CVE Vulnerability

CVE-2021-41104

ESPHome is a system to control the ESP8266/ESP32. Anyone with web_server enabled and HTTP basic auth configured on version 2021.9.1 or older is vulnerable to an issue in which `web_server` allows over-the-air (OTA) updates without checking user defined basic auth username & password. This issue is patched in version 2021.9.2. As a workaround, one may disable or remove `web_server`.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e Patch Third Party Advisory
https://github.com/esphome/esphome/releases/tag/2021.9.2 Release Notes Third Party Advisory
https://github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm Patch Third Party Advisory
Configurations

Configuration 1
Information

Published : 2021-09-28 04:15

Updated : 2021-10-07 02:13

NVD link : CVE-2021-41104

Mitre link : CVE-2021-41104

Products Affected
No products.
CWE
CWE-306