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https://github.com/prowler-cloud/prowler.git
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52 lines
2.7 KiB
Bash
52 lines
2.7 KiB
Bash
#!/usr/bin/env bash
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# Prowler - the handy cloud security tool (copyright 2018) by Toni de la Fuente
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy
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# of the License at http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software distributed
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# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations under the License.
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CHECK_ID_extra74="7.4"
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CHECK_TITLE_extra74="[extra74] Ensure there are no Security Groups without ingress filtering being used"
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CHECK_SCORED_extra74="NOT_SCORED"
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CHECK_CIS_LEVEL_extra74="EXTRA"
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CHECK_SEVERITY_extra74="High"
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CHECK_ASFF_RESOURCE_TYPE_extra74="AwsEc2SecurityGroup"
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CHECK_ALTERNATE_extra704="extra74"
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CHECK_ALTERNATE_check74="extra74"
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CHECK_ALTERNATE_check704="extra74"
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CHECK_ASFF_COMPLIANCE_TYPE_extra74="ens-mp.com.4.aws.sg.2"
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CHECK_SERVICENAME_extra74="ec2"
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CHECK_RISK_extra74='If Security groups are not filtering traffic appropriately the attack surface is increased.'
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CHECK_REMEDIATION_extra74=' You can grant access to a specific CIDR range; or to another security group in your VPC or in a peer VPC.'
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CHECK_DOC_extra74='https://docs.aws.amazon.com/vpc/latest/userguide/VPC_SecurityGroups.html'
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CHECK_CAF_EPIC_extra74='Infrastructure Security'
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extra74(){
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# "Ensure there are no Security Groups without ingress filtering being used "
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for regx in $REGIONS; do
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LIST_OF_SECURITYGROUPS=$($AWSCLI ec2 describe-security-groups $PROFILE_OPT --region $regx --filters "Name=ip-permission.cidr,Values=0.0.0.0/0" --query "SecurityGroups[].[GroupId]" --output text --max-items $MAXITEMS 2>&1)
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if [[ $(echo "$LIST_OF_SECURITYGROUPS" | grep -E 'AccessDenied|UnauthorizedOperation') ]]; then
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textInfo "$regx: Access Denied trying to describe security groups" "$regx"
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continue
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fi
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if [[ ${LIST_OF_SECURITYGROUPS} ]]
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then
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for SG_ID in $LIST_OF_SECURITYGROUPS; do
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SG_NO_INGRESS_FILTER=$($AWSCLI ec2 describe-network-interfaces $PROFILE_OPT --region $regx --filters "Name=group-id,Values=$SG_ID" --query "length(NetworkInterfaces)" --output text)
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if [[ $SG_NO_INGRESS_FILTER -ne 0 ]];then
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textFail "$regx: $SG_ID has no ingress filtering and it is being used!" "$regx" "$SG_ID"
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else
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textInfo "$regx: $SG_ID has no ingress filtering but it is not being used" "$regx" "$SG_ID"
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fi
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done
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else
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textPass "$regx: There is no EC2 Security Groups" "$regx" "No EBS Snapshots"
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fi
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done
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}
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