{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-45614",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2024-09-02T16:00:02.425Z",
        "datePublished": "2024-09-19T22:42:33.974Z",
        "dateUpdated": "2024-09-20T13:54:50.515Z"
    },
    "containers": {
        "cna": {
            "title": "Header normalization allows for client to clobber proxy set headers in Puma",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-639",
                            "lang": "en",
                            "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 5.4,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/puma/puma/security/advisories/GHSA-9hf4-67fc-4vf4",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/puma/puma/security/advisories/GHSA-9hf4-67fc-4vf4"
                },
                {
                    "name": "https://nginx.org/en/docs/http/ngx_http_core_module.html#underscores_in_headers",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://nginx.org/en/docs/http/ngx_http_core_module.html#underscores_in_headers"
                }
            ],
            "affected": [
                {
                    "vendor": "puma",
                    "product": "puma",
                    "versions": [
                        {
                            "version": ">= 6.0.0, < 6.4.3",
                            "status": "affected"
                        },
                        {
                            "version": "< 5.6.9",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2024-09-19T22:42:33.974Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Puma is a Ruby/Rack web server built for parallelism. In affected versions clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users relying on proxy set variables is affected. v6.4.3/v5.6.9 now discards any headers using underscores if the non-underscore version also exists. Effectively, allowing the proxy defined headers to always win. Users are advised to upgrade. Nginx has a underscores_in_headers configuration variable to discard these headers at the proxy level as a mitigation. Any users that are implicitly trusting the proxy defined headers for security should immediately cease doing so until upgraded to the fixed versions."
                }
            ],
            "source": {
                "advisory": "GHSA-9hf4-67fc-4vf4",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-09-20T13:54:35.745068Z",
                                "id": "CVE-2024-45614",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-20T13:54:50.515Z"
                }
            }
        ]
    }
}