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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-2021-1419

Cisco Access Points SSH Management Privilege Escalation Vulnerability

A vulnerability in the SSH management feature of multiple Cisco Access Points (APs) platforms could allow a local, authenticated user to modify files on the affected device and possibly gain escalated privileges. The vulnerability is due to improper checking on file operations within the SSH management interface. A network administrator user could exploit this vulnerability by accessing an affected device through SSH management to make a configuration change. A successful exploit could allow the attacker to gain privileges equivalent to the root user.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
1100-8p 1100-8p Firmware 1120 and 81 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