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Researchers Discover New Ways to Hack WPA3 Protected WiFi Passwords

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The same team of cybersecurity researchers World Health Organization discovered many severe vulnerabilities, jointly dubbed as Dragonblood, within the recently launched WPA3 WiFi security customary few months agone has currently uncovered 2 a lot of flaws that would enable attackers to hack WiFi passwords.
WPA, or WiFi Protected Access, could be a WiFi security customary that has been designed to attest wireless devices victimization the Advanced secret writing customary (AES) protocol and supposed to forestall hackers from eavesdropping on your wireless knowledge.
The WiFi Protected Access III (WPA3) protocol was launched a year agone in a trial to handle technical shortcomings of the WPA2 protocol from the bottom, that has long been thought-about to be insecure and located susceptible to a lot of severe KRACK attacks.
WPA3 depends on a safer handshaking, known as SAE (Simultaneous Authentication of Equals), that is additionally called skeeter hawk, that aims to safeguard WiFi networks against offline lexicon attacks.
However, in but a year, security researchers Mathy Vanhoef and Eyal Ronen found many weaknesses (Dragonblood) within the early implementation of WPA3, permitting Associate in Nursing assailant to recover WiFi passwords by abusing temporal arrangement or cache-based side-channel leaks.
Shortly then revealing, the WiFi Alliance, the non-profit organization that oversees the adoption of the WiFi customary, free patches to handle the problems and created security recommendations to mitigate the initial Dragonblood attacks.
But it seems that those security recommendations, that were created in private while not collaborating with the researchers, aren't enough to safeguard users against the Dragonblood attacks. Instead, it unveil 2 new side-channel attacks, that once more permits attackers to steal your WiFi parole although you're victimization the newest version of WiFi protocol.

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New Side-Channel Attack Against WPA3 once victimization Brainpool Curves

The first vulnerability, known as CVE-2019-13377, could be a timing-based side-channel attack against WPA3's skeeter hawk handshaking once victimization Brainpool curves, that the WiFi Alliance suggested vendors to use united of the protection recommendations to feature another layer of security.
"However, we tend to found that victimization Brainpool curves introduces the second category of side-channel leaks within the skeeter hawk handshaking of WPA3," the couple says in Associate in Nursing updated consultative. "In alternative words, although the recommendation of the WiFi Alliance is followed, implementations stay in danger of attacks."
"The new side-channel leak is found within the parole encryption algorithmic rule of skeeter hawk," the researchers aforementioned, "We confirmed the new Brainpool leak in observe against the lastest Hostapd version, and were ready to brute-force the parole victimization the leaked data."

Side-Channel Attack Against FreeRADIUS' EAP-PWD Implementation

The second vulnerability, known as CVE-2019-13456, is Associate in Nursing data leak bug that resides the implementation of EAP-pwd (Extensible Authentication Protocol-Password) in FreeRADIUS—one of the foremost wide used ASCII text file RADIUS server that firms utilizes as a central info to attest remote users.
Mathy Vanhoef, one in all the 2 researchers World Health Organization discovered the Dragonblood flaws, told The Hacker News that Associate in Nursing assailant might initiate many EAP-pwd handshakes to leak data, which may then be accustomed recover the user's WiFi parole by acting lexicon and brute-force attacks.
"The EAP-pwd protocol internally uses the skeeter hawk handshaking, and this protocol is employed in some enterprise networks wherever users attest employing a username and parole," Vanhoef told The Hacker News.
"More worrisome, we tend to found that the WiFi microcode of Cypress chips solely executes eight iterations at minimum to forestall side-channel leaks. though this makes attacks tougher, it doesn't forestall them." the couple aforementioned.
According to researchers, implementing skeeter hawk algorithmic rule and WPA3 while not side-channel leaks is amazingly arduous, and also the backward-compatible countermeasures against these attacks square measure too expensive for light-weight devices.
The researchers shared their new findings with the WiFi Alliance and tweeted that "WiFi customary is currently being updated with correct defenses, which could result in WPA three.1," however sadly, the new defenses would not be compatible with the initial version of WPA3.
Mathy Vanhoef conjointly told The Hacker News that it's unfortunate that WiFi Alliance created their security pointers privately. "If they might have done this in public, these new problems might are avoided. Even the initial WPA3 certification was partially created privately, that conjointly wasn't ideal."


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