Description
It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.
Remediation
References
https://access.redhat.com/errata/RHSA-2018:0478
https://access.redhat.com/errata/RHSA-2018:0479
https://access.redhat.com/errata/RHSA-2018:0480
https://access.redhat.com/errata/RHSA-2018:0481
https://bugzilla.redhat.com/show_bug.cgi?id=1534343
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