CVE-2019-18939

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : 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-2019-18939/	Exploit Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

Configuration 2 (hide)

Configuration 3 (hide)

Configuration 4 (hide)

Information

Published : 2019-11-14 11:15

Updated : 2021-07-21 04:39

NVD link : CVE-2019-18939

Mitre link : CVE-2019-18939

JSON object : View

CWE

CWE-306

Missing Authentication for Critical Function

Advertisement

Products Affected

eq-3

homematic_ccu2_firmware
homematic_ccu3
homematic_ccu2
homematic_ccu3_firmware

hm-print_project

hm-print

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://psytester.github.io/CVE-2019-18939/", "name": "https://psytester.github.io/CVE-2019-18939/", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-306"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-18939", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2019-11-14T19:15Z", "configurations": {"nodes": [{"children": [], "operator": "AND", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:hm-print_project:hm-print:1.2a:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:eq-3:homematic_ccu2_firmware:2.47.20:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "AND", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:hm-print_project:hm-print:1.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:eq-3:homematic_ccu3_firmware:3.47.18:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "AND", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:hm-print_project:hm-print:1.2a:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:eq-3:homematic_ccu3_firmware:3.47.18:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "AND", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:hm-print_project:hm-print:1.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:eq-3:homematic_ccu2_firmware:2.47.20:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-07-21T11:39Z"}