PT-2019-11582 · Eq 3 · Eq-3 Homematic Ccu3+1

Published 2019-07-10 · Updated 2020-08-24 · CVE-2019-10119

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: eQ-3 HomeMatic CCU2 versions prior to 2.41.8 eQ-3 HomeMatic CCU3 versions prior to 3.43.16

Description: The issue allows an attacker to bypass authentication due to the lack of authorization checks when using session IDs for authentication. An attacker can obtain a session ID through an invalid login attempt to the RemoteApi account, which leads to automatic login as an admin.

Recommendations: For eQ-3 HomeMatic CCU2 versions prior to 2.41.8, update to version 2.41.8 or later. For eQ-3 HomeMatic CCU3 versions prior to 3.43.16, update to version 3.43.16 or later.

Fix

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2019-10119

Affected Products

Eq-3 Homematic Ccu2

Eq-3 Homematic Ccu3

References · 4

• https://eq-3.de/Downloads/Software/HM-CCU2-Firmware_Updates/HM-CCU-2.41.9/HM-CCU2-Changelog.2.41.9.pdf · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-10119 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-10119 · Security Note
• https://eq-3.de/Downloads/Software/CCU3-Firmware/CCU3-3.43.16/CCU3-Changelog.3.43.16.pdf · Vendor Advisory