FKIE_CVE-2021-20147
Vulnerability from fkie_nvd - Published: 2022-01-03 22:15 - Updated: 2026-06-17 03:33
Severity
Summary
ManageEngine ADSelfService Plus below build 6116 contains an observable response discrepancy in the UMCP operation of the ChangePasswordAPI. This allows an unauthenticated remote attacker to determine whether a Windows domain user exists.
References
| URL | Tags | ||
|---|---|---|---|
| vulnreport@tenable.com | https://www.tenable.com/security/research/tra-2021-52 | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.tenable.com/security/research/tra-2021-52 | Exploit, Third Party Advisory |
Impacted products
{
"affected": [
{
"affectedData": [
{
"product": "ManageEngine ADSelfService Plus",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "\u003c 6116"
}
]
}
],
"source": "vulnreport@tenable.com"
}
],
"configurations": [
{
"nodes": [
{
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"matchCriteriaId": "4D9FC84E-958F-450A-8400-1C51E00231A4",
"versionEndIncluding": "6.0",
"vulnerable": true
},
{
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"matchCriteriaId": "B2320EEE-367C-4CE1-8AC4-048B97DE71F3",
"vulnerable": true
},
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "ManageEngine ADSelfService Plus below build 6116 contains an observable response discrepancy in the UMCP operation of the ChangePasswordAPI. This allows an unauthenticated remote attacker to determine whether a Windows domain user exists."
},
{
"lang": "es",
"value": "ManageEngine ADSelfService Plus versiones anteriores a la compilaci\u00f3n 6116, contiene una discrepancia de respuesta observable en la operaci\u00f3n UMCP de la ChangePasswordAPI. Esto permite a un atacante remoto no autenticado determinar si se presenta un usuario de dominio de Windows"
}
],
"id": "CVE-2021-20147",
"lastModified": "2026-06-17T03:33:21.153",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"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:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-01-03T22:15:08.503",
"references": [
{
"source": "vulnreport@tenable.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://www.tenable.com/security/research/tra-2021-52"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
],
"url": "https://www.tenable.com/security/research/tra-2021-52"
}
],
"sourceIdentifier": "vulnreport@tenable.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-203"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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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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