CVE-2020-5232 - Vulnerability Details - OpenCVE

A user who owns an ENS domain can set a trapdoor, allowing them to transfer ownership to another user, and later regain ownership without the new owners consent or awareness. A new ENS deployment is being rolled out that fixes this vulnerability in the ENS registry.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00784.

Key SSVC decision points have not yet been added.

Vendors	Products
Ens.domains	Ethereum Name Service

Configuration 1 [-]

cpe:2.3:a:ens.domains:ethereum_name_service:*:*:*:*:*:*:*:*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf
https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h

History

Sun, 13 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00601}`	epss `{'score': 0.00784}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2020-01-30T23:55:13

Updated: 2024-08-04T08:22:09.005Z

Reserved: 2020-01-02T00:00:00

Link: CVE-2020-5232

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-01-31T00:15:09.973

Modified: 2024-11-21T05:33:43.693

Link: CVE-2020-5232

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"cna": {"affected": [{"product": "@ensdomains/ens", "vendor": "ensdomains", "versions": [{"status": "affected", "version": "< 0.4.0"}]}], "descriptions": [{"lang": "en", "value": "A user who owns an ENS domain can set a trapdoor, allowing them to transfer ownership to another user, and later regain ownership without the new owners consent or awareness. A new ENS deployment is being rolled out that fixes this vulnerability in the ENS registry."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-285", "description": "CWE-285: Improper Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-01-30T23:55:13", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf"}], "source": {"advisory": "GHSA-8f9f-pc5v-9r5h", "discovery": "UNKNOWN"}, "title": "Ethereum Name Service - Malicious takeover of previously owned ENS names", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-5232", "STATE": "PUBLIC", "TITLE": "Ethereum Name Service - Malicious takeover of previously owned ENS names"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "@ensdomains/ens", "version": {"version_data": [{"version_value": "< 0.4.0"}]}}]}, "vendor_name": "ensdomains"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A user who owns an ENS domain can set a trapdoor, allowing them to transfer ownership to another user, and later regain ownership without the new owners consent or awareness. A new ENS deployment is being rolled out that fixes this vulnerability in the ENS registry."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-285: Improper Authorization"}]}]}, "references": {"reference_data": [{"name": "https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h", "refsource": "CONFIRM", "url": "https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h"}, {"name": "https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf", "refsource": "MISC", "url": "https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf"}]}, "source": {"advisory": "GHSA-8f9f-pc5v-9r5h", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T08:22:09.005Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-5232", "datePublished": "2020-01-30T23:55:13", "dateReserved": "2020-01-02T00:00:00", "dateUpdated": "2024-08-04T08:22:09.005Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ens.domains:ethereum_name_service:*:*:*:*:*:*:*:*", "matchCriteriaId": "5BD0EF07-B011-4E02-A82A-D8A01CA22F74", "versionEndIncluding": "0.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A user who owns an ENS domain can set a trapdoor, allowing them to transfer ownership to another user, and later regain ownership without the new owners consent or awareness. A new ENS deployment is being rolled out that fixes this vulnerability in the ENS registry."}, {"lang": "es", "value": "Un usuario que posee un dominio ENS puede establecer una trapdoor, permiti\u00e9ndole transferir la propiedad a otro usuario y luego recuperar la propiedad sin el consentimiento o conocimiento de los nuevos propietarios. Se est\u00e1 poniendo en funcionamiento una nueva implementaci\u00f3n de ENS que corrige esta vulnerabilidad en el registro de ENS."}], "id": "CVE-2020-5232", "lastModified": "2024-11-21T05:33:43.693", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.9, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 5.8, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 5.8, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-01-31T00:15:09.973", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/ensdomains/ens/commit/36e10e71fcddcade88646821e0a57cc6c19e1ecf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/ensdomains/ens/security/advisories/GHSA-8f9f-pc5v-9r5h"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-285"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}