CVE-2021-27657

Successful exploitation of this vulnerability could give an authenticated Metasys user an unintended level of access to the server file system, allowing them to access or modify system files by sending specifically crafted web messages to the Metasys system. This issue affects: Johnson Controls Metasys version 11.0 and prior versions.

CVSS v3 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-01	Third Party Advisory US Government Resource
https://us-cert.gov/ics/advisories	Third Party Advisory US Government Resource
https://www.johnsoncontrols.com/cyber-solutions/security-advisories	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:johnsoncontrols:metasys:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-06-04 15:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-27657

Mitre link : CVE-2021-27657

CVE.ORG link : CVE-2021-27657

JSON object : View

Products Affected

johnsoncontrols

metasys

CWE

CWE-269

Improper Privilege Management

{"id": "CVE-2021-27657", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "productsecurity@jci.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2021-06-04T15:15:07.517", "references": [{"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-01", "tags": ["Third Party Advisory", "US Government Resource"], "source": "productsecurity@jci.com"}, {"url": "https://us-cert.gov/ics/advisories", "tags": ["Third Party Advisory", "US Government Resource"], "source": "productsecurity@jci.com"}, {"url": "https://www.johnsoncontrols.com/cyber-solutions/security-advisories", "tags": ["Vendor Advisory"], "source": "productsecurity@jci.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-269"}]}, {"type": "Secondary", "source": "productsecurity@jci.com", "description": [{"lang": "en", "value": "CWE-269"}]}], "descriptions": [{"lang": "en", "value": "Successful exploitation of this vulnerability could give an authenticated Metasys user an unintended level of access to the server file system, allowing them to access or modify system files by sending specifically crafted web messages to the Metasys system. This issue affects: Johnson Controls Metasys version 11.0 and prior versions."}, {"lang": "es", "value": "Una explotaci\u00f3n con \u00e9xito de esta vulnerabilidad podr\u00eda otorgar a un usuario autenticado de Metasys un nivel de acceso no intencionado al sistema de archivos del servidor, permiti\u00e9ndole acceder o modificar los archivos del sistema mediante el env\u00edo de mensajes web espec\u00edficamente dise\u00f1ados para el sistema Metasys. Este problema afecta: Johnson Controls Metasys versiones 11.0 y versiones anteriores"}], "lastModified": "2021-12-02T13:55:35.607", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:johnsoncontrols:metasys:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D5F7AFA8-0BE3-4B4E-BECA-7A51700003CD", "versionEndIncluding": "11.0"}], "operator": "OR"}]}], "sourceIdentifier": "productsecurity@jci.com"}