CVE-2020-8184
Estado: ModificadaAlta (7.5)—
A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 that makes it is possible for an attacker to forge a secure or host-only cookie prefix.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.94%
- Percentil entre todas las CVEs puntuadas: 87
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (3)
CWE
- CWE-784
- CWE-20
Referencias
- https://groups.google.com/g/rubyonrails-security/c/OWtmozPH9Ak
- https://hackerone.com/reports/895727
- https://lists.debian.org/debian-lts-announce/2020/07/msg00006.html
- https://lists.debian.org/debian-lts-announce/2023/01/msg00038.html
- https://usn.ubuntu.com/4561-1/
- https://groups.google.com/g/rubyonrails-security/c/OWtmozPH9Ak
- https://hackerone.com/reports/895727
- https://lists.debian.org/debian-lts-announce/2020/07/msg00006.html
- https://lists.debian.org/debian-lts-announce/2023/01/msg00038.html
- https://usn.ubuntu.com/4561-1/
JSON original (NVD)
Mostrar
{
"id": "CVE-2020-8184",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "support@hackerone.com",
"affectedData": [
{
"vendor": "n/a",
"product": "https://github.com/rack/rack",
"versions": [
{
"status": "affected",
"version": "rack >= 2.2.3, rack >= 2.1.4"
}
]
}
]
}
],
"published": "2020-06-19T17:15:18.757",
"references": [
{
"url": "https://groups.google.com/g/rubyonrails-security/c/OWtmozPH9Ak",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://hackerone.com/reports/895727",
"tags": [
"Exploit",
"Patch",
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00006.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2023/01/msg00038.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://usn.ubuntu.com/4561-1/",
"tags": [
"Third Party Advisory"
],
"source": "support@hackerone.com"
},
{
"url": "https://groups.google.com/g/rubyonrails-security/c/OWtmozPH9Ak",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://hackerone.com/reports/895727",
"tags": [
"Exploit",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00006.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2023/01/msg00038.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://usn.ubuntu.com/4561-1/",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "support@hackerone.com",
"description": [
{
"lang": "en",
"value": "CWE-784"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-20"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A reliance on cookies without validation/integrity check security vulnerability exists in rack < 2.2.3, rack < 2.1.4 that makes it is possible for an attacker to forge a secure or host-only cookie prefix."
},
{
"lang": "es",
"value": "Se presenta una dependencia de las cookies sin vulnerabilidad de seguridad de control de validación e integridad en rack versiones anteriores a 2.2.3, rack versiones anteriores a 2.1.4, que hace posible a un atacante forjar un prefijo de cookie seguro o solo de host"
}
],
"lastModified": "2026-06-17T03:26:00.600",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:rack_project:rack:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9A2DAF3B-ED2C-45BC-A171-90CDF9FAFB5F",
"versionEndExcluding": "2.1.4"
},
{
"criteria": "cpe:2.3:a:rack_project:rack:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AEF24106-652B-4267-A9C1-16B2C4182031",
"versionEndExcluding": "2.2.3",
"versionStartIncluding": "2.2.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"vulnerable": true,
"matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "support@hackerone.com"
}