github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/cloud/policies/google/dns/no_rsa_sha1.go (about)

     1  package dns
     2  
     3  import (
     4  	"github.com/khulnasoft-lab/defsec/internal/rules"
     5  	"github.com/khulnasoft-lab/defsec/pkg/providers"
     6  	"github.com/khulnasoft-lab/defsec/pkg/scan"
     7  	"github.com/khulnasoft-lab/defsec/pkg/severity"
     8  	"github.com/khulnasoft-lab/defsec/pkg/state"
     9  )
    10  
    11  var CheckNoRsaSha1 = rules.Register(
    12  	scan.Rule{
    13  		AVDID:       "AVD-GCP-0012",
    14  		Provider:    providers.GoogleProvider,
    15  		Service:     "dns",
    16  		ShortCode:   "no-rsa-sha1",
    17  		Summary:     "Zone signing should not use RSA SHA1",
    18  		Impact:      "Less secure encryption algorithm than others available",
    19  		Resolution:  "Use RSA SHA512",
    20  		Explanation: `RSA SHA1 is a weaker algorithm than SHA2-based algorithms such as RSA SHA256/512`,
    21  		Links:       []string{},
    22  		Terraform: &scan.EngineMetadata{
    23  			GoodExamples:        terraformNoRsaSha1GoodExamples,
    24  			BadExamples:         terraformNoRsaSha1BadExamples,
    25  			Links:               terraformNoRsaSha1Links,
    26  			RemediationMarkdown: terraformNoRsaSha1RemediationMarkdown,
    27  		},
    28  		Severity: severity.Medium,
    29  	},
    30  	func(s *state.State) (results scan.Results) {
    31  		for _, zone := range s.Google.DNS.ManagedZones {
    32  			if zone.Metadata.IsUnmanaged() {
    33  				continue
    34  			}
    35  			if zone.DNSSec.DefaultKeySpecs.KeySigningKey.Algorithm.EqualTo("rsasha1") {
    36  				results.Add(
    37  					"Zone KSK uses RSA SHA1 for signing.",
    38  					zone.DNSSec.DefaultKeySpecs.KeySigningKey.Algorithm,
    39  				)
    40  			} else if zone.DNSSec.DefaultKeySpecs.ZoneSigningKey.Algorithm.EqualTo("rsasha1") {
    41  				results.Add(
    42  					"Zone ZSK uses RSA SHA1 for signing.",
    43  					zone.DNSSec.DefaultKeySpecs.ZoneSigningKey.Algorithm,
    44  				)
    45  			} else {
    46  				results.AddPassed(&zone)
    47  			}
    48  		}
    49  		return
    50  	},
    51  )