Vulnerabilities

A Remote Code Execution (RCE) vulnerability in the WebUI component of the eQ-3 HomeMatic CCU2 firmware up to and including version 2.57.5 and CCU3 firmware up to and including version 3.57.5 allows remote unauthenticated attackers to execute system commands as root via a simple HTTP request.

eQ-3 Homematic Central Control Unit (CCU)2 through 2.51.6 and CCU3 through 3.51.6 allow Remote Code Execution in the JSON API Method ReGa.runScript, by unauthenticated attackers with access to the web interface, due to the default auto-login feature being enabled during first-time setup (or factory reset).

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the HM-Print AddOn through 1.2a installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the exec.cgi and exec1.cgi scripts, which execute TCL script content from an HTTP POST request.

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the E-Mail AddOn through 1.6.8.c installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the save.cgi script for payload upload and the testtcl.cgi script for its execution.

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the Script Parser AddOn through 1.8 installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the exec.cgi script, which executes TCL script content from an HTTP POST request.

eQ-3 HomeMatic CCU3 firmware version 3.41.11 allows Remote Code Execution in the ReGa.runScript method. An authenticated attacker can easily execute code and compromise the system.

A Remote Code Execution (RCE) issue in the addon CUx-Daemon 1.11a of the eQ-3 Homematic CCU-Firmware 2.35.16 until 2.45.6 allows remote authenticated attackers to execute system commands as root remotely via a simple HTTP request.

eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.

eQ-3 Homematic CCU2 prior to 2.47.10 and CCU3 prior to 3.47.10 JSON API has Improper Access Control for Interface.***Metadata related operations, resulting in the ability to read, set and deletion of Metadata.

eQ-3 Homematic CCU2 and CCU3 obtain session IDs without login. This allows a Denial of Service and is a starting point for other attacks. Affected versions for CCU2: 2.35.16, 2.41.5, 2.41.8, 2.41.9, 2.45.6, 2.45.7, 2.47.10, 2.47.12, 2.47.15. Affected versions for CCU3: 3.41.11, 3.43.16, 3.45.5, 3.45.7, 3.47.10, 3.47.15.

eQ-3 Homematic CCU2 and CCU3 with the CUxD AddOn installed allow Remote Code Execution by unauthenticated attackers with access to the web interface, because this interface can access the CMD_EXEC virtual device type 28.

eQ-3 Homematic CCU3 3.47.15 and prior has Improper Input Validation in function 'Call()' of ReGa core logic process, resulting in the ability to start a Denial of Service. Due to Improper Authorization an attacker can obtain a session ID from CVE-2019-9583 or a valid guest/user/admin account can start this attack too.

eQ-3 Homematic CCU2 and CCU3 use session IDs for authentication but lack authorization checks. Consequently, a valid guest level or user level account can create a new admin level account, read the service messages, clear the system protocol or modify/delete internal programs, etc. pp.

eQ-3 Homematic CCU2 2.47.15 and prior and CCU3 3.47.15 and prior use session IDs for authentication but lack authorization checks. An attacker can obtain a session ID from CVE-2019-9583, resulting in the ability to read the service messages, clear the system protocol, create a new user in the system, or modify/delete internal programs.

eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.15 use session IDs for authentication but lack authorization checks. An attacker can obtain a session ID via the user authentication dialogue, aka HMCCU-153. This leads to automatic login as admin.

Directory Traversal / Arbitrary File Read in eQ-3 AG Homematic CCU3 3.43.15 and earlier allows remote attackers to read arbitrary files of the device's filesystem. This vulnerability can be exploited by unauthenticated attackers with access to the web interface.

Remote Code Execution in the TCL script interpreter in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to obtain read/write access and execute system commands on the device. This vulnerability can be exploited by unauthenticated attackers with access to the web interface.

Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to write arbitrary files to the device's filesystem. This vulnerability can be exploited by unauthenticated attackers with access to the web interface.