FKIE_CVE-2020-1672
Vulnerability from fkie_nvd - Published: 2020-10-16 21:15 - Updated: 2024-11-21 05:11
Severity
Summary
On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of specific crafted DHCP messages will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. Only DHCPv6 packet can trigger this issue. DHCPv4 packet cannot trigger this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2-S1, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA11069 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://kb.juniper.net/JSA11069 | Vendor Advisory |
Impacted products
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of specific crafted DHCP messages will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. Only DHCPv6 packet can trigger this issue. DHCPv4 packet cannot trigger this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2-S1, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2."
},
{
"lang": "es",
"value": "En los dispositivos Juniper Networks Junos OS configurados con la retransmisi\u00f3n DHCPv6 habilitada, la recepci\u00f3n de un paquete DHCPv6 espec\u00edfico podr\u00eda bloquear el demonio jdhcpd.\u0026#xa0;El demonio jdhcpd se reinicia autom\u00e1ticamente sin intervenci\u00f3n, pero la recepci\u00f3n continua de mensajes DHCP espec\u00edficos dise\u00f1ados bloquear\u00e1 repetidamente jdhcpd, conllevando una condici\u00f3n de denegaci\u00f3n de servicio (DoS) extendida.\u0026#xa0;Solo el paquete DHCPv6 puede desencadenar este problema.\u0026#xa0;El paquete DHCPv4 no puede desencadenar este problema.\u0026#xa0;Este problema afecta a Juniper Networks Junos OS: versiones 17.3 anteriores a 17.3R3-S9;\u0026#xa0;versiones 17.4 anteriores a 17.4R2-S11, 17.4R3-S2, 17.4R3-S3;\u0026#xa0;versiones 18.1 anteriores a 18.1R3-S11;\u0026#xa0;versiones 18.2 anteriores a 18.2R3-S5;\u0026#xa0;versiones 18.3 anteriores a 18.3R2-S4, 18.3R3-S3;\u0026#xa0;versiones 18.4 anteriores a 18.4R2-S5, 18.4R3-S4;\u0026#xa0;versiones 19.1 anteriores a 19.1R2-S2, 19.1R3-S2;\u0026#xa0;versiones 19.2 anteriores a 19.2R1-S5, 19.2R2-S1, 19.2R3;\u0026#xa0;versiones 19.3 anteriores a 19.\u0026#xa0;3R2-S4, 19.3R2-S4, 19.3R3;\u0026#xa0;versiones 19.4 anteriores a 19.4R1-S3, 19.4R2-S1, versiones 20.1 anteriores a 20.1R1-S3, 20.1R2"
}
],
"id": "CVE-2020-1672",
"lastModified": "2024-11-21T05:11:07.947",
"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",
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],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "sirt@juniper.net",
"type": "Secondary"
}
]
},
"published": "2020-10-16T21:15:13.147",
"references": [
{
"source": "sirt@juniper.net",
"tags": [
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],
"url": "https://kb.juniper.net/JSA11069"
},
{
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"tags": [
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],
"url": "https://kb.juniper.net/JSA11069"
}
],
"sourceIdentifier": "sirt@juniper.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "sirt@juniper.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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