2024-12-08 03:06:42 +00:00

191 lines
6.1 KiB
JSON

{
"id": "CVE-2021-22212",
"sourceIdentifier": "cve@gitlab.com",
"published": "2021-06-08T13:15:07.567",
"lastModified": "2024-11-21T05:49:43.237",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "ntpkeygen can generate keys that ntpd fails to parse. NTPsec 1.2.0 allows ntpkeygen to generate keys with '#' characters. ntpd then either pads, shortens the key, or fails to load these keys entirely, depending on the key type and the placement of the '#'. This results in the administrator not being able to use the keys as expected or the keys are shorter than expected and easier to brute-force, possibly resulting in MITM attacks between ntp clients and ntp servers. For short AES128 keys, ntpd generates a warning that it is padding them."
},
{
"lang": "es",
"value": "ntpkeygen puede generar claves que ntpd no puede analizar. NTPsec versi\u00f3n 1.2.0 permite a ntpkeygen generar claves con caracteres \"#\". ntpd entonces rellena, acorta la clave, o comete un fallo al cargar estas claves por completo, dependiendo del tipo de clave y la colocaci\u00f3n del \"#\". Esto hace que el administrador no pueda usar las claves como se esperaba o que las claves sean m\u00e1s cortas de lo esperado y m\u00e1s f\u00e1ciles de forzar, resultando posiblemente en ataques MITM entre clientes ntp y servidores ntp. Para claves AES128 cortas, ntpd genera una advertencia de que las est\u00e1 rellenando"
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "cve@gitlab.com",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N",
"baseScore": 4.0,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "HIGH",
"privilegesRequired": "HIGH",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 0.3,
"impactScore": 3.6
},
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.2,
"impactScore": 5.2
}
],
"cvssMetricV2": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"baseScore": 5.8,
"accessVector": "NETWORK",
"accessComplexity": "MEDIUM",
"authentication": "NONE",
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"availabilityImpact": "NONE"
},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-327"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:ntpsec:ntpsec:1.2.0:*:*:*:*:*:*:*",
"matchCriteriaId": "7017EBAD-09C2-4FD3-9EE5-FF0C5861C788"
}
]
}
]
},
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
"matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835"
}
]
}
]
}
],
"references": [
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955859",
"source": "cve@gitlab.com",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
]
},
{
"url": "https://gitlab.com/NTPsec/ntpsec/-/issues/699",
"source": "cve@gitlab.com",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
]
},
{
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22212.json",
"source": "cve@gitlab.com",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GIT2HYL5BQXPGKI6ZDNG473IEQ5WQF2/",
"source": "cve@gitlab.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955859",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
]
},
{
"url": "https://gitlab.com/NTPsec/ntpsec/-/issues/699",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
]
},
{
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22212.json",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GIT2HYL5BQXPGKI6ZDNG473IEQ5WQF2/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
]
}