Ensure no VPC access control lists allow ingress from 0.0.0.0/0 to port 3389

中级别 1人工审核ibmcloud

说明

VPC access control lists filter all incoming and outgoing traffic in IBM Cloud VPC. An ACL is a built-in, virtual firewall where ACL rules control traffic to and from the subnets, rather than to and from the virtual servers. It is recommended that no ACL allows unrestricted ingress access to port 3389. Removing uncontrolled connectivity to remote console services, such as RDP, reduces a server's exposure to risk.

检查方式

审计方法: 人工审核

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Perform the following tasks to determine if the account is configured as prescribed: Using Console: 1. Login to the IBM Cloud Portal at https://cloud.ibm.com. 2. At the Menu icon, select Infrastructure, Network, Access Control Lists. 3. For each access control list, perform the following: a. Select the access control list name. b. Ensure no Inbound Rule exists that has a port range that includes port 3389 and has a Source of 0.0.0.0/0. Note that a port range value of ANY or a port range that includes port 3389, e.g. 3300-3400, are inclusive of port 3389.

修复方式

修复方法: 操作指南或基础设施补丁

1. Login to the IBM Cloud Portal at https://cloud.ibm.com. 2. At the Menu icon, select Infrastructure, Network, Access Control Lists. 3. For the ACL that need to be remediated, perform the following: a. Select the access control list name. b. Identify the Inbound rule to be removed. c. Using the Options icon, select Delete.

属性

操作系统: 任意
标签: access-controlcloudibmcloudnetwork
参考: CIS IBM Cloud Foundations Benchmark v2.0.0 - 6.2.5 Ensure no VPC access control lists allow ingress from 0.0.0.0/0 to port 3389