FKIE_CVE-2021-42852
Vulnerability from fkie_nvd - Published: 2022-05-18 16:15 - Updated: 2026-06-17 04:10
Severity
8.0 (High) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.0 (High) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.0 (High) - CVSS:3.1/
Summary
A command injection vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an authenticated user to execute operating system commands by sending a crafted packet to the device.
References
| URL | Tags | ||
|---|---|---|---|
| psirt@lenovo.com | https://iknow.lenovo.com.cn/detail/dc_200017.html | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://iknow.lenovo.com.cn/detail/dc_200017.html | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| lenovo | a1_firmware | * | |
| lenovo | a1 | - | |
| lenovo | t1_firmware | * | |
| lenovo | t1 | - | |
| lenovo | x1_firmware | * | |
| lenovo | x1 | - | |
| lenovo | t2_firmware | * | |
| lenovo | t2 | - | |
| lenovo | t2pro_firmware | * | |
| lenovo | t2pro | - |
{
"affected": [
{
"affectedData": [
{
"product": "Personal Cloud Storage A1",
"vendor": "Lenovo",
"versions": [
{
"lessThan": "5.3.6.a1",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Personal Cloud Storage T1",
"vendor": "Lenovo",
"versions": [
{
"lessThan": "5.3.6.t1",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Personal Cloud Storage X1",
"vendor": "Lenovo",
"versions": [
{
"lessThan": "5.3.8.x1",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Personal Cloud Storage T2",
"vendor": "Lenovo",
"versions": [
{
"lessThan": "5.3.8.t2",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Personal Cloud Storage T2Pro",
"vendor": "Lenovo",
"versions": [
{
"lessThan": "5.3.7.t2-pro",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"source": "psirt@lenovo.com"
}
],
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A command injection vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an authenticated user to execute operating system commands by sending a crafted packet to the device."
},
{
"lang": "es",
"value": "Se inform\u00f3 de una vulnerabilidad de inyecci\u00f3n de comandos en algunos dispositivos Lenovo Personal Cloud Storage que podr\u00eda permitir a un usuario autenticado ejecutar comandos del sistema operativo mediante el env\u00edo de un paquete dise\u00f1ado al dispositivo"
}
],
"id": "CVE-2021-42852",
"lastModified": "2026-06-17T04:10:12.417",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.7,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:A/AC:L/Au:S/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 5.1,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 5.9,
"source": "psirt@lenovo.com",
"type": "Secondary"
},
{
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-05-18T16:15:08.417",
"references": [
{
"source": "psirt@lenovo.com",
"tags": [
"Vendor Advisory"
],
"url": "https://iknow.lenovo.com.cn/detail/dc_200017.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://iknow.lenovo.com.cn/detail/dc_200017.html"
}
],
"sourceIdentifier": "psirt@lenovo.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-78"
}
],
"source": "psirt@lenovo.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-78"
}
],
"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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