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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-2023-20097

Cisco Access Point Software Command Injection Vulnerability

A vulnerability in Cisco access points (AP) software could allow an authenticated, local attacker to inject arbitrary commands and execute them with root privileges. This vulnerability is due to improper input validation of commands that are issued from a wireless controller to an AP. An attacker with Administrator access to the CLI of the controller could exploit this vulnerability by issuing a command with crafted arguments. A successful exploit could allow the attacker to gain full root access on the AP.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Aironet 1540 Aironet 1542d Aironet 1542i and 58 more
CVE-2023-20056

Cisco Access Point Software Denial of Service Vulnerability

A vulnerability in the management CLI of Cisco access point (AP) software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of commands supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to cause an affected device to reload spontaneously, resulting in a DoS condition.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Aironet 1540 Aironet 1542d Aironet 1542i and 58 more
CVE-2021-34740

Cisco Aironet Access Points WLAN Control Protocol Packet Buffer Leak Denial of Service Vulnerability

A vulnerability in the WLAN Control Protocol (WCP) implementation for Cisco Aironet Access Point (AP) software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect error handling when an affected device receives an unexpected 802.11 frame. An attacker could exploit this vulnerability by sending certain 802.11 frames over the wireless network to an interface on an affected AP. A successful exploit could allow the attacker to cause a packet buffer leak. This could eventually result in buffer allocation failures, which would trigger a reload of the affected device.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
1100-4g\/6g Integrated Services Router 1100-4p Integrated Services Router 1100-8p Integrated Services Router and 68 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