Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2020-26139

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
11/05/2021
Last modified:
30/09/2022

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:M/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 2.90 LOW
Vector: AV:A/AC:M/Au:N/C:N/I:N/A:P

Attack Vector (AV): Adjacent
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
2.90
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:netbsd:netbsd:7.1:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:c-100:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-110_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:c-110:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-120_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:c-120:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-130_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:c-130:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:c-200:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-230_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:c-230:-:*:*:*:*:*:*:*
cpe:2.3:o:arista:c-235_firmware:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools