CVE-2019-18990

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se presenta una vulnerabilidad de omisión de autenticación parcial en los dispositivos Realtek RTL8812AR versión 1.21WW, RTL8196D versión 1.0.0, RTL8192ER versión 2.10 y RTL8881AN versión 1.09. La vulnerabilidad permite enviar una trama de datos no cifrada hacia un enrutador WLAN protegido por WPA2 donde el paquete se enruta por medio de la red. Si tiene éxito, es enviada una respuesta como una trama cifrada, lo que permitiría a un atacante discernir información o potencialmente modificar datos

*Credits: N/A

CVSS Scores

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-11-15 CVE Reserved
2020-09-30 CVE Published
2023-06-16 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-290: Authentication Bypass by Spoofing

CAPEC

References (1)

URL	Tag	Source
https://www.synopsys.com/blogs/software-security/cyrc-advisory-sept2020	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Realtek Search vendor "Realtek"	Rtl8812ar Firmware Search vendor "Realtek" for product "Rtl8812ar Firmware"	1.21ww Search vendor "Realtek" for product "Rtl8812ar Firmware" and version "1.21ww"	-	Affected	in	Realtek Search vendor "Realtek"	Rtl8812ar Search vendor "Realtek" for product "Rtl8812ar"	-	-	Safe
Realtek Search vendor "Realtek"	Rtl8196d Firmware Search vendor "Realtek" for product "Rtl8196d Firmware"	1.0.0 Search vendor "Realtek" for product "Rtl8196d Firmware" and version "1.0.0"	-	Affected	in	Realtek Search vendor "Realtek"	Rtl8196d Search vendor "Realtek" for product "Rtl8196d"	-	-	Safe
Realtek Search vendor "Realtek"	Rtl8192er Firmware Search vendor "Realtek" for product "Rtl8192er Firmware"	2.10 Search vendor "Realtek" for product "Rtl8192er Firmware" and version "2.10"	-	Affected	in	Realtek Search vendor "Realtek"	Rtl8192er Search vendor "Realtek" for product "Rtl8192er"	-	-	Safe
Realtek Search vendor "Realtek"	Rtl8881an Firmware Search vendor "Realtek" for product "Rtl8881an Firmware"	1.09 Search vendor "Realtek" for product "Rtl8881an Firmware" and version "1.09"	-	Affected	in	Realtek Search vendor "Realtek"	Rtl8881an Search vendor "Realtek" for product "Rtl8881an"	-	-	Safe