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CVE-2020-26140

kernel: accepting plaintext data frames in protected networks

An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The WEP, WPA, WPA2, and WPA3 implementations accept plaintext frames in a protected Wi-Fi network. An adversary can abuse this to inject arbitrary data frames independent of the network configuration.

CVSS 3.1 · 6.5 Medium EPSS 2.9% KEV · Not listed
Vendors
Alfa Arista Cisco and 3 more
Products
Awus036h Awus036h Firmware C-100 and 386 more
CVE-2020-26139

kernel: Forwarding EAPOL from unauthenticated wifi client

An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.

CVSS 3.1 · 5.3 Medium EPSS 6.5% KEV · Not listed
Vendors
Arista Cisco Debian and 3 more
Products
C-100 C-100 Firmware C-110 and 328 more
CVE-2020-24588

kernel: wifi frame payload being parsed incorrectly as an L2 frame

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 802.11n), an adversary can abuse this to inject arbitrary network packets.

CVSS 3.1 · 3.5 Low EPSS 3.6% KEV · Not listed
Vendors
Arista Cisco Debian and 6 more
Products
C-100 C-100 Firmware C-110 and 348 more
CVE-2020-3261

Cisco Mobility Express Software Cross-Site Request Forgery Vulnerability

A vulnerability in the web-based management interface of Cisco Mobility Express Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. The vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected device. An attacker could exploit this vulnerability by persuading a user with an active session on an affected device to follow a malicious link. A successful exploit could allow the attacker to perform arbitrary actions, including modifying the configuration, with the privilege level of the user.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
6300 Series Access Points 6300 Series Access Points Firmware Aironet 1542d and 31 more
CVE-2020-3260

Cisco Aironet Series Access Points Client Packet Processing Denial of Service Vulnerability

A vulnerability in Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper processing of client packets that are sent to an affected access point (AP). An attacker could exploit this vulnerability by sending a large number of sustained client packets to the affected AP. A successful exploit could allow the attacker to cause the affected AP to crash, resulting in a DoS condition.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Aironet 1542d Aironet 1542d Firmware Aironet 1542i and 9 more
CVE-2020-24587

kernel: Reassembling fragments encrypted under different keys

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 the WEP, CCMP, or GCMP encryption key is periodically renewed.

CVSS 3.1 · 2.6 Low EPSS 2.6% KEV · Not listed
Vendors
Arista Cisco Debian and 4 more
Products
C-100 C-100 Firmware C-110 and 330 more