fkie_cve-2016-1547
Vulnerability from fkie_nvd
Published
2017-01-06 21:59
Modified
2025-04-20 01:37
Severity ?
Summary
An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.
References
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ntp:ntp:*:p4:*:*:*:*:*:*",
"matchCriteriaId": "05D076CA-85DD-48B4-9A8A-F413FFBFB55F",
"versionEndIncluding": "4.2.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled."
},
{
"lang": "es",
"value": "Un atacante fuera de ruta puede provocar que una asociaci\u00f3n de clientes preventiva sea desmovilizada en NTP 4.2.8p4 y versiones anteriores y NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 enviando un paquete NAK encriptado a un cliente v\u00edctima con una direcci\u00f3n fuente suplantada de un asociado existente. Esto es cierto incluso si la autenticaci\u00f3n est\u00e1 habilitada."
}
],
"id": "CVE-2016-1547",
"lastModified": "2025-04-20T01:37:25.860",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2017-01-06T21:59:00.320",
"references": [
{
"source": "cret@cert.org",
"url": "http://rhn.redhat.com/errata/RHSA-2016-1552.html"
},
{
"source": "cret@cert.org",
"url": "http://www.debian.org/security/2016/dsa-3629"
},
{
"source": "cret@cert.org",
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
},
{
"source": "cret@cert.org",
"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
},
{
"source": "cret@cert.org",
"url": "http://www.securityfocus.com/bid/88276"
},
{
"source": "cret@cert.org",
"url": "http://www.securitytracker.com/id/1035705"
},
{
"source": "cret@cert.org",
"tags": [
"Mitigation",
"Technical Description",
"Third Party Advisory"
],
"url": "http://www.talosintelligence.com/reports/TALOS-2016-0081/"
},
{
"source": "cret@cert.org",
"url": "https://access.redhat.com/errata/RHSA-2016:1141"
},
{
"source": "cret@cert.org",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"
},
{
"source": "cret@cert.org",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf"
},
{
"source": "cret@cert.org",
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc"
},
{
"source": "cret@cert.org",
"url": "https://security.gentoo.org/glsa/201607-15"
},
{
"source": "cret@cert.org",
"url": "https://security.netapp.com/advisory/ntap-20171004-0002/"
},
{
"source": "cret@cert.org",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11"
},
{
"source": "cret@cert.org",
"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2016-1552.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2016/dsa-3629"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/88276"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id/1035705"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mitigation",
"Technical Description",
"Third Party Advisory"
],
"url": "http://www.talosintelligence.com/reports/TALOS-2016-0081/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2016:1141"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/201607-15"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20171004-0002/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19"
}
],
"sourceIdentifier": "cret@cert.org",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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