ESB-2018.1509 - [Win][UNIX/Linux] Apache Tomcat: Reduced security - Remote/unauthenticated 2018-05-17

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1509
             Apache Tomcat fixes insecure CORS filter defaults
                                17 May 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Apache Tomcat
Publisher:         Apache
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-8014  

Original Bulletin: 
   http://mail-archives.apache.org/mod_mbox/tomcat-announce/201805.mbox/%3ccb3c84a5-b3e7-2bfa-ba56-b97ecd934634@apache.org%3e
   http://tomcat.apache.org/security-9.html
   http://tomcat.apache.org/security-8.html
   http://tomcat.apache.org/security-7.html

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CVE-2018-8014 Insecure defaults for CORS filter

Severity: Low

Vendor: The Apache Software Foundation

Versions Affected:
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

Description:
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.

Mitigation:
Users of the affected versions should apply one of the following
mitigations.
- - 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

History:
2018-05-15 Original advisory

References:
[1] http://tomcat.apache.org/security-9.html
[2] http://tomcat.apache.org/security-8.html
[3] http://tomcat.apache.org/security-7.html

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