DHS: KRACK vulnerability puts every Wi-Fi connection at risk

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According to a report by Ars Technica, the researchers have indexed the security flaws as, "CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082, CVE-2017-13084, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088".

"Note that if your device supports Wi-Fi, it is most likely affected", he said. The attack, however, is "exceptionally devastating" for devices that run Android 6.0, Vanhoef found. Google did not respond to a request for comment.

The US-CERT has warned of several key management vulnerabilities in WPA2 security protocol that may affect all Wi-Fi devices. After verifying the Wi-Fi password for the network itself, the encryption key for the session is negotiated.

The Verge has reached out to a variety of Android phone makers to clarify when security patches will reach handsets, and we'll update you accordingly.

'WPA2 is now the recommended option for securing your WI-FI network; the flaw, if successful, and if you're not using any other advance features ( VPN, encrypted data etc) could enable a hacker to eavesdrop on your data and or possibly gain access to any unsecured shares available on the same network, ' says Mark James, Security Specialist at ESET.

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The researcher goes on to say that WPA2 implementations can be patched in a backwards-compatible manner, meaning that a patched client can communicate with an unpatched access point, and vice versa.

In short, nearly all Wi-Fi devices featuring the WPA2 security protocol are vulnerable to key flaws in its 4-way handshake process.

The Wi-Fi Alliance, a network of companies responsible for Wi-Fi, has responded to the disclosure of the vulnerabilities.

Using what Vanheuf calls a Key Reinstallation AttaCKs (KRACKs), he showed how someone could get data from an Android device by tricking the user into installing an old key.

Many operating systems and applications (including web browsers) use additional security methods to prevent eavesdropping, but while sensitive data like credit card information might be hard for eavesdropping hackers to extract, it wouldn't be impossible. "This creates an encrypted tunnel between your device and a VPN server which then routes you onto whatever website or app you are trying to access".

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Causing extreme concern, the U.S. Computer Emergency Readiness Team has come forward with a specific warning pertaining to the flaw. The good news is this attack is not able to steal data when connecting to a secured website that is properly configured.

The firm said in a statement: "This issue can be resolved through straightforward software updates and the Wi-Fi industry, including major platform providers, has already started deploying patches to Wi-Fi users".

Attacks can be carried out only in close proximity to a WiFi network. Second, you'll want to consider patching your router firmware if the manufacturer doesn't update it for you automatically. And contrary to what one might assume, changing passwords won't do much better than satisfying oneself.

The fault lies in the setting of encryption key.

All WiFi users are advised to update their devices to the latest security update as soon as it's available.

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