Checks/Aws/Test-Ec2SecuritygroupAllowWideOpenPublicIpv4.ps1

function Test-Ec2SecuritygroupAllowWideOpenPublicIpv4 {
    <#
    .SYNOPSIS
        Security group has no ingress or egress rules with public IPv4 CIDR ranges from /1 to /23

    .DESCRIPTION
        **EC2 security groups** with rules that permit non-RFC1918 IPv4 ranges wider than `/24` are identified across both **ingress** and **egress**.
        
        The focus is on public CIDRs (`/1`-`/23`) that broadly expose sources or destinations, not on private networks.

    .PARAMETER Check
        CIEMCheck object containing check metadata.
    #>

    [CmdletBinding()]
    [OutputType([PSCustomObject[]])]
    param(
        [Parameter(Mandatory)]
        [CIEMCheck]$Check
    )

    $ErrorActionPreference = 'Stop'

    # TODO: Implement check logic based on Prowler check: ec2_securitygroup_allow_wide_open_public_ipv4

    [CIEMScanResult]::Create($Check, 'MANUAL', 'This check requires manual implementation. See Prowler check ec2_securitygroup_allow_wide_open_public_ipv4 for reference.', 'N/A', 'ec2 Resources')
}