What Wi-Fi Security Problem? Windows is Already Patched

Protocol-level security flaws in WPA2 may affect ALL Wi-Fi devices!

As of this writing, the attack has not been seen in the wild.

Device and OS vendors are now working on security updates.

The vulnerability consists of a weakness in the WPA2 protocol, which is a vital part of every WiFi network because it secures all networks.

From reading the advisory on this flaw, it appears that the most recent versions of Windows and Apple's iOS are either not vulnerable to this flaw or are only exposed in very specific circumstances. Hackers can steal sensitive data that has been decrypted a method called KRACK, or Key Reinstallation Attacks. This kind of attack does not rely on password guessing. Nearly every company that included wireless capability in their devices or software needs to issue an update, as this exhaustive list compiled by the government-sponsored U.S. Computer Emergency Readiness Team indicates.

There is still a question mark on Wi-Fi routers however.

Researchers who discovered the flaw said it has to do with the four-way handshake that creates the key for data traffic encryption. "It is hard to implement".

2. Avoid using public Wi-Fi networks.

.

Vanhoef has responded to the difficulty question in the blog.

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Vanhoef uploaded a video on YouTube outlining how the attack works. All you can do is wait for security updates for your devices. "While you wait for an update, you can use your Wi-Fi in hidden mode".

The vulnerability, dubbed "Krack", has been described as a "fundamental flaw" in wireless security techniques by experts.

However, because this attack compromises the WPA2 protocol that both your wireless devices and wireless access point use, MAC filtering is not a particularly effective deterrent against this attack. "We're aware of the issue, and we will be patching any affected devices in the coming weeks". Microsoft says it's already deployed patches.

When did Microsoft release the security updates to address this vulnerability?

In a statement issued on Monday, the WiFi Alliance said that security updates to contain the issue were simple and already under way.

The best way to protect yourself at the moment is to ensure that all computing devices and mobile devices that connect with Wi-Fi are properly updated with the latest software and security patches. "Users can expect all their Wi-Fi devices, whether patched or unpatched, to continue working well together".

Finnish security firm F-Secure said experts have always been cautious about Wi-Fi's ability to withstand security challenges of the 21st century. Therefore, any correct implementation of WPA2 is likely to be affected. "Note that if your device supports Wi-Fi, it is most likely affected". "Depending on the network configuration, it is also possible to inject and manipulate data".

This means that the hacker who is inside the physical range of one's WiFi network can crack the Wi-Fi password. It recommended installing vendor updates on affected products, such as routers provided by Cisco Systems or Juniper Networks.

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