CVE-2020-27302

A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the "memcpy" function, when an attacker in Wi-Fi range sends a crafted "Encrypted GTK" value as part of the WPA2 4-way-handshake.

CVSS v3 8.0 HIGH
CVSS v2.0 7.7 HIGH

8.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.7^/10

CVSS v2.0 : HIGH

Vector : AV:A/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 5.1 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-day	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:realtek:rtl8710c_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:realtek:rtl8710c:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:realtek:rtl8195a_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:realtek:rtl8195a:-:*:*:*:*:*:*:*

History

14 Jun 2021, 18:06

Type	Values Removed	Values Added
CWE		CWE-787
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.7 v3 : 8.0
CPE		cpe:2.3:h:realtek:rtl8710c:-:::::::* cpe:2.3:o:realtek:rtl8195a_firmware:-:::::::* cpe:2.3:o:realtek:rtl8710c_firmware:-:::::::* cpe:2.3:h:realtek:rtl8195a:-:::::::*
References	~~(MISC) https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-day -~~	(MISC) https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-day - Exploit, Third Party Advisory

04 Jun 2021, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-06-04 13:15

Updated : 2023-12-10 13:55

NVD link : CVE-2020-27302

Mitre link : CVE-2020-27302

CVE.ORG link : CVE-2020-27302

JSON object : View

Products Affected

realtek

rtl8710c_firmware
rtl8710c
rtl8195a_firmware
rtl8195a

CWE

CWE-787

Out-of-bounds Write

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