CVE-2018-0163

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"cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the 802.1x multiple-authentication (multi-auth) feature of Cisco IOS Software could allow an unauthenticated, adjacent attacker to bypass the authentication phase on an 802.1x multi-auth port. The vulnerability is due to a logic change error introduced into the code. An attacker could exploit this vulnerability by trying to access an 802.1x multi-auth port after a successful supplicant has authenticated. An exploit could allow the attacker to bypass the 802.1x access controls and obtain access to the network. Cisco Bug IDs: CSCvg69701."}, {"lang": "es", "value": "Una vulnerabilidad en e la caracter\u00edstica multiple-authentication (multi-auth) 802.1x de Cisco IOS Software podr\u00eda permitir que un atacante adyacente sin autenticar omita la fase de autenticaci\u00f3n en un puerto multi-auth 802.1x. Esta vulnerabilidad se debe a un error de cambio de l\u00f3gica introducido en el c\u00f3digo. Un atacante podr\u00eda explotar esta vulnerabilidad intentando acceder a un puerto multi-auth 802.1x despu\u00e9s de que un solicitante se haya autenticado con \u00e9xito. Un exploit podr\u00eda permitir que el atacante omita los controles de acceso 802.1x y obtenga acceso a la red. Cisco Bug IDs: CSCvg69701."}], "id": "CVE-2018-0163", "lastModified": "2026-06-17T01:29:58.710", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 3.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:A/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2018-0163", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-12-02T18:54:20.403835Z", "version": "2.0.3"}}]}, "published": "2018-03-28T22:29:00.750", "references": [{"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103571"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dot1x"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103571"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dot1x"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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