CVE-2019-18990

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.

CVSS v3.0 5.4 MEDIUM
CVSS v2.0 4.8 MEDIUM

5.4^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

4.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:N/C:P/I:P/A:N

Exploitability : 6.5 / Impact : 4.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://www.synopsys.com/blogs/software-security/cyrc-advisory-sept2020/	Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:realtek:rtl8812ar_firmware:1.21ww:*:*:*:*:*:*:*

cpe:2.3:h:realtek:rtl8812ar:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:realtek:rtl8196d_firmware:1.0.0:*:*:*:*:*:*:*

cpe:2.3:h:realtek:rtl8196d:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:realtek:rtl8192er_firmware:2.10:*:*:*:*:*:*:*

cpe:2.3:h:realtek:rtl8192er:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:realtek:rtl8881an_firmware:1.09:*:*:*:*:*:*:*

cpe:2.3:h:realtek:rtl8881an:-:*:*:*:*:*:*:*

Information

Published : 2020-09-30 11:15

Updated : 2021-07-21 04:39

NVD link : CVE-2019-18990

Mitre link : CVE-2019-18990

JSON object : View

CWE

CWE-290

Authentication Bypass by Spoofing

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Products Affected

realtek

rtl8196d_firmware
rtl8192er
rtl8196d
rtl8881an
rtl8192er_firmware
rtl8812ar
rtl8812ar_firmware
rtl8881an_firmware

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