github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/cloud/policies/azure/compute/disable_password_authentication.go (about)

     1  package compute
     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 CheckDisablePasswordAuthentication = rules.Register(
    12  	scan.Rule{
    13  		AVDID:       "AVD-AZU-0039",
    14  		Provider:    providers.AzureProvider,
    15  		Service:     "compute",
    16  		ShortCode:   "disable-password-authentication",
    17  		Summary:     "Password authentication should be disabled on Azure virtual machines",
    18  		Impact:      "Using password authentication is less secure that ssh keys may result in compromised servers",
    19  		Resolution:  "Use ssh authentication for virtual machines",
    20  		Explanation: `Access to virtual machines should be authenticated using SSH keys. Removing the option of password authentication enforces more secure methods while removing the risks inherent with passwords.`,
    21  		Links:       []string{},
    22  		Terraform: &scan.EngineMetadata{
    23  			GoodExamples:        terraformDisablePasswordAuthenticationGoodExamples,
    24  			BadExamples:         terraformDisablePasswordAuthenticationBadExamples,
    25  			Links:               terraformDisablePasswordAuthenticationLinks,
    26  			RemediationMarkdown: terraformDisablePasswordAuthenticationRemediationMarkdown,
    27  		},
    28  		Severity: severity.High,
    29  	},
    30  	func(s *state.State) (results scan.Results) {
    31  		for _, vm := range s.Azure.Compute.LinuxVirtualMachines {
    32  			if vm.Metadata.IsUnmanaged() {
    33  				continue
    34  			}
    35  			if vm.OSProfileLinuxConfig.DisablePasswordAuthentication.IsFalse() {
    36  				results.Add(
    37  					"Linux virtual machine allows password authentication.",
    38  					vm.OSProfileLinuxConfig.DisablePasswordAuthentication,
    39  				)
    40  			} else {
    41  				results.AddPassed(&vm)
    42  			}
    43  		}
    44  		return
    45  	},
    46  )