priority: High
- CVSS: 8.1
- EPSS: 0.0428
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 28, 2018
- Weakness: CWE-419: Unprotected Primary Channel
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2018-12120

## Description

Node.js: All versions prior to Node.js 6.15.0: Debugger port 5858 listens on any interface by default: When the debugger is enabled with `node --debug` or `node debug`, it listens to port 5858 on all interfaces by default. This may allow remote computers to attach to the debug port and evaluate arbitrary JavaScript. The default interface is now localhost. It has always been possible to start the debugger on a specific interface, such as `node --debug=localhost`. The debugger was removed in Node.js 8 and replaced with the inspector, so no versions from 8 and later are vulnerable.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Node.js 6 | 6.17.0 | [Node.js 6 6.17.0](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.6-6.17.0.md) | Feb 28, 2019 |

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