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package v1
// TLSSecurityProfile defines the schema for a TLS security profile. This object
// is used by operators to apply TLS security settings to operands.
// +union
type TLSSecurityProfile struct {
// type is one of Old, Intermediate, Modern or Custom. Custom provides
// the ability to specify individual TLS security profile parameters.
// Old, Intermediate and Modern are TLS security profiles based on:
//
// https://wiki.mozilla.org/Security/Server_Side_TLS#Recommended_configurations
//
// The profiles are intent based, so they may change over time as new ciphers are developed and existing ciphers
// are found to be insecure. Depending on precisely which ciphers are available to a process, the list may be
// reduced.
//
// Note that the Modern profile is currently not supported because it is not
// yet well adopted by common software libraries.
//
// +unionDiscriminator
// +optional
Type TLSProfileType `json:"type"`
// old is a TLS security profile based on:
//
// https://wiki.mozilla.org/Security/Server_Side_TLS#Old_backward_compatibility
//
// and looks like this (yaml):
//
// ciphers:
// - TLS_AES_128_GCM_SHA256
// - TLS_AES_256_GCM_SHA384
// - TLS_CHACHA20_POLY1305_SHA256
// - ECDHE-ECDSA-AES128-GCM-SHA256
// - ECDHE-RSA-AES128-GCM-SHA256
// - ECDHE-ECDSA-AES256-GCM-SHA384
// - ECDHE-RSA-AES256-GCM-SHA384
// - ECDHE-ECDSA-CHACHA20-POLY1305
// - ECDHE-RSA-CHACHA20-POLY1305
// - DHE-RSA-AES128-GCM-SHA256
// - DHE-RSA-AES256-GCM-SHA384
// - DHE-RSA-CHACHA20-POLY1305
// - ECDHE-ECDSA-AES128-SHA256
// - ECDHE-RSA-AES128-SHA256
// - ECDHE-ECDSA-AES128-SHA
// - ECDHE-RSA-AES128-SHA
// - ECDHE-ECDSA-AES256-SHA384
// - ECDHE-RSA-AES256-SHA384
// - ECDHE-ECDSA-AES256-SHA
// - ECDHE-RSA-AES256-SHA
// - DHE-RSA-AES128-SHA256
// - DHE-RSA-AES256-SHA256
// - AES128-GCM-SHA256
// - AES256-GCM-SHA384
// - AES128-SHA256
// - AES256-SHA256
// - AES128-SHA
// - AES256-SHA
// - DES-CBC3-SHA
// minTLSVersion: TLSv1.0
//
// +optional
// +nullable
Old *OldTLSProfile `json:"old,omitempty"`
// intermediate is a TLS security profile based on:
//
// https://wiki.mozilla.org/Security/Server_Side_TLS#Intermediate_compatibility_.28recommended.29
//
// and looks like this (yaml):
//
// ciphers:
// - TLS_AES_128_GCM_SHA256
// - TLS_AES_256_GCM_SHA384
// - TLS_CHACHA20_POLY1305_SHA256
// - ECDHE-ECDSA-AES128-GCM-SHA256
// - ECDHE-RSA-AES128-GCM-SHA256
// - ECDHE-ECDSA-AES256-GCM-SHA384
// - ECDHE-RSA-AES256-GCM-SHA384
// - ECDHE-ECDSA-CHACHA20-POLY1305
// - ECDHE-RSA-CHACHA20-POLY1305
// - DHE-RSA-AES128-GCM-SHA256
// - DHE-RSA-AES256-GCM-SHA384
// minTLSVersion: TLSv1.2
//
// +optional
// +nullable
Intermediate *IntermediateTLSProfile `json:"intermediate,omitempty"`
// modern is a TLS security profile based on:
//
// https://wiki.mozilla.org/Security/Server_Side_TLS#Modern_compatibility
//
// and looks like this (yaml):
//
// ciphers:
// - TLS_AES_128_GCM_SHA256
// - TLS_AES_256_GCM_SHA384
// - TLS_CHACHA20_POLY1305_SHA256
// minTLSVersion: TLSv1.3
//
// NOTE: Currently unsupported.
//
// +optional
// +nullable
Modern *ModernTLSProfile `json:"modern,omitempty"`
// custom is a user-defined TLS security profile. Be extremely careful using a custom
// profile as invalid configurations can be catastrophic. An example custom profile
// looks like this:
//
// ciphers:
// - ECDHE-ECDSA-CHACHA20-POLY1305
// - ECDHE-RSA-CHACHA20-POLY1305
// - ECDHE-RSA-AES128-GCM-SHA256
// - ECDHE-ECDSA-AES128-GCM-SHA256
// minTLSVersion: TLSv1.1
//
// +optional
// +nullable
Custom *CustomTLSProfile `json:"custom,omitempty"`
}
// OldTLSProfile is a TLS security profile based on:
// https://wiki.mozilla.org/Security/Server_Side_TLS#Old_backward_compatibility
type OldTLSProfile struct{}
// IntermediateTLSProfile is a TLS security profile based on:
// https://wiki.mozilla.org/Security/Server_Side_TLS#Intermediate_compatibility_.28default.29
type IntermediateTLSProfile struct{}
// ModernTLSProfile is a TLS security profile based on:
// https://wiki.mozilla.org/Security/Server_Side_TLS#Modern_compatibility
type ModernTLSProfile struct{}
// CustomTLSProfile is a user-defined TLS security profile. Be extremely careful
// using a custom TLS profile as invalid configurations can be catastrophic.
type CustomTLSProfile struct {
TLSProfileSpec `json:",inline"`
}
// TLSProfileType defines a TLS security profile type.
type TLSProfileType string
const (
// Old is a TLS security profile based on:
// https://wiki.mozilla.org/Security/Server_Side_TLS#Old_backward_compatibility
TLSProfileOldType TLSProfileType = "Old"
// Intermediate is a TLS security profile based on:
// https://wiki.mozilla.org/Security/Server_Side_TLS#Intermediate_compatibility_.28default.29
TLSProfileIntermediateType TLSProfileType = "Intermediate"
// Modern is a TLS security profile based on:
// https://wiki.mozilla.org/Security/Server_Side_TLS#Modern_compatibility
TLSProfileModernType TLSProfileType = "Modern"
// Custom is a TLS security profile that allows for user-defined parameters.
TLSProfileCustomType TLSProfileType = "Custom"
)
// TLSProfileSpec is the desired behavior of a TLSSecurityProfile.
type TLSProfileSpec struct {
// ciphers is used to specify the cipher algorithms that are negotiated
// during the TLS handshake. Operators may remove entries their operands
// do not support. For example, to use DES-CBC3-SHA (yaml):
//
// ciphers:
// - DES-CBC3-SHA
//
Ciphers []string `json:"ciphers"`
// minTLSVersion is used to specify the minimal version of the TLS protocol
// that is negotiated during the TLS handshake. For example, to use TLS
// versions 1.1, 1.2 and 1.3 (yaml):
//
// minTLSVersion: TLSv1.1
//
// NOTE: currently the highest minTLSVersion allowed is VersionTLS12
//
MinTLSVersion TLSProtocolVersion `json:"minTLSVersion"`
}
// TLSProtocolVersion is a way to specify the protocol version used for TLS connections.
// Protocol versions are based on the following most common TLS configurations:
//
// https://ssl-config.mozilla.org/
//
// Note that SSLv3.0 is not a supported protocol version due to well known
// vulnerabilities such as POODLE: https://en.wikipedia.org/wiki/POODLE
type TLSProtocolVersion string
const (
// VersionTLSv10 is version 1.0 of the TLS security protocol.
VersionTLS10 TLSProtocolVersion = "VersionTLS10"
// VersionTLSv11 is version 1.1 of the TLS security protocol.
VersionTLS11 TLSProtocolVersion = "VersionTLS11"
// VersionTLSv12 is version 1.2 of the TLS security protocol.
VersionTLS12 TLSProtocolVersion = "VersionTLS12"
// VersionTLSv13 is version 1.3 of the TLS security protocol.
VersionTLS13 TLSProtocolVersion = "VersionTLS13"
)
// TLSProfiles Contains a map of TLSProfileType names to TLSProfileSpec.
//
// NOTE: The caller needs to make sure to check that these constants are valid for their binary. Not all
// entries map to values for all binaries. In the case of ties, the kube-apiserver wins. Do not fail,
// just be sure to whitelist only and everything will be ok.
var TLSProfiles = map[TLSProfileType]*TLSProfileSpec{
TLSProfileOldType: {
Ciphers: []string{
"TLS_AES_128_GCM_SHA256",
"TLS_AES_256_GCM_SHA384",
"TLS_CHACHA20_POLY1305_SHA256",
"ECDHE-ECDSA-AES128-GCM-SHA256",
"ECDHE-RSA-AES128-GCM-SHA256",
"ECDHE-ECDSA-AES256-GCM-SHA384",
"ECDHE-RSA-AES256-GCM-SHA384",
"ECDHE-ECDSA-CHACHA20-POLY1305",
"ECDHE-RSA-CHACHA20-POLY1305",
"DHE-RSA-AES128-GCM-SHA256",
"DHE-RSA-AES256-GCM-SHA384",
"DHE-RSA-CHACHA20-POLY1305",
"ECDHE-ECDSA-AES128-SHA256",
"ECDHE-RSA-AES128-SHA256",
"ECDHE-ECDSA-AES128-SHA",
"ECDHE-RSA-AES128-SHA",
"ECDHE-ECDSA-AES256-SHA384",
"ECDHE-RSA-AES256-SHA384",
"ECDHE-ECDSA-AES256-SHA",
"ECDHE-RSA-AES256-SHA",
"DHE-RSA-AES128-SHA256",
"DHE-RSA-AES256-SHA256",
"AES128-GCM-SHA256",
"AES256-GCM-SHA384",
"AES128-SHA256",
"AES256-SHA256",
"AES128-SHA",
"AES256-SHA",
"DES-CBC3-SHA",
},
MinTLSVersion: VersionTLS10,
},
TLSProfileIntermediateType: {
Ciphers: []string{
"TLS_AES_128_GCM_SHA256",
"TLS_AES_256_GCM_SHA384",
"TLS_CHACHA20_POLY1305_SHA256",
"ECDHE-ECDSA-AES128-GCM-SHA256",
"ECDHE-RSA-AES128-GCM-SHA256",
"ECDHE-ECDSA-AES256-GCM-SHA384",
"ECDHE-RSA-AES256-GCM-SHA384",
"ECDHE-ECDSA-CHACHA20-POLY1305",
"ECDHE-RSA-CHACHA20-POLY1305",
"DHE-RSA-AES128-GCM-SHA256",
"DHE-RSA-AES256-GCM-SHA384",
},
MinTLSVersion: VersionTLS12,
},
TLSProfileModernType: {
Ciphers: []string{
"TLS_AES_128_GCM_SHA256",
"TLS_AES_256_GCM_SHA384",
"TLS_CHACHA20_POLY1305_SHA256",
},
MinTLSVersion: VersionTLS13,
},
}
|
