github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/cloud/policies/aws/cloudtrail/enable_log_validation.go (about)

     1  package cloudtrail
     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 CheckEnableLogValidation = rules.Register(
    12  	scan.Rule{
    13  		AVDID:       "AVD-AWS-0016",
    14  		Provider:    providers.AWSProvider,
    15  		Service:     "cloudtrail",
    16  		ShortCode:   "enable-log-validation",
    17  		Summary:     "Cloudtrail log validation should be enabled to prevent tampering of log data",
    18  		Impact:      "Illicit activity could be removed from the logs",
    19  		Resolution:  "Turn on log validation for Cloudtrail",
    20  		Explanation: `Log validation should be activated on Cloudtrail logs to prevent the tampering of the underlying data in the S3 bucket. It is feasible that a rogue actor compromising an AWS account might want to modify the log data to remove trace of their actions.`,
    21  		Links: []string{
    22  			"https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-log-file-validation-intro.html",
    23  		},
    24  		Terraform: &scan.EngineMetadata{
    25  			GoodExamples:        terraformEnableLogValidationGoodExamples,
    26  			BadExamples:         terraformEnableLogValidationBadExamples,
    27  			Links:               terraformEnableLogValidationLinks,
    28  			RemediationMarkdown: terraformEnableLogValidationRemediationMarkdown,
    29  		},
    30  		CloudFormation: &scan.EngineMetadata{
    31  			GoodExamples:        cloudFormationEnableLogValidationGoodExamples,
    32  			BadExamples:         cloudFormationEnableLogValidationBadExamples,
    33  			Links:               cloudFormationEnableLogValidationLinks,
    34  			RemediationMarkdown: cloudFormationEnableLogValidationRemediationMarkdown,
    35  		},
    36  		Severity: severity.High,
    37  	},
    38  	func(s *state.State) (results scan.Results) {
    39  		for _, trail := range s.AWS.CloudTrail.Trails {
    40  			if trail.EnableLogFileValidation.IsFalse() {
    41  				results.Add(
    42  					"Trail does not have log validation enabled.",
    43  					trail.EnableLogFileValidation,
    44  				)
    45  			} else {
    46  				results.AddPassed(&trail)
    47  			}
    48  		}
    49  		return
    50  	},
    51  )