{
    "CVE_data_meta": {
        "ASSIGNER": "psirt@cisco.com",
        "DATE_PUBLIC": "2018-09-26T16:00:00-0500",
        "ID": "CVE-2018-15372",
        "STATE": "PUBLIC",
        "TITLE": "Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Cisco IOS XE Software",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Cisco"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A vulnerability in the MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) functionality of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to bypass authentication and pass traffic through a Layer 3 interface of an affected device. The vulnerability is due to a logic error in the affected software. An attacker could exploit this vulnerability by connecting to and passing traffic through a Layer 3 interface of an affected device, if the interface is configured for MACsec MKA using EAP-TLS and is running in access-session closed mode. A successful exploit could allow the attacker to bypass 802.1x network access controls and gain access to the network."
            }
        ]
    },
    "impact": {
        "cvss": {
            "baseScore": "6.5",
            "version": "3.0"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-284"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "20180926 Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability",
                "refsource": "CISCO",
                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec"
            },
            {
                "name": "105416",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/105416"
            }
        ]
    },
    "source": {
        "advisory": "cisco-sa-20180926-macsec",
        "defect": [
            [
                "CSCvh09411"
            ]
        ],
        "discovery": "UNKNOWN"
    }
}