Security-Assessment.com discovered that a Java Applet making use of java.net.URLConnection class can be used to bypass same-of-origin (SOP) policy and domain based security controls in modern browsers when communication occurs between two domains that resolve to the same IP address. This advisory includes a Proof-of-Concept (PoC) demo and Java Applet source code. This demonstrates how the security vulnerability can be exploited to leak cookie information to an unauthorised domain, which resides on the same host IP address.
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