CVE-2018-0122
A vulnerability in the CLI of the Cisco StarOS operating system for Cisco ASR 5000 Series Aggregation Services Routers could allow an authenticated, local attacker to overwrite system files that are stored in the flash memory of an affected system. The vulnerability is due to insufficient validation of user-supplied input by the affected operating system. An attacker could exploit this vulnerability by injecting crafted command arguments into a vulnerable CLI command for the affected operating system.
Leer descripción completaMostrar menos
A successful exploit could allow the attacker to overwrite or modify arbitrary files that are stored in the flash memory of an affected system. To exploit this vulnerability, the attacker would need to authenticate to an affected system by using valid administrator credentials. Cisco Bug IDs: CSCvf93335.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- Puntuación base: 4.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.37%
- Percentil entre todas las CVEs puntuadas: 29
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-20
- CWE-78
Referencias
- http://www.securityfocus.com/bid/103028
- http://www.securitytracker.com/id/1040340
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-asr
- http://www.securityfocus.com/bid/103028
- http://www.securitytracker.com/id/1040340
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-asr
JSON original (NVD)
Mostrar
{
"id": "CVE-2018-0122",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2018-0122",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-12-02T18:55:27.862053Z"
}
}
],
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 6.6,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:C/A:C",
"authentication": "NONE",
"integrityImpact": "COMPLETE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 9.2,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.4,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "HIGH",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 0.8
}
]
},
"affected": [
{
"source": "psirt@cisco.com",
"affectedData": [
{
"vendor": "n/a",
"product": "Cisco StarOS for Cisco ASR 5000 Series Aggregation Services Routers",
"versions": [
{
"status": "affected",
"version": "Cisco StarOS for Cisco ASR 5000 Series Aggregation Services Routers"
}
]
}
]
}
],
"published": "2018-02-08T07:29:00.477",
"references": [
{
"url": "http://www.securityfocus.com/bid/103028",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "psirt@cisco.com"
},
{
"url": "http://www.securitytracker.com/id/1040340",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "psirt@cisco.com"
},
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-asr",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
},
{
"url": "http://www.securityfocus.com/bid/103028",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securitytracker.com/id/1040340",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-asr",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@cisco.com",
"description": [
{
"lang": "en",
"value": "CWE-20"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-78"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the CLI of the Cisco StarOS operating system for Cisco ASR 5000 Series Aggregation Services Routers could allow an authenticated, local attacker to overwrite system files that are stored in the flash memory of an affected system. The vulnerability is due to insufficient validation of user-supplied input by the affected operating system. An attacker could exploit this vulnerability by injecting crafted command arguments into a vulnerable CLI command for the affected operating system. A successful exploit could allow the attacker to overwrite or modify arbitrary files that are stored in the flash memory of an affected system. To exploit this vulnerability, the attacker would need to authenticate to an affected system by using valid administrator credentials. Cisco Bug IDs: CSCvf93335."
},
{
"lang": "es",
"value": "Una vulnerabilidad en el CLI del sistema operativo Cisco StarOS para routers Cisco ASR 5000 Series Aggregation Services podría permitir que un atacante local autenticado sobrescriba archivos de sistema almacenados en la memoria flash de un sistema afectado. La vulnerabilidad se debe a la validación insuficiente de entrada de datos de parte del usuario por parte del sistema afectado. Un atacante podría explotar esta vulnerabilidad inyectando argumentos de comando manipulados en un comando de interfaz de línea de comandos vulnerable en el sistema operativo afectado. Si se explota esta vulnerabilidad con éxito, el atacante podría sobrescribir o modificar archivos arbitrarios almacenados en la memoria flash de un sistema afectado. Para explotar esta vulnerabilidad, el atacante necesitaría autenticarse en el sistema afectado empleando credenciales de administrador válidas. Cisco Bug IDs: CSCvf93335."
}
],
"lastModified": "2026-06-17T01:29:36.950",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:cisco:staros:21.3.0.67664:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DFB1F409-67DC-4627-821C-B13588AFF399"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "746254AC-B039-432C-AA5C-A82260E57AD7"
},
{
"criteria": "cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "301681DF-2A9E-4A91-9918-4A46153ADC01"
},
{
"criteria": "cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A9EF0299-16A7-446D-855D-BFF91EE65534"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "psirt@cisco.com"
}