High severityNVD Advisory· Published Sep 28, 2021· Updated Aug 4, 2024
web_server allows OTA update without checking user defined basic auth username & password
CVE-2021-41104
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
esphomePyPI | < 2021.9.2 | 2021.9.2 |
Affected products
2Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-48mj-p7x2-5jfmghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-41104ghsaADVISORY
- github.com/esphome/esphome/commit/2234f6aacf8cc653307fed80f3750317a82c4f83ghsaWEB
- github.com/esphome/esphome/commit/be965a60eba6bb769e2a5afdbc8eed132f077a59ghsaWEB
- github.com/esphome/esphome/pull/2409ghsaWEB
- github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1emitrex_refsource_MISC
- github.com/esphome/esphome/releases/tag/2021.9.2ghsax_refsource_MISCWEB
- github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfmghsax_refsource_CONFIRMWEB
- github.com/pypa/advisory-database/tree/main/vulns/esphome/PYSEC-2021-351.yamlghsaWEB
News mentions
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