Sensitive Port Is Exposed To Entire Network
- Query id: 381c3f2a-ef6f-4eff-99f7-b169cda3422c
- Query name: Sensitive Port Is Exposed To Entire Network
- Platform: Terraform
- Severity: High
- Category: Networking and Firewall
- CWE: 200
- URL: Github
Description¶
A sensitive port, such as port 23 or port 110, is open for the whole network in either TCP or UDP protocol
Documentation
Code samples¶
Code samples with security vulnerabilities¶
Positive test num. 1 - json file
{
"format_version": "0.2",
"terraform_version": "1.0.5",
"planned_values": {
"root_module": {
"resources": [
{
"address": "aws_security_group.invalid",
"mode": "managed",
"type": "aws_security_group",
"name": "invalid",
"provider_name": "registry.terraform.io/hashicorp/aws",
"schema_version": 1,
"values": {
"description": "invalid",
"egress": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": "",
"from_port": 0,
"ipv6_cidr_blocks": [
"::/0"
],
"prefix_list_ids": [],
"protocol": "-1",
"security_groups": [],
"self": false,
"to_port": 0
}
],
"ingress": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": "invalid",
"from_port": 443,
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"protocol": "tcp",
"security_groups": [],
"self": false,
"to_port": 443
}
],
"name": "invalid",
"revoke_rules_on_delete": false,
"tags": {
"Name": "invalid"
},
"tags_all": {
"Name": "invalid"
},
"timeouts": null
},
"sensitive_values": {
"egress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [
false
],
"prefix_list_ids": [],
"security_groups": []
}
],
"ingress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"security_groups": []
}
],
"tags": {},
"tags_all": {}
}
}
]
}
},
"resource_changes": [
{
"address": "aws_security_group.invalid",
"mode": "managed",
"type": "aws_security_group",
"name": "invalid",
"provider_name": "registry.terraform.io/hashicorp/aws",
"change": {
"actions": [
"create"
],
"before": null,
"after": {
"description": "invalid",
"egress": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": "",
"from_port": 0,
"ipv6_cidr_blocks": [
"::/0"
],
"prefix_list_ids": [],
"protocol": "-1",
"security_groups": [],
"self": false,
"to_port": 0
}
],
"ingress": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": "invalid",
"from_port": 443,
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"protocol": "tcp",
"security_groups": [],
"self": false,
"to_port": 443
}
],
"name": "invalid",
"revoke_rules_on_delete": false,
"tags": {
"Name": "invalid"
},
"tags_all": {
"Name": "invalid"
},
"timeouts": null
},
"after_unknown": {
"arn": true,
"egress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [
false
],
"prefix_list_ids": [],
"security_groups": []
}
],
"id": true,
"ingress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"security_groups": []
}
],
"name_prefix": true,
"owner_id": true,
"tags": {},
"tags_all": {},
"vpc_id": true
},
"before_sensitive": false,
"after_sensitive": {
"egress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [
false
],
"prefix_list_ids": [],
"security_groups": []
}
],
"ingress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"security_groups": []
}
],
"tags": {},
"tags_all": {}
}
}
}
],
"configuration": {
"root_module": {
"resources": [
{
"address": "aws_security_group.invalid",
"mode": "managed",
"type": "aws_security_group",
"name": "invalid",
"provider_config_key": "aws",
"expressions": {
"description": {
"constant_value": "invalid"
},
"egress": {
"constant_value": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": null,
"from_port": 0,
"ipv6_cidr_blocks": [
"::/0"
],
"prefix_list_ids": null,
"protocol": "-1",
"security_groups": null,
"self": null,
"to_port": 0
}
]
},
"ingress": {
"constant_value": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": "invalid",
"from_port": 443,
"ipv6_cidr_blocks": null,
"prefix_list_ids": null,
"protocol": "tcp",
"security_groups": null,
"self": null,
"to_port": 443
}
]
},
"name": {
"constant_value": "invalid"
},
"tags": {
"constant_value": {
"Name": "invalid"
}
},
"vpc_id": {
"references": [
"aws_vpc.vpc-a.id",
"aws_vpc.vpc-a"
]
}
},
"schema_version": 1
}
]
}
}
}
Positive test num. 2 - tf file
resource "aws_security_group" "positive1" {
name = "allow_tls1"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 2200
to_port = 2500
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}
resource "aws_security_group" "positive2" {
name = "allow_tls2"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 20
to_port = 60
protocol = "tcp"
cidr_blocks = ["/0"]
}
}
resource "aws_security_group" "positive3" {
name = "allow_tls3"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 5000
to_port = 6000
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}
resource "aws_security_group" "positive4" {
name = "allow_tls4"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 20
to_port = 22
protocol = "tcp"
cidr_blocks = ["/0"]
}
}
resource "aws_security_group" "positive5" {
name = "allow_tls5"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 445
to_port = 500
protocol = "udp"
cidr_blocks = ["1.1.1.1/1","0.0.0.0/0", "2.2.3.4/12"]
}
}
resource "aws_security_group" "positive6" {
name = "allow_tls6"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 135
to_port = 170
protocol = "udp"
cidr_blocks = ["10.68.0.0", "0.0.0.0/0"]
}
}
resource "aws_security_group" "positive7" {
name = "allow_tls7"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 2383
to_port = 2383
protocol = "udp"
cidr_blocks = ["/0", "1.2.3.4/12"]
}
}
resource "aws_security_group" "positive8" {
name = "allow_tls8"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["/0"]
}
}
Code samples without security vulnerabilities¶
Negative test num. 1 - json file
{
"format_version": "0.2",
"terraform_version": "1.0.5",
"planned_values": {
"root_module": {
"resources": [
{
"address": "aws_security_group.invalid",
"mode": "managed",
"type": "aws_security_group",
"name": "invalid",
"provider_name": "registry.terraform.io/hashicorp/aws",
"schema_version": 1,
"values": {
"description": "invalid",
"egress": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": "",
"from_port": 0,
"ipv6_cidr_blocks": [
"::/0"
],
"prefix_list_ids": [],
"protocol": "-1",
"security_groups": [],
"self": false,
"to_port": 0
}
],
"ingress": [
{
"cidr_blocks": [
"192.168.0.0/24"
],
"description": "invalid",
"from_port": 443,
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"protocol": "tcp",
"security_groups": [],
"self": false,
"to_port": 443
}
],
"name": "invalid",
"revoke_rules_on_delete": false,
"tags": {
"Name": "invalid"
},
"tags_all": {
"Name": "invalid"
},
"timeouts": null
},
"sensitive_values": {
"egress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [
false
],
"prefix_list_ids": [],
"security_groups": []
}
],
"ingress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"security_groups": []
}
],
"tags": {},
"tags_all": {}
}
}
]
}
},
"resource_changes": [
{
"address": "aws_security_group.invalid",
"mode": "managed",
"type": "aws_security_group",
"name": "invalid",
"provider_name": "registry.terraform.io/hashicorp/aws",
"change": {
"actions": [
"create"
],
"before": null,
"after": {
"description": "invalid",
"egress": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": "",
"from_port": 0,
"ipv6_cidr_blocks": [
"::/0"
],
"prefix_list_ids": [],
"protocol": "-1",
"security_groups": [],
"self": false,
"to_port": 0
}
],
"ingress": [
{
"cidr_blocks": [
"192.168.0.0/24"
],
"description": "invalid",
"from_port": 443,
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"protocol": "tcp",
"security_groups": [],
"self": false,
"to_port": 443
}
],
"name": "invalid",
"revoke_rules_on_delete": false,
"tags": {
"Name": "invalid"
},
"tags_all": {
"Name": "invalid"
},
"timeouts": null
},
"after_unknown": {
"arn": true,
"egress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [
false
],
"prefix_list_ids": [],
"security_groups": []
}
],
"id": true,
"ingress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"security_groups": []
}
],
"name_prefix": true,
"owner_id": true,
"tags": {},
"tags_all": {},
"vpc_id": true
},
"before_sensitive": false,
"after_sensitive": {
"egress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [
false
],
"prefix_list_ids": [],
"security_groups": []
}
],
"ingress": [
{
"cidr_blocks": [
false
],
"ipv6_cidr_blocks": [],
"prefix_list_ids": [],
"security_groups": []
}
],
"tags": {},
"tags_all": {}
}
}
}
],
"configuration": {
"root_module": {
"resources": [
{
"address": "aws_security_group.invalid",
"mode": "managed",
"type": "aws_security_group",
"name": "invalid",
"provider_config_key": "aws",
"expressions": {
"description": {
"constant_value": "invalid"
},
"egress": {
"constant_value": [
{
"cidr_blocks": [
"0.0.0.0/0"
],
"description": null,
"from_port": 0,
"ipv6_cidr_blocks": [
"::/0"
],
"prefix_list_ids": null,
"protocol": "-1",
"security_groups": null,
"self": null,
"to_port": 0
}
]
},
"ingress": {
"constant_value": [
{
"cidr_blocks": [
"192.168.0.0/24"
],
"description": "invalid",
"from_port": 443,
"ipv6_cidr_blocks": null,
"prefix_list_ids": null,
"protocol": "tcp",
"security_groups": null,
"self": null,
"to_port": 443
}
]
},
"name": {
"constant_value": "invalid"
},
"tags": {
"constant_value": {
"Name": "invalid"
}
},
"vpc_id": {
"references": [
"aws_vpc.vpc-a.id",
"aws_vpc.vpc-a"
]
}
},
"schema_version": 1
}
]
}
}
}
Negative test num. 2 - tf file
resource "aws_security_group" "negative1" {
name = "allow_tls1"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 2383
to_port = 2383
protocol = "tcp"
cidr_blocks = [aws_vpc.main.cidr_block]
}
}
resource "aws_security_group" "negative2" {
name = "allow_tls2"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 2384
to_port = 2386
protocol = "tcp"
cidr_blocks = ["/0"]
}
}
resource "aws_security_group" "negative3" {
name = "allow_tls3"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 25
to_port = 2500
protocol = "tcp"
cidr_blocks = ["1.2.3.4/5"]
}
}
resource "aws_security_group" "negative4" {
name = "allow_tls4"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 25
to_port = 2500
protocol = "tcp"
cidr_blocks = ["1.2.3.4/5"]
}
}
resource "aws_security_group" "negative5" {
name = "allow_tls5"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 25
to_port = 2500
protocol = "udp"
cidr_blocks = ["1.2.3.4/5","0.0.0.0/12"]
}
}
resource "aws_security_group" "negative6" {
name = "allow_tls6"
description = "Allow TLS inbound traffic"
vpc_id = aws_vpc.main.id
ingress {
description = "TLS from VPC"
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["1.2.3.4/5","0.0.0.0/12"]
}
}