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• Variables

Variables

var CheckNoPublicEgress = rules.Register(
	rules.Rule{
		AVDID:       "AVD-OPNSTK-0004",
		Provider:    providers.OpenStackProvider,
		Service:     "networking",
		ShortCode:   "no-public-egress",
		Summary:     "A security group rule allows egress traffic to multiple public addresses",
		Impact:      "Potential exfiltration of data to the public internet",
		Resolution:  "Employ more restrictive security group rules",
		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.`,
		Links:       []string{},
		Terraform: &rules.EngineMetadata{
			GoodExamples:        terraformNoPublicEgressGoodExamples,
			BadExamples:         terraformNoPublicEgressBadExamples,
			Links:               terraformNoPublicEgressLinks,
			RemediationMarkdown: terraformNoPublicEgressRemediationMarkdown,
		},
		Severity: severity.Medium,
	},
	func(s *state.State) (results rules.Results) {
		for _, group := range s.OpenStack.Networking.SecurityGroups {
			for _, rule := range group.Rules {
				if rule.IsUnmanaged() || rule.IsIngress.IsTrue() {
					continue
				}
				if cidr.IsPublic(rule.CIDR.Value()) && cidr.CountAddresses(rule.CIDR.Value()) > 1 {
					results.Add(
						"Security group rule allows egress to multiple public addresses.",
						rule.CIDR,
					)
				} else {
					results.AddPassed(rule)
				}
			}
		}
		return
	},
)

var CheckNoPublicIngress = rules.Register(
	rules.Rule{
		AVDID:       "AVD-OPNSTK-0003",
		Provider:    providers.OpenStackProvider,
		Service:     "networking",
		ShortCode:   "no-public-ingress",
		Summary:     "A security group rule allows ingress traffic from multiple public addresses",
		Impact:      "Exposure of infrastructure to the public internet",
		Resolution:  "Employ more restrictive security group rules",
		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.`,
		Links:       []string{},
		Terraform: &rules.EngineMetadata{
			GoodExamples:        terraformNoPublicIngressGoodExamples,
			BadExamples:         terraformNoPublicIngressBadExamples,
			Links:               terraformNoPublicIngressLinks,
			RemediationMarkdown: terraformNoPublicIngressRemediationMarkdown,
		},
		Severity: severity.Medium,
	},
	func(s *state.State) (results rules.Results) {
		for _, group := range s.OpenStack.Networking.SecurityGroups {
			for _, rule := range group.Rules {
				if rule.IsUnmanaged() || rule.IsIngress.IsFalse() {
					continue
				}
				if cidr.IsPublic(rule.CIDR.Value()) && cidr.CountAddresses(rule.CIDR.Value()) > 1 {
					results.Add(
						"Security group rule allows ingress from multiple public addresses.",
						rule.CIDR,
					)
				} else {
					results.AddPassed(rule)
				}
			}
		}
		return
	},
)

var CheckSecurityGroupHasDescription = rules.Register(
	rules.Rule{
		AVDID:       "AVD-OPNSTK-0005",
		Provider:    providers.OpenStackProvider,
		Service:     "networking",
		ShortCode:   "describe-security-group",
		Summary:     "Missing description for security group.",
		Impact:      "Auditing capability and awareness limited.",
		Resolution:  "Add descriptions for all security groups",
		Explanation: `Security groups should include a description for auditing purposes. Simplifies auditing, debugging, and managing security groups.`,
		Links:       []string{},
		Terraform: &rules.EngineMetadata{
			GoodExamples:        terraformSecurityGroupHasDescriptionGoodExamples,
			BadExamples:         terraformSecurityGroupHasDescriptionBadExamples,
			Links:               terraformSecurityGroupHasDescriptionLinks,
			RemediationMarkdown: terraformSecurityGroupHasDescriptionRemediationMarkdown,
		},
		Severity: severity.Medium,
	},
	func(s *state.State) (results rules.Results) {
		for _, group := range s.OpenStack.Networking.SecurityGroups {
			if group.IsUnmanaged() {
				continue
			}
			if group.Description.IsEmpty() {
				results.Add(
					"Security group rule allows egress to multiple public addresses.",
					group.Description,
				)
			} else {
				results.AddPassed(group)
			}
		}
		return
	},
)