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'FragAttacks' Hype (With Logo) and Security Patches

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  • All WiFi devices are vulnerable to "frag attacks", here is how to protect yourself - Techzim

    A well known Belgium security researcher, Mathy Vanhoef, who specialises in WiFi security has discovered a series of flaws that affect all WiFi devices and in particular all WiFi routers out there. Due to the nature of these vulnerabilities, he has christened them frag attacks aka fragmentation and aggregation attacks.

  • FragAttacks: New Security Vulnerabilities Affecting WiFi Devices, 12 CVEs Issued - Phoronix

    FragAttacks was made public on Tuesday as a set of new security vulnerabilities affecting WiFi devices. These are just not some driver-level bugs but rather three of the vulnerabilities are attributed as design flaws in the WiFi standard itself and in turn most devices on the market.

    The FragAttacks researchers believe, "experiments indicate that every Wi-Fi product is affected by at least one vulnerability and that most products are affected by several vulnerabilities." WEP through WPA3 WiFi security is believed to be impacted but the researchers did also acknowledge "the design flaws are hard to abuse".

  • FragAttacks

    This website presents FragAttacks (fragmentation and aggregation attacks) which is a collection of new security vulnerabilities that affect Wi-Fi devices. An adversary that is within radio range of a victim can abuse these vulnerabilities to steal user information or attack devices. Three of the discovered vulnerabilities are design flaws in the Wi-Fi standard and therefore affect most devices. On top of this, several other vulnerabilities were discovered that are caused by widespread programming mistakes in Wi-Fi products. Experiments indicate that every Wi-Fi product is affected by at least one vulnerability and that most products are affected by several vulnerabilities.

  • Security updates for Wednesday

    Security updates have been issued by Debian (composer, hivex, lz4, and rails), Fedora (chromium, community-mysql, djvulibre, dom4j, firefox, php, php-phpmailer6, python-django, and redis), Mageia (mariadb, nagios, and pngcheck), openSUSE (opera, syncthing, and vlc), SUSE (kernel, openvpn, openvpn-openssl1, shim, and xen), and Ubuntu (flatpak, linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi, linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon, linux-oem-5.10, linux-oem-5.6, and mariadb-10.1, mariadb-10.3, mariadb-10.5).

How Safe is Your Router Anyhow?

  • How Safe is Your Router Anyhow?

    Mathy Vanhoef, a Belgian researcher discovered several vulnerabilities in the Wi-Fi standard. Some of these flaws date back to 1997 and affects Wireless Routers used in the last 24 years.

    Vanhoef is a computer security postdoctoral researcher at New York University Abu Dhabi, and he published on Tuesday a study named "Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation."

    Frag Attacks allow an attacker within a device's Wi-Fi radio range to collect information about the owner and run malicious code on the device. Bad actors can use a computer, smartphone, or any other device that is able to connect to a wireless network to hack the Wi-Fi.

Tom's Guide

  • Billions of devices vulnerable to Wi-Fi 'FragAttacks' — what to do | Tom's Guide

    Up to a dozen serious security flaws affect almost all Wi-Fi-enabled devices, including PCs, Mac, iPhones, Android phones, most routers and smart-home devices, says a Belgian security researcher. You'll want to update Windows straight away; most other devices will have to wait for patches.

    Mathy Vanhoef, who in 2017 co-discovered the widespread KRACK flaws in Wi-Fi, groups these 12 new flaws under the name "FragAttacks." He's put an impressive amount of documentation online to explain the flaws, including a dedicated FragAttacks website, an academic research paper, a presentation slideshow, two YouTube videos and a software tool to detect vulnerable devices.

A security researcher found Wi-Fi vulnerabilities...

  • A security researcher found Wi-Fi vulnerabilities that have existed since the beginning

    Vanhoef points out that some of the flaws can be exploited on networks using the WEP security protocol, indicating that they’ve been around since Wi-Fi was first implemented in 1997 (though if you’re still using WEP, these attacks should be the least of your concerns).

  • WiFi devices going back to 1997 vulnerable to new Frag Attacks

    A Belgian security researcher has discovered a series of vulnerabilities that impact the WiFi standard, with some bugs dating back as far back as 1997 and affecting devices sold for the past 24 years.

    The vulnerabilities, known as Frag Attacks, allow an attacker within a device’s WiFi radio range to gather information about the owner and run malicious code to compromise a device, may it be a computer, smartphone, or other smart device.

    Devices are also vulnerable even if the WiFi standard’s security protocols were activated, such as WEP and WPA.

  • Fragment and Forge: Breaking Wi-Fi ThroughFrame Aggregation and Fragmentation

    We discovered widespread design and implementation flaws related to frame aggregation and fragmentation. Interestingly, our aggregation attack could have been avoided if devices had implemented optional security improvements earlier. This highlights the importance of deploying security improvementsbefore practical attacks are known. The two fragmentation-based design flaws were, at a high level, caused by not adequately separating different security contexts. From this we learn that properly separating security contexts is an important principle to take into account when designing protocols.

    In practice, our implementation-specific vulnerabilities arethe most devastating. Several enable the trivial injection offrames, which we abused to trick a victim into using a malicious DNS server to then intercept most of the victim’s traffic.

Late coverage

  • FragAttacks Wi-Fi Security Vulnerabilities Affect Most Devices, the Wireless Standard and Security - CPO Magazine

    A Belgian security researcher discovered several Wi-Fi security vulnerabilities affecting the Wi-Fi standard itself and subsequently “affect most devices” in the market.

    Additionally, he discovered other related vulnerabilities originating from design flaws, such as “widespread programming mistakes.” The vulnerabilities dubbed “FragAttacks,” an acronym for “fragmentation and aggregation attacks,” affect devices released since 1997.

    When exploited, they could allow hackers to execute malicious code, intercept information, hijack the affected devices, or become launchpads for more sophisticated attacks.

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