The 0.0.0.0 Day Vulnerability Is Almost Old Enough To Drink, And Remains A Threat
The news from Bleeping Computer about the fact that there is a 18 year old browser vulnerability is rather depressing, though there is a tiny bit of amusement to be gleaned. It seems the 0.0.0.0 Day Vulnerability only applies to Apple and PCs running Linux, both of which are often lauded as being much more secure than Windows boxes. In this specific case the tables are turned and Microsoft’s OS is the only safe one. We can thank the lack of consistent security mechanisms across browsers as well as the lack of a standard way of handling the IP address 0.0.0.0.
Malicious websites gain access to services running on a local computer by sending an HTTP request to 0.0.0.0 and referencing that service. As most of us aren’t running such services on our machines, the browser vulnerability isn’t something to be overly worried about. However this vulnerability is perfect for targeting AI workloads on development machines and this is likely why we’ve seen a huge uptick in 0.0.0.0 attacks over the past couple of months.
Chrome, Firefox and Safari will all finally receive patches to resolve the issue, but if you happen to be running something which could be vulnerable to the attack you should check out the mitigations mentioned in the news post and secure yourself as best as possible. If a website does take advantage of this browser vulnerability, it can leverage it in a variety of ways, from arbitrary code execution, reverse shells, to configuration alterations.
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