CVE-2020-27301 — HIGH (8.0)

Vulnerability Description

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

CVSS Score

8.0

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Realtek	Rtl8710C Firmware	-
Realtek	Rtl8710C	-
Realtek	Rtl8195A Firmware	-
Realtek	Rtl8195A	-

Related Weaknesses (CWE)

CWE-787

References

https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-dayExploitThird Party Advisory
https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-dayExploitThird Party Advisory

FAQ

What is CVE-2020-27301?

CVE-2020-27301 is a vulnerability with a CVSS score of 8.0 (HIGH). A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the "AES_UnWRAP" function, when an attacker in Wi-Fi range sends a crafted "Encrypted G...

How severe is CVE-2020-27301?

CVE-2020-27301 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-27301?

Check the references section above for vendor advisories and patch information. Affected products include: Realtek Rtl8710C Firmware, Realtek Rtl8710C, Realtek Rtl8195A Firmware, Realtek Rtl8195A.