Open Redirect Affecting urijs package, versions <1.19.7
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-URIJS-1319803
- published16 Jul 2021
- disclosed16 Jul 2021
- creditready-research
Introduced: 16 Jul 2021
CVE-2021-3647 (opens in a new tab)How to fix?
Upgrade urijs to version 1.19.7 or higher.
Overview
urijs is a Javascript library for working with URLs.
Affected versions of this package are vulnerable to Open Redirect. It mishandles certain uses of backslash such as https:/\ and interprets the URI as a relative path. Browsers usually accept backslashes after the protocol, and treat it as a normal slash.
PoC
var URI = require('urijs');
var url = new URI("https:/\/\/\www.google.com");
console.log(url); // Which will return --> path: "/www.google.com"