GSD-2021-25740
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-25740",
"description": "A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.",
"id": "GSD-2021-25740",
"references": [
"https://www.suse.com/security/cve/CVE-2021-25740.html",
"https://security.archlinux.org/CVE-2021-25740"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-25740"
],
"details": "A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.",
"id": "GSD-2021-25740",
"modified": "2023-12-13T01:23:21.088672Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
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"DATE_PUBLIC": "2021-07-14T21:23:00.000Z",
"ID": "CVE-2021-25740",
"STATE": "PUBLIC",
"TITLE": "Holes in EndpointSlice Validation Enable Host Network Hijack"
},
"affects": {
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{
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{
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"version": {
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{
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"version_value": "1.20.11"
},
{
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"version_value": "1.20.11"
},
{
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"version_value": "1.21.5"
},
{
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"credit": [
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"value": "Rob Scott"
}
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}
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"generator": {
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},
"impact": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.1,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
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"name": "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE",
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},
{
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},
{
"name": "https://security.netapp.com/advisory/ntap-20211014-0001/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20211014-0001/"
}
]
},
"source": {
"defect": [
"https://github.com/kubernetes/kubernetes/issues/103675"
],
"discovery": "EXTERNAL"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c=1.22.2",
"affected_versions": "All versions up to 1.22.2",
"cvss_v2": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
"cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-610",
"CWE-937"
],
"date": "2021-10-04",
"description": "A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.",
"fixed_versions": [],
"identifier": "CVE-2021-25740",
"identifiers": [
"GHSA-vw47-mr44-3jf9",
"CVE-2021-25740"
],
"not_impacted": "",
"package_slug": "go/k8s.io/kubernetes",
"pubdate": "2021-09-21",
"solution": "Unfortunately, there is no solution available yet.",
"title": "Externally Controlled Reference to a Resource in Another Sphere",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-25740",
"https://github.com/kubernetes/kubernetes/issues/103675",
"https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE",
"https://github.com/advisories/GHSA-vw47-mr44-3jf9"
],
"uuid": "93d964c3-b818-4cf4-a071-6006e0e70bce"
}
]
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
{
"children": [],
"cpe_match": [
{
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"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
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},
"references": {
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{
"name": "N/A",
"refsource": "MLIST",
"tags": [
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{
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"tags": [
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"url": "https://security.netapp.com/advisory/ntap-20211014-0001/"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 3.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 6.8,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.1,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.6,
"impactScore": 1.4
}
},
"lastModifiedDate": "2021-11-06T02:49Z",
"publishedDate": "2021-09-20T17:15Z"
}
}
}
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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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