GSD-2020-8555
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-8555",
"description": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
"id": "GSD-2020-8555",
"references": [
"https://www.suse.com/security/cve/CVE-2020-8555.html",
"https://access.redhat.com/errata/RHSA-2020:2594",
"https://access.redhat.com/errata/RHSA-2020:2479",
"https://access.redhat.com/errata/RHSA-2020:2449",
"https://access.redhat.com/errata/RHSA-2020:2448",
"https://access.redhat.com/errata/RHSA-2020:2441",
"https://access.redhat.com/errata/RHSA-2020:2440",
"https://linux.oracle.com/cve/CVE-2020-8555.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-8555"
],
"details": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
"id": "GSD-2020-8555",
"modified": "2023-12-13T01:21:53.665168Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"AKA": "",
"ASSIGNER": "security@kubernetes.io",
"DATE_PUBLIC": "",
"ID": "CVE-2020-8555",
"STATE": "PUBLIC",
"TITLE": "Kubernetes kube-controller-manager SSRF"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Kubernetes",
"version": {
"version_data": [
{
"platform": "",
"version_affected": "\u003c",
"version_name": "1.15",
"version_value": "1.15.12"
},
{
"platform": "",
"version_affected": "\u003c",
"version_name": "1.16",
"version_value": "1.16.9"
},
{
"platform": "",
"version_affected": "\u003c",
"version_name": "1.17",
"version_value": "1.17.5"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.18.0"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.1"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.2"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.3"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.4"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.5"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.6"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.7"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.8"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.9"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.10"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.11"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.12"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.13"
},
{
"platform": "",
"version_affected": "",
"version_name": "",
"version_value": "1.14"
}
]
}
}
]
},
"vendor_name": "Kubernetes"
}
]
}
},
"configuration": [],
"credit": [
{
"lang": "eng",
"value": "Brice Augras from Groupe-Asten and Christophe Hauquiert from Nokia"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services)."
}
]
},
"exploit": [],
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-918 Server-Side Request Forgery (SSRF)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[oss-security] 20200601 CVE-2020-8555: Kubernetes: Half-Blind SSRF in kube-controller-manager",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2020/06/01/4"
},
{
"name": "",
"refsource": "MLIST",
"url": "https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion"
},
{
"name": "https://github.com/kubernetes/kubernetes/issues/91542",
"refsource": "CONFIRM",
"url": "https://github.com/kubernetes/kubernetes/issues/91542"
},
{
"name": "FEDORA-2020-aeea04cd13",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/"
},
{
"name": "https://security.netapp.com/advisory/ntap-20200724-0005/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20200724-0005/"
},
{
"name": "[oss-security] 20210504 [kubernetes] CVE-2020-8562: Bypass of Kubernetes API Server proxy TOCTOU",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2021/05/04/8"
}
]
},
"solution": [],
"source": {
"advisory": "",
"defect": [
"https://github.com/kubernetes/kubernetes/issues/91542"
],
"discovery": "EXTERNAL"
},
"work_around": [
{
"lang": "eng",
"value": "Prior to upgrading, this vulnerability can be mitigated by adding endpoint protections on the master or restricting usage of the vulnerable volume types (for example by constraining usage with a PodSecurityPolicy or third-party admission controller such as Gatekeeper) and restricting StorageClass write permissions through RBAC."
}
]
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003cv1.15.11 || \u003e=v1.16.0 \u003cv1.16.9 || \u003e=v1.17.0 \u003cv1.17.5 || =v1.18.0",
"affected_versions": "All versions before 1.15.11, all versions starting from 1.16.0 before 1.16.9, all versions starting from 1.17.0 before 1.17.5, version 1.18.0",
"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:C/C:H/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-918",
"CWE-937"
],
"date": "2021-05-04",
"description": "The Kubernetes kube-controller-manager is vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
"fixed_versions": [
"v1.15.11",
"v1.16.9",
"v1.17.5",
"v1.18.1-beta.0"
],
"identifier": "CVE-2020-8555",
"identifiers": [
"CVE-2020-8555"
],
"not_impacted": "All versions starting from 1.15.11 before 1.16.0, all versions starting from 1.16.9 before 1.17.0, all versions starting from 1.17.5 before 1.18.0, all versions after 1.18.0",
"package_slug": "go/github.com/kubernetes/kubernetes",
"pubdate": "2020-06-05",
"solution": "Upgrade to versions 1.15.11, 1.16.9, 1.17.5, 1.18.1-beta.0 or above. *Note*: 1.18.1-beta.0 may be an unstable version. Use caution.",
"title": "Server-Side Request Forgery (SSRF)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-8555"
],
"uuid": "49421dfe-0e2d-413e-b572-b20d7a119e7a",
"versions": [
{
"commit": {
"sha": "38d05c7c415152c9249ad0c553cbbcb86f247a68",
"tags": [
"v1.16.0"
],
"timestamp": "20190913145653"
},
"number": "v1.16.0"
},
{
"commit": {
"sha": "02a9c9f39a18ee40c37835c36c7c80e0797b0d85",
"tags": [
"v1.17.0"
],
"timestamp": "20191206012503"
},
"number": "v1.17.0"
},
{
"commit": {
"sha": "bc19501317000efb086595adb9ad5f3627a6d95a",
"tags": [
"v1.15.11"
],
"timestamp": "20200312205918"
},
"number": "v1.15.11"
},
{
"commit": {
"sha": "6ac870f868255d1d40ce3ac115b62f8d5e02e8a3",
"tags": [
"v1.18.1-beta.0"
],
"timestamp": "20200325144952"
},
"number": "v1.18.1-beta.0"
},
{
"commit": {
"sha": "f6cc41b23ef90243e9dbba5fbad501630caaa737",
"tags": [
"v1.18.0"
],
"timestamp": "20200325144952"
},
"number": "v1.18.0"
},
{
"commit": {
"sha": "270e315bf98d867a302bec5c1d0b9ed045708bf2",
"tags": [
"v1.17.5"
],
"timestamp": "20200416113457"
},
"number": "v1.17.5"
},
{
"commit": {
"sha": "9c4650b12ad33a2a41b0f474ec11c2bf1371658e",
"tags": [
"v1.16.9"
],
"timestamp": "20200416113528"
},
"number": "v1.16.9"
}
]
},
{
"affected_range": "\u003e=1.18.0 \u003c1.18.1||\u003e=1.17.0 \u003c1.17.4||\u003e=1.16.0 \u003c1.16.9||\u003c1.15.12",
"affected_versions": "All versions starting from 1.18.0 before 1.18.1, all versions starting from 1.17.0 before 1.17.4, all versions starting from 1.16.0 before 1.16.9, all versions before 1.15.12",
"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:C/C:H/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-918",
"CWE-937"
],
"date": "2022-04-12",
"description": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 is vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
"fixed_versions": [
"1.18.1",
"1.18.1",
"1.16.9",
"1.15.12",
"1.15.12"
],
"identifier": "CVE-2020-8555",
"identifiers": [
"GHSA-x6mj-w4jf-jmgw",
"CVE-2020-8555"
],
"not_impacted": "All versions before 1.18.0, all versions starting from 1.18.1, all versions before 1.17.0, all versions starting from 1.17.4, all versions before 1.16.0, all versions starting from 1.15.12 before 1.16.9",
"package_slug": "go/github.com/kubernetes/kubernetes/pkg/volume/storageos",
"pubdate": "2022-02-15",
"solution": "Upgrade to versions 1.18.1, 1.18.1, 1.16.9, 1.15.12, 1.15.12 or above.",
"title": "Server-Side Request Forgery (SSRF)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-8555",
"https://github.com/kubernetes/kubernetes/issues/91542",
"https://github.com/kubernetes/kubernetes/pull/89794",
"https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion",
"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/",
"https://security.netapp.com/advisory/ntap-20200724-0005/",
"http://www.openwall.com/lists/oss-security/2020/06/01/4",
"http://www.openwall.com/lists/oss-security/2021/05/04/8",
"https://github.com/advisories/GHSA-x6mj-w4jf-jmgw"
],
"uuid": "0df79936-304b-41b2-8141-a19199f9ddd8"
},
{
"affected_range": "\u003c1.15.11||\u003e=1.16.0 \u003c1.16.9||\u003e=1.17.0 \u003c1.17.5||\u003e=1.18.0 \u003c1.18.1",
"affected_versions": "All versions before 1.15.11, all versions starting from 1.16.0 before 1.16.9, all versions starting from 1.17.0 before 1.17.5, version 1.18.0",
"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:C/C:H/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-918",
"CWE-937"
],
"date": "2021-05-04",
"description": "The Kubernetes kube-controller-manager is vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
"fixed_versions": [
"1.15.11",
"1.16.9",
"1.17.5",
"1.18.1"
],
"identifier": "CVE-2020-8555",
"identifiers": [
"CVE-2020-8555"
],
"not_impacted": "All versions starting from 1.15.11 before 1.16.0, all versions starting from 1.17.5 before 1.18.0, all versions starting from 1.18.1",
"package_slug": "go/k8s.io/kubernetes/pkg/apis/apps/validation",
"pubdate": "2020-06-05",
"solution": "Upgrade to version 1.15.11, 1.16.9, 1.17.5, 1.18.1 or above.",
"title": "Server-Side Request Forgery (SSRF)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-8555"
],
"uuid": "17a622d8-557c-4209-9a96-aa69e3d747eb"
}
]
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:kubernetes:kubernetes:1.18.0:-:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.15.11",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.17.5",
"versionStartIncluding": "1.17.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.16.9",
"versionStartIncluding": "1.16.0",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "security@kubernetes.io",
"ID": "CVE-2020-8555"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services)."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "N/A",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion"
},
{
"name": "https://github.com/kubernetes/kubernetes/issues/91542",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/kubernetes/kubernetes/issues/91542"
},
{
"name": "[oss-security] 20200601 CVE-2020-8555: Kubernetes: Half-Blind SSRF in kube-controller-manager",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2020/06/01/4"
},
{
"name": "FEDORA-2020-aeea04cd13",
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"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/"
},
{
"name": "https://security.netapp.com/advisory/ntap-20200724-0005/",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20200724-0005/"
},
{
"name": "[oss-security] 20210504 [kubernetes] CVE-2020-8562: Bypass of Kubernetes API Server proxy TOCTOU",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2021/05/04/8"
}
]
}
},
"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": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 4.0
}
},
"lastModifiedDate": "2022-11-16T03:39Z",
"publishedDate": "2020-06-05T17:15Z"
}
}
}
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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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