Skip to content

The defaults settings for the CORS filter provided in Apache Tomcat are insecure and enable 'supportsCredentials' for all origins

Critical severity GitHub Reviewed Published Oct 17, 2018 to the GitHub Advisory Database • Updated Feb 23, 2024

Package

maven org.apache.tomcat.embed:tomcat-embed-core (Maven)

Affected versions

>= 8.5.0, < 8.5.32
>= 7.0.41, < 7.0.88
>= 9.0.0.M1, <= 9.0.8
>= 8.0.0RC1, < 8.0.53

Patched versions

8.5.32
7.0.88
9.0.9
8.0.53

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.

References

Published by the National Vulnerability Database May 16, 2018
Published to the GitHub Advisory Database Oct 17, 2018
Reviewed Jun 16, 2020
Last updated Feb 23, 2024

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

4.011%
(92nd percentile)

Weaknesses

CVE ID

CVE-2018-8014

GHSA ID

GHSA-r4x2-3cq5-hqvp

Source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.