CVE-2021-38598

OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when the linuxbridge driver with ebtables-nft is used on a Netfilter-based platform. By sending carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the hardware addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations.

CVSS v3 9.1 CRITICAL
CVSS v2.0 5.8 MEDIUM

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://launchpad.net/bugs/1938670	Exploit Issue Tracking Third Party Advisory
https://launchpad.net/bugs/1938670	Exploit Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openstack:neutron::::::::
	cpe:2.3:a:openstack:neutron::::::::
	cpe:2.3:a:openstack:neutron:18.0.0:::::::*

History

21 Nov 2024, 06:17

Type	Values Removed	Values Added
References	~~() https://launchpad.net/bugs/1938670 - Exploit, Issue Tracking, Third Party Advisory~~	() https://launchpad.net/bugs/1938670 - Exploit, Issue Tracking, Third Party Advisory

08 Aug 2023, 14:22

Type	Values Removed	Values Added
CWE	~~CWE-863~~	CWE-290

Information

Published : 2021-08-23 05:15

Updated : 2024-11-21 06:17

NVD link : CVE-2021-38598

Mitre link : CVE-2021-38598

CVE.ORG link : CVE-2021-38598

JSON object : View

Products Affected

openstack

neutron

CWE

CWE-290

Authentication Bypass by Spoofing

{"id": "CVE-2021-38598", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2021-08-23T05:15:08.193", "references": [{"url": "https://launchpad.net/bugs/1938670", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://launchpad.net/bugs/1938670", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-290"}]}], "descriptions": [{"lang": "en", "value": "OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when the linuxbridge driver with ebtables-nft is used on a Netfilter-based platform. By sending carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the hardware addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations."}, {"lang": "es", "value": "OpenStack Neutron versiones anteriores a 16.4.1, 17.x versiones anteriores a 17.1.3 y 18.0.0, permite una suplantaci\u00f3n de direcciones de hardware cuando es usado el controlador linuxbridge con ebtables-nft en una plataforma basada en Netfilter. Mediante el env\u00edo de paquetes cuidadosamente dise\u00f1ados, cualquier persona que controle una instancia de servidor conectada al conmutador virtual puede suplantar las direcciones de hardware de otros sistemas en la red, resultando en una denegaci\u00f3n de servicio o, en algunos casos, a una posible interceptaci\u00f3n del tr\u00e1fico previsto para otros destinos."}], "lastModified": "2024-11-21T06:17:37.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "19960486-0F45-4640-AC10-CC48A25F8309", "versionEndExcluding": "16.4.1"}, {"criteria": "cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1AB8E7F9-5593-4EC1-BCD4-B5A7061274DD", "versionEndExcluding": "17.1.3", "versionStartIncluding": "17.0.0"}, {"criteria": "cpe:2.3:a:openstack:neutron:18.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F0D3CE94-058D-41F4-B7F9-463375904E1D"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}