Content Security Policy (CSP) Bypass Affecting angular package, versions >=1.5.0 <1.5.9
Snyk CVSS
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Test your applications- Snyk ID npm:angular:20161101
- published 23 Jan 2017
- disclosed 31 Oct 2016
- credit Martin Probst
How to fix?
Upgrade angular to version 1.5.9 or higher.
Overview
angular is a package that lets you write client-side web applications as if you had a smarter browser. It also lets you use HTML as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly.
Affected versions of this package are vulnerable to Content Security Policy (CSP) Bypass. Extension URIs (resource://...) bypass Content-Security-Policy in Chrome and Firefox and can always be loaded. Now if a site already has a XSS bug, and uses CSP to protect itself, but the user has an extension installed that uses Angular, an attacker can load Angular from the extension, and Angular's auto-bootstrapping can be used to bypass the victim site's CSP protection.