Arbitrary Code Injection Affecting underscore Open this link in a new tab package, versions >=1.13.0-0 <1.13.0-2 >=1.3.2 <1.12.1
Exploit Maturity
Proof of concept
Attack Complexity
High
Privileges Required
High
Confidentiality
High
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications-
snyk-id
SNYK-JS-UNDERSCORE-1080984
-
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 underscore
to version 1.13.0-2, 1.12.1 or higher.
Overview
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("")();