CVE-2020-12834

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).

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://psytester.github.io/CVE-2020-12834/	Exploit Third Party Advisory
https://psytester.github.io/CVE-2020-12834/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:eq-3:homematic_ccu2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:eq-3:ccu3_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:00

Type	Values Removed	Values Added
References	~~() https://psytester.github.io/CVE-2020-12834/ - Exploit, Third Party Advisory~~	() https://psytester.github.io/CVE-2020-12834/ - Exploit, Third Party Advisory

Information

Published : 2020-05-15 17:15

Updated : 2024-11-21 05:00

NVD link : CVE-2020-12834

Mitre link : CVE-2020-12834

CVE.ORG link : CVE-2020-12834

JSON object : View

Products Affected

eq-3

homematic_ccu2
homematic_ccu3
ccu3_firmware
homematic_ccu2_firmware

CWE

CWE-276

Incorrect Default Permissions

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