FKIE_CVE-2021-21745
Vulnerability from fkie_nvd - Published: 2021-10-20 16:15 - Updated: 2026-06-17 03:36
Severity
Summary
ZTE MF971R product has a Referer authentication bypass vulnerability. Without CSRF verification, an attackercould use this vulnerability to perform illegal authorization operations by sending a request to the user to click.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| zte | mf971r_firmware | v1.0.0b05 | |
| zte | mf971r | * | |
| zte | mf971r_firmware | 1v1.0.0b06 | |
| zte | mf971r | * | |
| zte | mf971r_firmware | 2v1.0.0b03 | |
| zte | mf971r | * | |
| zte | mf971r_firmware | s2v1.0.0b03 | |
| zte | mf971r | * | |
| zte | mf971r_firmware | sv1.0.0b05 | |
| zte | mf971r | * |
{
"affected": [
{
"affectedData": [
{
"product": "MF971R",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "BD_ZTE_MF971RV1.0.0B05, BD_PLKPLMF971R1V1.0.0B06, BD_MF971R2V1.0.0B03, BD_ZTE_MF971RS2V1.0.0B03, BD_ZTE_MF971RSV1.0.0B05"
}
]
}
],
"source": "psirt@zte.com.cn"
}
],
"configurations": [
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"vulnerable": true
}
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "ZTE MF971R product has a Referer authentication bypass vulnerability. Without CSRF verification, an attackercould use this vulnerability to perform illegal authorization operations by sending a request to the user to click."
},
{
"lang": "es",
"value": "El producto ZTE MF971R presenta una vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n Referer. Sin la verificaci\u00f3n de tipo CSRF, un atacante podr\u00eda usar esta vulnerabilidad para llevar a cabo operaciones de autorizaci\u00f3n ilegales mediante el env\u00edo de una petici\u00f3n al usuario para que haga clic"
}
],
"id": "CVE-2021-21745",
"lastModified": "2026-06-17T03:36:04.797",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-10-20T16:15:08.203",
"references": [
{
"source": "psirt@zte.com.cn",
"tags": [
"Vendor Advisory"
],
"url": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764"
},
{
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"tags": [
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"url": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764"
}
],
"sourceIdentifier": "psirt@zte.com.cn",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-352"
}
],
"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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