CVE Vulnerabilities

CVE-2019-18990

Improper Authentication

Published: Sep 30, 2020 | Modified: Jul 21, 2021
CVSS 3.x
5.4
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.x
4.8 MEDIUM
AV:A/AC:L/Au:N/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

A partial authentication bypass vulnerability exists on Realtek RTL8812AR 1.21WW, RTL8196D 1.0.0, RTL8192ER 2.10, and RTL8881AN 1.09 devices. The vulnerability allows sending an unencrypted data frame to a WPA2-protected WLAN router where the packet is routed through the network. If successful, a response is sent back as an encrypted frame, which would allow an attacker to discern information or potentially modify data.

Weakness

When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

Potential Mitigations

References