Espressif ESP-IDF/ESP8266_RTOS_SDK/ESP8266_NONOS_SDK improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Espressif ESP-IDF, ESP8266_RTOS_SDK and ESP8266_NONOS_SDK. This affects an unknown part. This manipulation causes improper authentication. This vulnerability is handled as CVE-2020-12638. The attack can only be done within the local network. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Espressif ESP-IDF, ESP8266_RTOS_SDK and ESP8266_NONOS_SDK (version now known). Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released 07/23/2020. This vulnerability is known as CVE-2020-12638 since 05/04/2020. The exploitation appears to be difficult. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.0
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/04/2020 🔍
07/23/2020 +80 days 🔍
07/24/2020 +1 days 🔍
07/24/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-12638 (🔍)
GCVE (CVE): GCVE-0-2020-12638
GCVE (VulDB): GCVE-100-158941

Entryinfo

Created: 07/24/2020 09:17
Updated: 07/24/2020 09:22
Changes: 07/24/2020 09:17 (33), 07/24/2020 09:22 (17)
Complete: 🔍
Cache ID: 216::103

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