Public Security Group Rule Unknown Port
- Query id: dd706080-b7a8-47dc-81fb-3e8184430ec0
- Query name: Public Security Group Rule Unknown Port
- Platform: Terraform
- Severity: High
- Category: Networking and Firewall
- CWE: 284
- URL: Github
Description¶
A unknown port, such as port 24 or port 111, is open to the public in either TCP or UDP or ALL protocol/protocols mentioned
Documentation
Code samples¶
Code samples with security vulnerabilities¶
Positive test num. 1 - tf file
resource "alicloud_security_group" "default" {
name = "default"
}
resource "alicloud_security_group_rule" "allow_all_tcp" {
type = "ingress"
ip_protocol = "tcp"
nic_type = "internet"
policy = "accept"
port_range = "54/60"
priority = 1
security_group_id = alicloud_security_group.default.id
cidr_ip = "0.0.0.0/0"
}
Positive test num. 2 - tf file
resource "alicloud_security_group" "default" {
name = "default"
}
resource "alicloud_security_group_rule" "allow_all_tcp" {
type = "ingress"
ip_protocol = "all"
nic_type = "internet"
policy = "accept"
port_range = "-1/-1"
priority = 1
security_group_id = alicloud_security_group.default.id
cidr_ip = "0.0.0.0/0"
}
Code samples without security vulnerabilities¶
Negative test num. 1 - tf file
resource "alicloud_security_group" "default" {
name = "default"
}
resource "alicloud_security_group_rule" "allow_all_tcp" {
type = "ingress"
ip_protocol = "tcp"
nic_type = "internet"
policy = "accept"
port_range = "1/65535"
priority = 1
security_group_id = alicloud_security_group.default.id
cidr_ip = "10.159.6.18/12"
}
Negative test num. 2 - tf file
resource "alicloud_security_group" "default" {
name = "default"
}
resource "alicloud_security_group_rule" "allow_all_tcp" {
type = "ingress"
ip_protocol = "icmp"
nic_type = "internet"
policy = "accept"
port_range = "-1/-1"
priority = 1
security_group_id = alicloud_security_group.default.id
cidr_ip = "10.159.6.18/12"
}