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{
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"data_type" : "CVE" ,
"data_format" : "MITRE" ,
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} ,
"CVE_data_meta" : {
"ID" : "CVE-2020-8555" ,
"ASSIGNER" : "security@kubernetes.io" ,
"DATE_PUBLIC" : "" ,
"TITLE" : "Kubernetes kube-controller-manager SSRF" ,
"AKA" : "" ,
"STATE" : "PUBLIC"
} ,
"source" : {
"defect" : [
"https://github.com/kubernetes/kubernetes/issues/91542"
] ,
"advisory" : "" ,
"discovery" : "EXTERNAL"
} ,
"affects" : {
"vendor" : {
"vendor_data" : [
{
"vendor_name" : "Kubernetes" ,
"product" : {
"product_data" : [
{
"product_name" : "Kubernetes" ,
"version" : {
"version_data" : [
{
"version_name" : "1.15" ,
"version_affected" : "<" ,
"version_value" : "1.15.12" ,
"platform" : ""
} ,
{
"version_name" : "1.16" ,
"version_affected" : "<" ,
"version_value" : "1.16.9" ,
"platform" : ""
} ,
{
"version_name" : "1.17" ,
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"version_value" : "1.17.5" ,
"platform" : ""
} ,
{
"version_name" : "" ,
"version_affected" : "" ,
"version_value" : "1.18.0" ,
"platform" : ""
} ,
{
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"version_value" : "1.1" ,
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} ,
{
"version_name" : "" ,
"version_affected" : "" ,
"version_value" : "1.2" ,
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} ,
{
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{
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"version_value" : "1.4" ,
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{
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"version_value" : "1.5" ,
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} ,
{
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"version_value" : "1.6" ,
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} ,
{
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"version_affected" : "" ,
"version_value" : "1.7" ,
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{
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{
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{
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"version_value" : "1.11" ,
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{
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"version_value" : "1.12" ,
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} ,
{
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"version_value" : "1.13" ,
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{
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"version_value" : "1.14" ,
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]
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}
}
]
}
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} ,
"problemtype" : {
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{
"description" : [
{
"lang" : "eng" ,
"value" : "CWE-918 Server-Side Request Forgery (SSRF)"
}
]
}
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]
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} ,
"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's host network (such as link-local or loopback services)."
}
]
} ,
"references" : {
"reference_data" : [
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{
"refsource" : "MLIST" ,
"name" : "[oss-security] 20200601 CVE-2020-8555: Kubernetes: Half-Blind SSRF in kube-controller-manager" ,
"url" : "http://www.openwall.com/lists/oss-security/2020/06/01/4"
} ,
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{
"refsource" : "MLIST" ,
"url" : "https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion" ,
"name" : ""
} ,
{
"refsource" : "CONFIRM" ,
"name" : "https://github.com/kubernetes/kubernetes/issues/91542" ,
"url" : "https://github.com/kubernetes/kubernetes/issues/91542"
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} ,
{
"refsource" : "FEDORA" ,
"name" : "FEDORA-2020-aeea04cd13" ,
"url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/"
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} ,
{
"refsource" : "CONFIRM" ,
"name" : "https://security.netapp.com/advisory/ntap-20200724-0005/" ,
"url" : "https://security.netapp.com/advisory/ntap-20200724-0005/"
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}
]
} ,
"configuration" : [ ] ,
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"version" : "3.1" ,
"attackVector" : "NETWORK" ,
"attackComplexity" : "HIGH" ,
"privilegesRequired" : "LOW" ,
"userInteraction" : "NONE" ,
"scope" : "CHANGED" ,
"confidentialityImpact" : "HIGH" ,
"integrityImpact" : "NONE" ,
"availabilityImpact" : "NONE" ,
"vectorString" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N" ,
"baseScore" : 6.3 ,
"baseSeverity" : "MEDIUM"
}
} ,
"exploit" : [ ] ,
"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."
}
] ,
"solution" : [ ] ,
"credit" : [
{
"lang" : "eng" ,
"value" : "Brice Augras from Groupe-Asten and Christophe Hauquiert from Nokia"
}
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]
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}