8.0
HIGH
CVE-2020-9395
Realtek RTL8195AM/RTL8711AM/RTL8711AF/RTL8710AF WPA2 Stack-Based Buffer Overflow
Description

An issue was discovered on Realtek RTL8195AM, RTL8711AM, RTL8711AF, and RTL8710AF devices before 2.0.6. A stack-based buffer overflow exists in the client code that takes care of WPA2's 4-way-handshake via a malformed EAPOL-Key packet with a long keydata buffer.

INFO

Published Date :

July 6, 2020, 10:15 p.m.

Last Modified :

July 21, 2021, 11:39 a.m.

Remotely Exploitable :

No

Impact Score :

6.0

Exploitability Score :

1.3
Affected Products

The following products are affected by CVE-2020-9395 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Realtek rtl8195am_firmware
2 Realtek rtl8711af_firmware
3 Realtek rtl8711am_firmware
4 Realtek rtl8710af_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-9395.

URL Resource
https://github.com/ambiot/amb1_arduino/commit/dcea55cf9775a0166805b3db845b237ecd5e74ea#diff-d06e7a87f34cc464a56799a419033014 Patch Third Party Advisory
https://github.com/ambiot/amb1_sdk/commit/bc5173d5d4faf6829074b0f1e1b242c12b7777a3#diff-700c216fb376666eaeda0c892e8bdc09 Patch Third Party Advisory
https://www.amebaiot.com/en/security_bulletin/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-9395 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-9395 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-120 CWE-787
  • Reanalysis by [email protected]

    Jul. 17, 2020

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:A/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:A/AC:M/Au:S/C:P/I:P/A:P)
    Removed CVSS V3.1 NIST AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • Initial Analysis by [email protected]

    Jul. 14, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    Changed Reference Type https://github.com/ambiot/amb1_arduino/commit/dcea55cf9775a0166805b3db845b237ecd5e74ea#diff-d06e7a87f34cc464a56799a419033014 No Types Assigned https://github.com/ambiot/amb1_arduino/commit/dcea55cf9775a0166805b3db845b237ecd5e74ea#diff-d06e7a87f34cc464a56799a419033014 Patch, Third Party Advisory
    Changed Reference Type https://github.com/ambiot/amb1_sdk/commit/bc5173d5d4faf6829074b0f1e1b242c12b7777a3#diff-700c216fb376666eaeda0c892e8bdc09 No Types Assigned https://github.com/ambiot/amb1_sdk/commit/bc5173d5d4faf6829074b0f1e1b242c12b7777a3#diff-700c216fb376666eaeda0c892e8bdc09 Patch, Third Party Advisory
    Changed Reference Type https://www.amebaiot.com/en/security_bulletin/ No Types Assigned https://www.amebaiot.com/en/security_bulletin/ Third Party Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration AND OR *cpe:2.3:o:realtek:rtl8711af_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.6 OR cpe:2.3:h:realtek:rtl8711af:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:realtek:rtl8711am_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.6 OR cpe:2.3:h:realtek:rtl8711am:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:realtek:rtl8195am_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.6 OR cpe:2.3:h:realtek:rtl8195am:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:realtek:rtl8710af_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.6 OR cpe:2.3:h:realtek:rtl8710af:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 07, 2020

    Action Type Old Value New Value
    Removed Reference https://www.amebaiot.com/en/arduino-faq/ [No Types Assigned]
    Added Reference https://www.amebaiot.com/en/security_bulletin/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-9395 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-9395 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.10264

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability