CVE-2021-41104

Published on: 09/28/2021 12:00:00 AM UTC

Last Modified on: 10/07/2021 02:13:00 PM UTC

CVE-2021-41104 - advisory for GHSA-48mj-p7x2-5jfm

Source: Mitre Source: Nist Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Certain versions of Esphome Firmware from Esphome contain the following vulnerability:

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`.

  • CVE-2021-41104 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo esphome - esphome version < 2021.9.2

CVSS3 Score: 7.5 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE HIGH NONE

CVSS2 Score: 4.3 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE PARTIAL NONE

CVE References

Description Tags Link
web_server allows OTA update without checking user defined basic auth username & password · Advisory · esphome/esphome · GitHub github.com
text/html
URL Logo CONFIRM github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm
Fix lint issues in web_server_base by jesserockz · Pull Request #2409 · esphome/esphome · GitHub github.com
text/html
URL Logo MISC github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e
Release 2021.9.2 · esphome/esphome · GitHub github.com
text/html
URL Logo MISC github.com/esphome/esphome/releases/tag/2021.9.2

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
EsphomeEsphome FirmwareAllAllAllAll
HardwareEspressifEsp32-AllAllAll
HardwareEspressifEsp8266-AllAllAll
  • cpe:2.3:o:esphome:esphome_firmware:*:*:*:*:*:*:*:*:
  • cpe:2.3:h:espressif:esp32:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:espressif:esp8266:-:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-41104 : ESPHome is a system to control the ESP8266/ESP32. Anyone with web_server enabled and HTTP basic au… twitter.com/i/web/status/1… 2021-09-28 15:19:52
© CVE.report 2021 Twitter Nitter Twitter Viewer |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report