CVE-2017-3856 (GCVE-0-2017-3856)
Vulnerability from cvelistv5 – Published: 2017-03-22 19:00 – Updated: 2024-08-05 14:39
VLAI
EPSS
VEX
Summary
A vulnerability in the web user interface of Cisco IOS XE 3.1 through 3.17 could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient resource handling by the affected software when the web user interface is under a high load. An attacker could exploit this vulnerability by sending a high number of requests to the web user interface of the affected software. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. To exploit this vulnerability, the attacker must have access to the management interface of the affected software, which is typically connected to a restricted management network. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the web user interface of the software is enabled. By default, the web user interface is not enabled. Cisco Bug IDs: CSCup70353.
Severity
7.5 (High)
CWE
- CWE-399 - Denial of Service Vulnerability
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://www.securitytracker.com/id/1038101 | vdb-entryx_refsource_SECTRACK |
| https://tools.cisco.com/security/center/content/C… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/97007 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Cisco IOS XE |
Affected:
Cisco IOS XE
|
Date Public
2017-03-22 00:00
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web user interface of Cisco IOS XE 3.1 through 3.17 could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient resource handling by the affected software when the web user interface is under a high load. An attacker could exploit this vulnerability by sending a high number of requests to the web user interface of the affected software. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. To exploit this vulnerability, the attacker must have access to the management interface of the affected software, which is typically connected to a restricted management network. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the web user interface of the software is enabled. By default, the web user interface is not enabled. Cisco Bug IDs: CSCup70353."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la interface web del usuario de Cisco IOS XE 3.1 en versiones hasta 3.17 podr\u00eda permitir a un atacante remoto no autenticado hacer que un dispositivo afectado se recargue. La vulnerabilidad se debe al manejo insuficiente de los recursos por el software afectado cuando la interfaz de usuario web est\u00e1 bajo una carga alta. Un atacante podr\u00eda explotar esta vulnerabilidad enviando un gran n\u00famero de solicitudes a la interfaz de usuario web del software afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante hacer que el dispositivo afectado se vuelva a cargar, dando como resultado una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Para aprovechar esta vulnerabilidad, el atacante debe tener acceso a la interfaz de administraci\u00f3n del software afectado, que suele estar conectado a una red de administraci\u00f3n restringida. Esta vulnerabilidad afecta a los dispositivos Cisco que ejecutan una versi\u00f3n vulnerable del software Cisco IOS XE, si est\u00e1 habilitada la interfaz de usuario web del software. De forma predeterminada, la interfaz de usuario web no est\u00e1 habilitada. ID de bugs de Cisco: CSCup70353."
}
],
"id": "CVE-2017-3856",
"lastModified": "2026-06-17T01:19:03.563",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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],
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{
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"attackVector": "NETWORK",
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"baseScore": 7.5,
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"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:H",
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"source": "nvd@nist.gov",
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},
"published": "2017-03-22T19:59:00.277",
"references": [
{
"source": "psirt@cisco.com",
"tags": [
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"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/97007"
},
{
"source": "psirt@cisco.com",
"url": "http://www.securitytracker.com/id/1038101"
},
{
"source": "psirt@cisco.com",
"tags": [
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],
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-webui"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://www.securityfocus.com/bid/97007"
},
{
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"url": "http://www.securitytracker.com/id/1038101"
},
{
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"tags": [
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],
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-webui"
}
],
"sourceIdentifier": "psirt@cisco.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-399"
}
],
"source": "psirt@cisco.com",
"type": "Secondary"
},
{
"description": [
{
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"value": "CWE-400"
}
],
"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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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