CVE-2021-3948 (GCVE-0-2021-3948)
Vulnerability from cvelistv5 – Published: 2022-02-18 00:00 – Updated: 2024-08-03 17:09
VLAI
EPSS
VEX
Summary
An incorrect default permissions vulnerability was found in the mig-controller. Due to an incorrect cluster namespaces handling an attacker may be able to migrate a malicious workload to the target cluster, impacting confidentiality, integrity, and availability of the services located on that cluster.
Severity
6.3 (Medium)
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | mig-controller |
Affected:
konveyor/mig-controller release-1.5.2, konveyor/mig-controller release-1.6.3
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T17:09:09.782Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2022017"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "mig-controller",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "konveyor/mig-controller release-1.5.2, konveyor/mig-controller release-1.6.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An incorrect default permissions vulnerability was found in the mig-controller. Due to an incorrect cluster namespaces handling an attacker may be able to migrate a malicious workload to the target cluster, impacting confidentiality, integrity, and availability of the services located on that cluster."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-276",
"description": "CWE-276",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-10-07T00:00:00.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2022017"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2021-3948",
"datePublished": "2022-02-18T00:00:00.000Z",
"dateReserved": "2021-11-11T00:00:00.000Z",
"dateUpdated": "2024-08-03T17:09:09.782Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-3948",
"date": "2026-09-25",
"epss": "0.00564",
"percentile": "0.445"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:konveyor:mig-controller:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2BEBE197-19F0-4738-AE21-715296E05F63",
"versionEndExcluding": "1.5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:konveyor:mig-controller:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0AC4AD97-DD8E-4849-856D-B9264FC21F47",
"versionEndExcluding": "1.6.3",
"versionStartIncluding": "1.6.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:migration_toolkit:1.0:*:*:*:*:*:*:*",
"matchCriteriaId": "7064499F-9063-4181-A26F-A3476C46CFE9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A",
"vulnerable": false
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:migration_toolkit:1.5:*:*:*:*:containers:*:*",
"matchCriteriaId": "9CF0EEAC-161B-474A-A3C9-81C1A06A2243",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:redhat:migration_toolkit:1.6:*:*:*:*:containers:*:*",
"matchCriteriaId": "9D54CFEF-50FA-4696-B306-3FDC31280C61",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An incorrect default permissions vulnerability was found in the mig-controller. Due to an incorrect cluster namespaces handling an attacker may be able to migrate a malicious workload to the target cluster, impacting confidentiality, integrity, and availability of the services located on that cluster."
},
{
"lang": "es",
"value": "Se ha encontrado una vulnerabilidad de permisos por defecto incorrectos en el controlador mig. Debido a un manejo incorrecto de espacios de nombres del cluster, un atacante puede ser capaz de migrar una carga de trabajo maliciosa al cluster de destino, impactando la confidencialidad, integridad y disponibilidad de los servicios ubicados en ese cluster"
}
],
"id": "CVE-2021-3948",
"lastModified": "2024-11-21T06:23:13.213",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-02-18T18:15:09.833",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2022017"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2022017"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-276"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-276"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "mig-controller",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "konveyor/mig-controller release-1.5.2, konveyor/mig-controller release-1.6.3"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:konveyor:mig-controller:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2BEBE197-19F0-4738-AE21-715296E05F63",
"versionEndExcluding": "1.5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:konveyor:mig-controller:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0AC4AD97-DD8E-4849-856D-B9264FC21F47",
"versionEndExcluding": "1.6.3",
"versionStartIncluding": "1.6.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:migration_toolkit:1.0:*:*:*:*:*:*:*",
"matchCriteriaId": "7064499F-9063-4181-A26F-A3476C46CFE9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A",
"vulnerable": false
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:migration_toolkit:1.5:*:*:*:*:containers:*:*",
"matchCriteriaId": "9CF0EEAC-161B-474A-A3C9-81C1A06A2243",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:redhat:migration_toolkit:1.6:*:*:*:*:containers:*:*",
"matchCriteriaId": "9D54CFEF-50FA-4696-B306-3FDC31280C61",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An incorrect default permissions vulnerability was found in the mig-controller. Due to an incorrect cluster namespaces handling an attacker may be able to migrate a malicious workload to the target cluster, impacting confidentiality, integrity, and availability of the services located on that cluster."
},
{
"lang": "es",
"value": "Se ha encontrado una vulnerabilidad de permisos por defecto incorrectos en el controlador mig. Debido a un manejo incorrecto de espacios de nombres del cluster, un atacante puede ser capaz de migrar una carga de trabajo maliciosa al cluster de destino, impactando la confidencialidad, integridad y disponibilidad de los servicios ubicados en ese cluster"
}
],
"id": "CVE-2021-3948",
"lastModified": "2026-06-17T04:06:16.863",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-02-18T18:15:09.833",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2022017"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2022017"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-276"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-276"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T15:50:40+00:00",
"cve": "CVE-2021-3948",
"id": "CVE-2021-3948",
"initial_release_date": "2021-11-10T00:00:00+00:00",
"product_status:fixed": "2",
"product_status:known_not_affected": "26",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "mig-controller: incorrect namespaces handling may lead to not authorized usage of Migration Toolkit for Containers (MTC)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3948.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…