github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/cloud/policies/nifcloud/nas/no_public_ingress_nas_sgr.go (about)

     1  package nas
     2  
     3  import (
     4  	"github.com/khulnasoft-lab/defsec/internal/cidr"
     5  	"github.com/khulnasoft-lab/defsec/internal/rules"
     6  	"github.com/khulnasoft-lab/defsec/pkg/providers"
     7  	"github.com/khulnasoft-lab/defsec/pkg/scan"
     8  	"github.com/khulnasoft-lab/defsec/pkg/severity"
     9  	"github.com/khulnasoft-lab/defsec/pkg/state"
    10  )
    11  
    12  var CheckNoPublicIngressNASSgr = rules.Register(
    13  	scan.Rule{
    14  		AVDID:       "AVD-NIF-0014",
    15  		Aliases:     []string{"nifcloud-nas-no-public-ingress-nas-sgr"},
    16  		Provider:    providers.NifcloudProvider,
    17  		Service:     "nas",
    18  		ShortCode:   "no-public-ingress-nas-sgr",
    19  		Summary:     "An ingress nas security group rule allows traffic from /0.",
    20  		Impact:      "Your port exposed to the internet",
    21  		Resolution:  "Set a more restrictive cidr range",
    22  		Explanation: `Opening up ports to the public internet is generally to be avoided. You should restrict access to IP addresses or ranges that explicitly require it where possible.`,
    23  		Links: []string{
    24  			"https://pfs.nifcloud.com/api/nas/AuthorizeNASSecurityGroupIngress.htm",
    25  		},
    26  		Terraform: &scan.EngineMetadata{
    27  			GoodExamples:        terraformNoPublicIngressNASSgrGoodExamples,
    28  			BadExamples:         terraformNoPublicIngressNASSgrBadExamples,
    29  			Links:               terraformNoPublicIngressNASSgrLinks,
    30  			RemediationMarkdown: terraformNoPublicIngressNASSgrRemediationMarkdown,
    31  		},
    32  		Severity: severity.Critical,
    33  	},
    34  	func(s *state.State) (results scan.Results) {
    35  		for _, group := range s.Nifcloud.NAS.NASSecurityGroups {
    36  			for _, rule := range group.CIDRs {
    37  				if cidr.IsPublic(rule.Value()) && cidr.CountAddresses(rule.Value()) > 1 {
    38  					results.Add(
    39  						"NAS Security group rule allows ingress from public internet.",
    40  						rule,
    41  					)
    42  				} else {
    43  					results.AddPassed(&group)
    44  				}
    45  			}
    46  		}
    47  		return
    48  	},
    49  )