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https://github.com/ghndrx/prowler.git
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4961498562
Added a third parameter to checks textFail and textPass to identify resource name in finding.
39 lines
2.1 KiB
Bash
39 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# Prowler - the handy cloud security tool (c) by Toni de la Fuente
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#
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# This Prowler check is licensed under a
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# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
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#
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# You should have received a copy of the license along with this
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# work. If not, see <http://creativecommons.org/licenses/by-nc-sa/4.0/>.
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CHECK_ID_check41="4.1"
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CHECK_TITLE_check41="[check41] Ensure no security groups allow ingress from 0.0.0.0/0 or ::/0 to port 22 (Scored)"
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CHECK_SCORED_check41="SCORED"
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CHECK_TYPE_check41="LEVEL2"
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CHECK_SEVERITY_check41="High"
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CHECK_ASFF_TYPE_check41="Software and Configuration Checks/Industry and Regulatory Standards/CIS AWS Foundations Benchmark"
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CHECK_ASFF_RESOURCE_TYPE_check41="AwsEc2SecurityGroup"
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CHECK_ALTERNATE_check401="check41"
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CHECK_ASFF_COMPLIANCE_TYPE_check41="ens-mp.com.4.aws.sg.4"
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CHECK_SERVICENAME_check41="ec2"
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CHECK_RISK_check41='Even having a perimeter firewall; having security groups open allows any user or malware with vpc access to scan for well known and sensitive ports and gain access to instance.'
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CHECK_REMEDIATION_check41='Apply Zero Trust approach. Implement a process to scan and remediate unrestricted or overly permissive security groups. Recommended best practices is to narrow the definition for the minimum ports required.'
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CHECK_DOC_check41='https://docs.aws.amazon.com/eks/latest/userguide/sec-group-reqs.html'
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CHECK_CAF_EPIC_check41='Infrastructure Security'
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check41(){
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# "Ensure no security groups allow ingress from 0.0.0.0/0 or ::/0 to port 22 (Scored)"
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for regx in $REGIONS; do
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SG_LIST=$($AWSCLI ec2 describe-security-groups --query 'SecurityGroups[?length(IpPermissions[?((FromPort==null && ToPort==null) || (FromPort<=`22` && ToPort>=`22`)) && (contains(IpRanges[].CidrIp, `0.0.0.0/0`) || contains(Ipv6Ranges[].CidrIpv6, `::/0`))]) > `0`].{GroupId:GroupId}' $PROFILE_OPT --region $regx --output text)
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if [[ $SG_LIST ]];then
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for SG in $SG_LIST;do
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textFail "Found Security Group: $SG open to 0.0.0.0/0 in Region $regx" "$regx" "$SG"
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done
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else
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textPass "No Security Groups found in $regx with port 22 TCP open to 0.0.0.0/0" "$regx"
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fi
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done
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}
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