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AUSCERT External Security Bulletin Redistribution
Apache Tomcat fixes insecure CORS filter defaults
17 May 2018
AusCERT Security Bulletin Summary
Product: Apache Tomcat
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Reduced Security -- Remote/Unauthenticated
CVE Names: CVE-2018-8014
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CVE-2018-8014 Insecure defaults for CORS filter
Vendor: The Apache Software Foundation
Apache Tomcat 9.0.0.M1 to 9.0.8
Apache Tomcat 8.5.0 to 8.5.31
Apache Tomcat 8.0.0.RC1 to 8.0.52
Apache Tomcat 7.0.41 to 7.0.88
The defaults settings for the CORS filter 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.
Users of the affected versions should apply one of the following
- - Configure the filter appropriately for your environment
Secure defaults will be provided in the following versions:
- - Apache Tomcat 9.0.9 or later when released
- - Apache Tomcat 8.5.32 or later when released
- - Apache Tomcat 8.0.53 or later when released
- - Apache Tomcat 7.0.89 or later when released
2018-05-15 Original advisory
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