Description

The defaults settings for the CORS filter provided in Apache Tomcat 9.0.0.M1 to 9.0.8, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, 7.0.41 to 7.0.88 are insecure and enable 'supportsCredentials' for all origins. It is expected that users of the CORS filter will have configured it appropriately for their environment rather than using it in the default configuration. Therefore, it is expected that most users will not be impacted by this issue.

Mitigation

There is no non vulnerable version of this component/package. We recommend investigating alternative components or a potential mitigating control.

>Mitigation:
>Users of the affected versions should apply one of the following
>mitigations.
>- Configure the filter appropriately for your environment

Reference: [https://lists.apache.org/thread.html/fbfb713e4f8a4c0f81089b89450828011343593800cae3fb629192b1@%3Cannounce.tomcat.apache.org%3E](https://lists.apache.org/thread.html/fbfb713e4f8a4c0f81089b89450828011343593800cae3fb629192b1@%3Cannounce.tomcat.apache.org%3E)

Related links:

• http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-8014

• http://tomcat.apache.org/security-7.html

• http://tomcat.apache.org/security-8.html

• http://tomcat.apache.org/security-9.html

• https://bz.apache.org/bugzilla/show_bug.cgi?id=62343

• https://lists.apache.org/thread.html/fbfb713e4f8a4c0f81089b89450828011343593800cae3fb629192b1@%3Cannounce.tomcat.apache.org%3E