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vuln-cve/data/2021/22xxx/CVE-2021-22212.json
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{
"containers": {
"cna": {
"affected": [
{
"product": "ntpsec",
"vendor": "NTPsec",
"versions": [
{
"status": "affected",
"version": "=1.2.0"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Maciej Zenczykowski"
}
],
"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."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Improper filtering of special elements in ntpsec",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-06-26T02:06:11.000Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://gitlab.com/NTPsec/ntpsec/-/issues/699"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955859"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22212.json"
},
{
"name": "FEDORA-2021-3ffc890685",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GIT2HYL5BQXPGKI6ZDNG473IEQ5WQF2/"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@gitlab.com",
"ID": "CVE-2021-22212",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "ntpsec",
"version": {
"version_data": [
{
"version_value": "=1.2.0"
}
]
}
}
]
},
"vendor_name": "NTPsec"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Maciej Zenczykowski"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"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."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Improper filtering of special elements in ntpsec"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://gitlab.com/NTPsec/ntpsec/-/issues/699",
"refsource": "MISC",
"url": "https://gitlab.com/NTPsec/ntpsec/-/issues/699"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1955859",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955859"
},
{
"name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22212.json",
"refsource": "CONFIRM",
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22212.json"
},
{
"name": "FEDORA-2021-3ffc890685",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3GIT2HYL5BQXPGKI6ZDNG473IEQ5WQF2/"
}
]
}
}
},
"adp": [
{
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2024-08-03T18:37:18.446Z"
},
"title": "CVE Program Container",
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://gitlab.com/NTPsec/ntpsec/-/issues/699"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955859"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22212.json"
},
{
"name": "FEDORA-2021-3ffc890685",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GIT2HYL5BQXPGKI6ZDNG473IEQ5WQF2/"
}
]
}
]
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2021-22212",
"datePublished": "2021-06-08T12:07:02.000Z",
"dateReserved": "2021-01-05T00:00:00.000Z",
"dateUpdated": "2024-08-03T18:37:18.446Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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