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Mozilla Firefox < 50.0.1 Authentication Bypass



The remote host has a web browser installed that is vulnerable to an authentication bypass attack vector.


Versions of Mozilla Firefox prior to 50.0.1 are unpatched for a flaw in the 'nsScriptSecurityManager::GetChannelResultPrincipal()' function in 'caps/nsScriptSecurityManager.cpp' that is triggered when handling HTTP redirects to 'data: URLs'. This may allow a context-dependent attacker to bypass the same-origin policy.


Upgrade to Firefox version 50.0.1 or later.