CVE-2021-20595 (GCVE-0-2021-20595)
Vulnerability from cvelistv5 – Published: 2021-07-13 10:54 – Updated: 2024-08-03 17:45
VLAI
EPSS
VEX
Summary
Improper Restriction of XML External Entity Reference vulnerability in Mitsubishi Electric Air Conditioning System/Centralized Controllers (G-50A Ver.3.35 and prior, GB-50A Ver.3.35 and prior, GB-24A Ver.9.11 and prior, AG-150A-A Ver.3.20 and prior, AG-150A-J Ver.3.20 and prior, GB-50ADA-A Ver.3.20 and prior, GB-50ADA-J Ver.3.20 and prior, EB-50GU-A Ver 7.09 and prior, EB-50GU-J Ver 7.09 and prior, AE-200A Ver 7.93 and prior, AE-200E Ver 7.93 and prior, AE-50A Ver 7.93 and prior, AE-50E Ver 7.93 and prior, EW-50A Ver 7.93 and prior, EW-50E Ver 7.93 and prior, TE-200A Ver 7.93 and prior, TE-50A Ver 7.93 and prior, TW-50A Ver 7.93 and prior, CMS-RMD-J Ver.1.30 and prior), Air Conditioning System/Expansion Controllers (PAC-YG50ECA Ver.2.20 and prior) and Air Conditioning System/BM adapter(BAC-HD150 Ver.2.21 and prior) allows a remote unauthenticated attacker to disclose some of data in the air conditioning system or cause a DoS condition by sending specially crafted packets.
Severity
8.2 (High)
CWE
- Improper Restriction of XML External Entity Reference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.mitsubishielectric.com/en/psirt/vulne… | x_refsource_MISC |
| https://jvn.jp/vu/JVNVU93086468/index.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | Air Conditioning System/Centralized Controllers G-50A; GB-50A; GB-24A; AG-150A-A; AG-150A-J; GB-50ADA-A; GB-50ADA-J; EB-50GU-A; EB-50GU-J; AE-200A; AE-200E; AE-50A; AE-50E; EW-50A; EW-50E; TE-200A; TE-50A; TW-50A; CMS-RMD-J; Air Conditioning System/Expansion Controllers PAC-YG50ECA; Air Conditioning System/BM adapter BAC-HD150 |
Affected:
Ver.3.35 and prior
Affected: Ver.9.11 and prior Affected: Ver.3.20 and prior Affected: Ver 7.09 and prior Affected: Ver 7.93 and prior Affected: Ver.1.30 and prior Affected: Ver.2.20 and prior Affected: Ver.2.21 and prior |
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"value": "Una vulnerabilidad de restricci\u00f3n inapropiada de referencia de tipo XML External Entity en Mitsubishi Electric Air Conditioning System/Centralized Controllers versiones: (G-50A Ver.3.35 y anteriores, GB-50A Ver.3.35 y anteriores, GB-24A Ver.9.11 y anteriores, AG-150A-A Ver.3.20 y anteriores, AG-150A-J Ver.3.20 y anteriores, GB-50ADA-A Ver.3.20 y anteriores, GB-50ADA-J Ver.3 .20 y anteriores, EB-50GU-A Ver 7.09 y anteriores, EB-50GU-J Ver 7.09 y anteriores, AE-200A Ver 7.93 y anteriores, AE-200E Ver 7.93 y anteriores, AE-50A Ver 7.93 y anteriores, AE-50E Ver 7.93 y anteriores, EW-50A Ver 7.93 y anteriores, EW-50E Ver 7.93 y anteriores, TE-200A Ver 7.93 y anteriores, TE-50A Ver 7.93 y anteriores, TW-50A Ver 7.93 y anteriores, CMS-RMD-J Ver.1 .30 y anteriores), Air Conditioning System/Expansion Controllers (PAC-YG50ECA Ver.2.20 y anteriores) y Sistema de Aire Acondicionado/Adaptador BM (BAC-HD150 Ver.2.21 y anteriores) permite a un atacante remoto no autenticado divulgar algunos de los datos del sistema de aire acondicionado o causar una condici\u00f3n de DoS mediante el env\u00edo de paquetes especialmente dise\u00f1ados"
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"value": "Improper Restriction of XML External Entity Reference vulnerability in Mitsubishi Electric Air Conditioning System/Centralized Controllers (G-50A Ver.3.35 and prior, GB-50A Ver.3.35 and prior, GB-24A Ver.9.11 and prior, AG-150A-A Ver.3.20 and prior, AG-150A-J Ver.3.20 and prior, GB-50ADA-A Ver.3.20 and prior, GB-50ADA-J Ver.3.20 and prior, EB-50GU-A Ver 7.09 and prior, EB-50GU-J Ver 7.09 and prior, AE-200A Ver 7.93 and prior, AE-200E Ver 7.93 and prior, AE-50A Ver 7.93 and prior, AE-50E Ver 7.93 and prior, EW-50A Ver 7.93 and prior, EW-50E Ver 7.93 and prior, TE-200A Ver 7.93 and prior, TE-50A Ver 7.93 and prior, TW-50A Ver 7.93 and prior, CMS-RMD-J Ver.1.30 and prior), Air Conditioning System/Expansion Controllers (PAC-YG50ECA Ver.2.20 and prior) and Air Conditioning System/BM adapter(BAC-HD150 Ver.2.21 and prior) allows a remote unauthenticated attacker to disclose some of data in the air conditioning system or cause a DoS condition by sending specially crafted packets."
},
{
"lang": "es",
"value": "Una vulnerabilidad de restricci\u00f3n inapropiada de referencia de tipo XML External Entity en Mitsubishi Electric Air Conditioning System/Centralized Controllers versiones: (G-50A Ver.3.35 y anteriores, GB-50A Ver.3.35 y anteriores, GB-24A Ver.9.11 y anteriores, AG-150A-A Ver.3.20 y anteriores, AG-150A-J Ver.3.20 y anteriores, GB-50ADA-A Ver.3.20 y anteriores, GB-50ADA-J Ver.3 .20 y anteriores, EB-50GU-A Ver 7.09 y anteriores, EB-50GU-J Ver 7.09 y anteriores, AE-200A Ver 7.93 y anteriores, AE-200E Ver 7.93 y anteriores, AE-50A Ver 7.93 y anteriores, AE-50E Ver 7.93 y anteriores, EW-50A Ver 7.93 y anteriores, EW-50E Ver 7.93 y anteriores, TE-200A Ver 7.93 y anteriores, TE-50A Ver 7.93 y anteriores, TW-50A Ver 7.93 y anteriores, CMS-RMD-J Ver.1 .30 y anteriores), Air Conditioning System/Expansion Controllers (PAC-YG50ECA Ver.2.20 y anteriores) y Sistema de Aire Acondicionado/Adaptador BM (BAC-HD150 Ver.2.21 y anteriores) permite a un atacante remoto no autenticado divulgar algunos de los datos del sistema de aire acondicionado o causar una condici\u00f3n de DoS mediante el env\u00edo de paquetes especialmente dise\u00f1ados"
}
],
"id": "CVE-2021-20595",
"lastModified": "2024-11-21T05:46:50.793",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 8.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 7.8,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-07-13T11:15:09.327",
"references": [
{
"source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
"tags": [
"Third Party Advisory"
],
"url": "https://jvn.jp/vu/JVNVU93086468/index.html"
},
{
"source": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
"tags": [
"Vendor Advisory"
],
"url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-005_en.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://jvn.jp/vu/JVNVU93086468/index.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-005_en.pdf"
}
],
"sourceIdentifier": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-611"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T15:01:29+00:00",
"cve": "CVE-2021-20595",
"id": "CVE-2021-20595",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-20595",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-20595.json",
"version": "3"
}
}
}
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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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