Access Restriction Bypass Affecting werkzeug package, versions [,2.2.3)
Threat Intelligence
EPSS
0.06% (30th
percentile)
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-PYTHON-WERKZEUG-3319935
- published 15 Feb 2023
- disclosed 15 Feb 2023
- credit Marco Squarcina
Introduced: 15 Feb 2023
CVE-2023-23934 Open this link in a new tabHow to fix?
Upgrade werkzeug to version 2.2.3 or higher.
Overview
Affected versions of this package are vulnerable to Access Restriction Bypass that allows a malicious application on an adjacent subdomain to present "nameless" cookies that look like =value instead of key=value and have them accepted by the affected browser. For example, a cookie like =__Host-test=bad would be parsed as __Host-test=bad and the key treated as valid while the value is ignored.
References
CVSS Scores
version 3.1