CVE-2020-12638
Espressif ESP-IDF and ESP8266 Encryption Bypass Vulnerability
Description
An encryption-bypass issue was discovered on Espressif ESP-IDF devices through 4.2, ESP8266_NONOS_SDK devices through 3.0.3, and ESP8266_RTOS_SDK devices through 3.3. Broadcasting forged beacon frames forces a device to change its authentication mode to OPEN, effectively disabling its 802.11 encryption.
INFO
Published Date :
July 23, 2020, 4:15 p.m.
Last Modified :
Nov. 21, 2024, 4:59 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.6
Affected Products
The following products are affected by CVE-2020-12638
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.
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-2020-12638.
| URL | Resource |
|---|---|
| https://github.com/espressif/ESP8266_NONOS_SDK | Third Party Advisory |
| https://github.com/espressif/ESP8266_RTOS_SDK | Third Party Advisory |
| https://github.com/espressif/esp-idf | Third Party Advisory |
| https://lbsfilm.at/blog/wpa2-authenticationmode-downgrade-in-espressif-microprocessors | Exploit Patch Third Party Advisory |
| https://github.com/espressif/ESP8266_NONOS_SDK | Third Party Advisory |
| https://github.com/espressif/ESP8266_RTOS_SDK | Third Party Advisory |
| https://github.com/espressif/esp-idf | Third Party Advisory |
| https://lbsfilm.at/blog/wpa2-authenticationmode-downgrade-in-espressif-microprocessors | Exploit Patch 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-2020-12638 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-12638 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/espressif/ESP8266_NONOS_SDK Added Reference https://github.com/espressif/ESP8266_RTOS_SDK Added Reference https://github.com/espressif/esp-idf Added Reference https://lbsfilm.at/blog/wpa2-authenticationmode-downgrade-in-espressif-microprocessors -
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-287 CWE-287 CWE-319 -
Initial Analysis by [email protected]
Jul. 28, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:M/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/espressif/ESP8266_NONOS_SDK No Types Assigned https://github.com/espressif/ESP8266_NONOS_SDK Third Party Advisory Changed Reference Type https://github.com/espressif/ESP8266_RTOS_SDK No Types Assigned https://github.com/espressif/ESP8266_RTOS_SDK Third Party Advisory Changed Reference Type https://github.com/espressif/esp-idf No Types Assigned https://github.com/espressif/esp-idf Third Party Advisory Changed Reference Type https://lbsfilm.at/blog/wpa2-authenticationmode-downgrade-in-espressif-microprocessors No Types Assigned https://lbsfilm.at/blog/wpa2-authenticationmode-downgrade-in-espressif-microprocessors Exploit, Patch, Third Party Advisory Added CWE NIST CWE-287 Added CPE Configuration OR *cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:* versions up to (including) 4.2 *cpe:2.3:a:espressif:esp8266_nonos_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.0.3 *cpe:2.3:a:espressif:esp8266_rtos_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-12638 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-2020-12638
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.01%
score
0.33752
percentile