PT-2021-24206 · Home Assistant · Home Assistant Community Add-On: Ssh & Web Terminal

Eriner · Published 2021-12-16 · Updated 2024-08-04 · CVE-2021-45099

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Home Assistant Community Add-on: SSH & Web Terminal versions prior to 10.0.0

Description: The addon.stdin service has an attack surface that requires social engineering. Although the vendor does not agree that this is a vulnerability, addon.stdin was removed as a defense-in-depth measure against complex social engineering situations.

Recommendations: For versions prior to 10.0.0, consider removing or disabling the addon.stdin service as a defense-in-depth measure against complex social engineering situations.

Exploit

Fix

Related Identifiers

CVE-2021-45099

Affected Products

Home Assistant Community Add-On: Ssh & Web Terminal

References · 7

• 🔥 https://gist.github.com/Eriner/0872628519f70556d2c26c83439a9f67 · Exploit
• https://osv.dev/vulnerability/CVE-2021-45099 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45099 · Security Note
• https://github.com/hassio-addons/addon-ssh/releases/tag/v10.0.0 · Note
• https://t.me/cvenotify/25068 · Telegram Post
• https://t.me/cibsecurity/34126 · Telegram Post
• https://t.me/cvenotify/88921 · Telegram Post