Arbitrary Code Injection Affecting org.webjars.npm:underscore package, versions [0,1.13.1)
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
1.08% (85th
percentile)
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Test your applications- Snyk ID SNYK-JAVA-ORGWEBJARSNPM-1081503
- published 29 Mar 2021
- disclosed 2 Mar 2021
- credit Alessio Della Libera (@d3lla)
Introduced: 2 Mar 2021
CVE-2021-23358 Open this link in a new tabHow to fix?
Upgrade org.webjars.npm:underscore to version 1.13.1 or higher.
Overview
org.webjars.npm: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("")();
References
CVSS Scores
version 3.1