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.
[
{
"product": "Apache Tomcat",
"vendor": "Apache Software Foundation",
"versions": [
{
"status": "affected",
"version": "9.0.0.M1 to 9.0.8"
},
{
"status": "affected",
"version": "8.5.0 to 8.5.31"
},
{
"status": "affected",
"version": "8.0.0.RC1 to 8.0.52"
},
{
"status": "affected",
"version": "7.0.41 to 7.0.88"
}
]
}
]
tomcat.apache.org/security-7.html
tomcat.apache.org/security-8.html
tomcat.apache.org/security-9.html
www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
www.securityfocus.com/bid/104203
www.securitytracker.com/id/1040998
www.securitytracker.com/id/1041888
access.redhat.com/errata/RHSA-2018:2469
access.redhat.com/errata/RHSA-2018:2470
access.redhat.com/errata/RHSA-2018:3768
access.redhat.com/errata/RHSA-2019:0450
access.redhat.com/errata/RHSA-2019:0451
access.redhat.com/errata/RHSA-2019:1529
access.redhat.com/errata/RHSA-2019:2205
lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba%40%3Cdev.tomcat.apache.org%3E
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lists.debian.org/debian-lts-announce/2018/06/msg00008.html
lists.debian.org/debian-lts-announce/2019/08/msg00015.html
seclists.org/bugtraq/2019/Dec/43
security.netapp.com/advisory/ntap-20181018-0002/
usn.ubuntu.com/3665-1/
www.debian.org/security/2019/dsa-4596
www.oracle.com/security-alerts/cpuapr2020.html