Protect

On May 11th, 2021, Mathy Vanhoef New York University Abu Dhabi published a new paper, Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation, on a number of vulnerabilities in the base 802.11 protocol 802.11 is the standard that Wi-Fi is built on. The paper discloses three...

SonicWall 802.11 Frame Aggregation and Fragmentation Vulnerabilities (FragAttacks)

Vulnerabilities in IEEE 802.11 implementation were found. These vulnerabilities could allow an attacker to inject malicious frames into legitimate WiFi traffic. The discovered vulnerabilities affect all modern security protocols of WiFi, including the latest WPA3. Successful exploitation of these...

Moderate: wpa_supplicant security, bug fix, and enhancement update

The wpasupplicant packages contain an 802.1X Supplicant with support for WEP, WPA, WPA2 IEEE 802.11i / RSN, and various EAP authentication methods. They implement key negotiation with a WPA Authenticator for client stations and controls the roaming and IEEE 802.11 authentication and association o...

Nearly All Wi-Fi Devices Are Vulnerable to New FragAttacks

Three design and multiple implementation flaws have been disclosed in IEEE 802.11 technical standard that undergirds Wi-Fi, potentially enabling an adversary to take control over a system and plunder confidential data. Called FragAttacks short for FRgmentation and AGgregation Attacks, the...

CVE-2020-24587

The 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and...

CVE-2020-24588

The 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames which is mandatory as part of 802.11...

CVE-2020-24588

The 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames which is mandatory as part of 802.11...

Design/Logic Flaw

The 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP doesn't require that received fragments be cleared from memory after reconnecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using...

CVE-2020-24586

The 802.11 standard that underpins Wi-Fi Protected Access WPA, WPA2, and WPA3 and Wired Equivalent Privacy WEP doesn't require that received fragments be cleared from memory after reconnecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using...

Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021

On May 11, 2021, the research paper Fragment and Forge: Breaking Wi-Fi Through Frame Aggregation and Fragmentation was made public. This paper discusses 12 vulnerabilities in the 802.11 standard. One vulnerability is in the frame aggregation functionality, two vulnerabilities are in the frame...

CVE-2020-24586

CVE-2020-24586 describes a fragmentation cache issue in the Linux kernel Wi‑Fi stack: received fragments are not cleared from memory on reconnect, enabling an attacker within Wi‑Fi range to inject arbitrary packets or exfiltrate data when fragments encrypted with WEP/CCMP/GCMP are involved. Conne...

CVE-2020-24587

CVE-2020-24587 is referenced in the Amazon Linux 2 kernel advisory for Kernel-5.10-2022-002. The connected document confirms a flaw in the Linux kernel 802.11 wifi fragmentation handling where fragments encrypted under different keys can be reassembled and decrypted, enabling an attacker within w...

CVE-2020-24588

The CVE-2020-24588 entry relates to the 802.11 Wi‑Fi fragmentation/ A‑MSDU handling issue where the plaintext QoS header flag isn’t authenticated, enabling an attacker to inject packets by sending non‑SSP A‑MSDU frames (FragAttacks). Connected Astra Linux advisories describe this as a variant of ...

[SECURITY] Fedora 34 Update: wpa_supplicant-2.9-12.fc34

wpasupplicant is a WPA Supplicant for Linux, BSD and Windows with support for WPA and WPA2 IEEE 802.11i / RSN. Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator and it controls the roaming and IEEE 802.11...

[SECURITY] Fedora 34 Update: wpa_supplicant-2.9-11.fc34

wpasupplicant is a WPA Supplicant for Linux, BSD and Windows with support for WPA and WPA2 IEEE 802.11i / RSN. Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator and it controls the roaming and IEEE 802.11...

NewStart CGSL MAIN 6.02 : tcpdump Multiple Vulnerabilities (NS-SA-2021-0082)

The remote NewStart CGSL host, running version MAIN 6.02, has tcpdump packages installed that are affected by multiple vulnerabilities: - The ICMP parser in tcpdump before 4.9.3 has a buffer over-read in print-icmp.c:icmpprint. CVE-2018-14462 - The ICMPv6 parser in tcpdump before 4.9.3 has a buff...

Code injection

In the 3.1.3.64296 and lower version of 360F5, the third party can trigger the device to send a deauth frame by constructing and sending a specific illegal 802.11 Null Data Frame, which will cause other wireless terminals connected to disconnect from the wireless, so as to attack the router...

CVE-2019-3405

The CVE-2019-3405 issue affects 360F5 firmware 3.1.3.64296 and lower. A third party can craft and send a specific illegal 802.11 Null Data Frame to cause the AP to transmit a deauthentication frame, disconnecting wireless clients and enabling a DoS against the router’s wireless. The available sou...

(0Day) Realtek RTL8811AU Wi-Fi Driver rtwlane Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of the Realtek RTL8811AU Wi-Fi driver. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of 802.11 frames. The issue results from the...

(0Day) Realtek rtl81xx SDK Wi-Fi Driver rtwlanu Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Realtek rtl81xx SDK Wi-Fi driver. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of 802.11 frames. The issue results from the...