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OpenAdvisories
High · 7.5 CVE-2021-41104 EUVD-2021-0071GHSA-48mj-p7x2-5jfmPYSEC-2021-351

web_server allows OTA update without checking user defined basic auth username & password

Published Sep 28, 2021 · Updated Aug 4, 2024 · Assigned by GitHub_M

Description

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`.

Affected products

VendorProductAffectedFixed
esphome esphome < 2021.9.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI esphome < 2021.9.2 2021.9.2 GHSA-48mj-p7x2-5jfm

References