Natural Language Toolkit (NLTK): DNS-rebinding SSRF filter bypass in nltk.pathsec.urlopen (nltk.download / nltk.data.load) defeats ENFORCE mode

Summary nltk.pathsec provides an SSRF filter that NLTK documents as a security control, blocking loopback, private, link-local, and multicast ranges including obfuscated forms and recommending strict ENFORCE mode for security-sensitive environments. The filter is bypassable by DNS rebinding:...

How to Configure Internal Beacon for Single FQDN on StoreFront

This article describes how to Configure Internal Beacon for Single FQDN on StoreFront. Background When you access any URL in Citrix Receiver, it tries to resolve both internal and external beacons. First it will resolve the internal beacon, followed by the external beacon, and then Citrix Receive...