cvelist/2021/28xxx/CVE-2021-28495.json

{
    "impact": {
        "cvss": {
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L",
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "privilegesRequired": "NONE",
            "baseSeverity": "HIGH",
            "userInteraction": "NONE",
            "baseScore": 7.2,
            "availabilityImpact": "LOW",
            "version": "3.1",
            "scope": "CHANGED",
            "integrityImpact": "LOW",
            "confidentialityImpact": "NONE"
        }
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train"
            }
        ]
    },
    "data_type": "CVE",
    "source": {
        "discovery": "INTERNAL"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Metamako Operating System",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "Arista 7130 Systems running MOS",
                                            "version_name": "MOS-0.13",
                                            "version_affected": ">=",
                                            "version_value": "MOS-0.13"
                                        },
                                        {
                                            "platform": "Arista 7130 Systems running MOS",
                                            "version_name": "MOS-0.26.7",
                                            "version_affected": "<",
                                            "version_value": "MOS-0.26.7"
                                        },
                                        {
                                            "platform": "Arista 7130 Systems running MOS",
                                            "version_name": "MOS-0.32.0",
                                            "version_affected": "<",
                                            "version_value": "MOS-0.32.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Arista"
                }
            ]
        }
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "data_format": "MITRE",
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-287 Improper Authentication"
                    }
                ]
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "Upgrade to MOS-0.26.7 or MOS-0.32.0\n"
        },
        {
            "lang": "eng",
            "value": "Install hotfix stored at https://www.arista.com/assets/data/SecurityAdvisories/SA64-67/SecurityAdvisory64-67-Hotfix-mos-1818-2.0.0-1.11.core2_64.rpm\nFor detailed information about hotfix installation, please see the advisory https://www.arista.com/en/support/advisories-notices/security-advisories/12912-security-advisory-64"
        }
    ],
    "data_version": "4.0",
    "references": {
        "reference_data": [
            {
                "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66",
                "refsource": "MISC",
                "name": "https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66"
            }
        ]
    },
    "CVE_data_meta": {
        "STATE": "PUBLIC",
        "ID": "CVE-2021-28495",
        "ASSIGNER": "psirt@arista.com"
    }
}