diff --git a/checks/check45 b/checks/check45 new file mode 100644 index 00000000..299adbc1 --- /dev/null +++ b/checks/check45 @@ -0,0 +1,38 @@ +#!/usr/bin/env bash + +# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may not +# use this file except in compliance with the License. You may obtain a copy +# of the License at http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software distributed +# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +# CONDITIONS OF ANY KIND, either express or implied. See the License for the +# specific language governing permissions and limitations under the License. +CHECK_ID_check45="4.5" +CHECK_TITLE_check45="[check45] Ensure no Network ACLs allow ingress from 0.0.0.0/0 to SSH port 22" +CHECK_SCORED_check45="SCORED" +CHECK_TYPE_check45="LEVEL2" +CHECK_SEVERITY_check45="High" +CHECK_ASFF_TYPE_check45="Software and Configuration Checks/Industry and Regulatory Standards/CIS AWS Foundations Benchmark" +CHECK_ASFF_RESOURCE_TYPE_check45="AwsEc2NetworkAcl" +CHECK_ALTERNATE_check401="check45" +CHECK_SERVICENAME_check45="ec2" +CHECK_RISK_check45='Even having a perimeter firewall; having network acls open allows any user or malware with vpc access to scan for well known and sensitive ports and gain access to instance.' +CHECK_REMEDIATION_check45='Apply Zero Trust approach. Implement a process to scan and remediate unrestricted or overly permissive network acls. Recommended best practices is to narrow the definition for the minimum ports required.' +CHECK_DOC_check45='' +CHECK_CAF_EPIC_check45='Infrastructure Security' + +check45(){ + for regx in $REGIONS; do + NACL_LIST=$($AWSCLI ec2 describe-network-acls --query 'NetworkAcls[?Entries[?(((!PortRange) || (PortRange.From<=`22` && PortRange.To>=`22`)) && ((CidrBlock == `0.0.0.0/0`) && (Egress == `false`) && (RuleAction == `allow`)))]].{NetworkAclId:NetworkAclId}' $PROFILE_OPT --region $regx --output text) + if [[ $NACL_LIST ]];then + for NACL in $NACL_LIST;do + textInfo "$regx: Found Network ACL: $NACL open to 0.0.0.0/0 for SSH port 22" "$regx" + done + else + textPass "$regx: No Network ACL found with SSH port 22 open to 0.0.0.0/0" "$regx" + fi + done +} diff --git a/checks/check46 b/checks/check46 new file mode 100644 index 00000000..5f69998d --- /dev/null +++ b/checks/check46 @@ -0,0 +1,38 @@ +#!/usr/bin/env bash + +# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may not +# use this file except in compliance with the License. You may obtain a copy +# of the License at http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software distributed +# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +# CONDITIONS OF ANY KIND, either express or implied. See the License for the +# specific language governing permissions and limitations under the License. +CHECK_ID_check46="4.6" +CHECK_TITLE_check46="[check46] Ensure no Network ACLs allow ingress from 0.0.0.0/0 to Microsoft RDP port 3389" +CHECK_SCORED_check46="SCORED" +CHECK_TYPE_check46="LEVEL2" +CHECK_SEVERITY_check46="High" +CHECK_ASFF_TYPE_check46="Software and Configuration Checks/Industry and Regulatory Standards/CIS AWS Foundations Benchmark" +CHECK_ASFF_RESOURCE_TYPE_check46="AwsEc2NetworkAcl" +CHECK_ALTERNATE_check401="check46" +CHECK_SERVICENAME_check46="ec2" +CHECK_RISK_check46='Even having a perimeter firewall; having network acls open allows any user or malware with vpc access to scan for well known and sensitive ports and gain access to instance.' +CHECK_REMEDIATION_check46='Apply Zero Trust approach. Implement a process to scan and remediate unrestricted or overly permissive network acls. Recommended best practices is to narrow the definition for the minimum ports required.' +CHECK_DOC_check46='' +CHECK_CAF_EPIC_check46='Infrastructure Security' + +check46(){ + for regx in $REGIONS; do + NACL_LIST=$($AWSCLI ec2 describe-network-acls --query 'NetworkAcls[?Entries[?(((!PortRange) || (PortRange.From<=`3389` && PortRange.To>=`3389`)) && ((CidrBlock == `0.0.0.0/0`) && (Egress == `false`) && (RuleAction == `allow`)))]].{NetworkAclId:NetworkAclId}' $PROFILE_OPT --region $regx --output text) + if [[ $NACL_LIST ]];then + for NACL in $NACL_LIST;do + textInfo "$regx: Found Network ACL: $NACL open to 0.0.0.0/0 for Microsoft RDP port 3389" "$regx" + done + else + textPass "$regx: No Network ACL found with Microsoft RDP port 3389 open to 0.0.0.0/0" "$regx" + fi + done +} diff --git a/checks/check_extra7138 b/checks/check_extra7138 new file mode 100644 index 00000000..e23f0a81 --- /dev/null +++ b/checks/check_extra7138 @@ -0,0 +1,38 @@ +#!/usr/bin/env bash + +# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may not +# use this file except in compliance with the License. You may obtain a copy +# of the License at http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software distributed +# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +# CONDITIONS OF ANY KIND, either express or implied. See the License for the +# specific language governing permissions and limitations under the License. +CHECK_ID_extra7138="7.138" +CHECK_TITLE_extra7138="[extra7138] Ensure no Network ACLs allow ingress from 0.0.0.0/0 to any port" +CHECK_SCORED_extra7138="NOT SCORED" +CHECK_TYPE_extra7138="LEVEL2" +CHECK_SEVERITY_extra7138="High" +CHECK_ASFF_TYPE_extra7138="Software and Configuration Checks/Industry and Regulatory Standards/CIS AWS Foundations Benchmark" +CHECK_ASFF_RESOURCE_TYPE_extra7138="AwsEc2NetworkAcl" +CHECK_ALTERNATE_check7138="extra7138" +CHECK_SERVICENAME_extra7138="ec2" +CHECK_RISK_extra7138='Even having a perimeter firewall; having network acls open allows any user or malware with vpc access to scan for well known and sensitive ports and gain access to instance.' +CHECK_REMEDIATION_extra7138='Apply Zero Trust approach. Implement a process to scan and remediate unrestricted or overly permissive network acls. Recommended best practices is to narrow the definition for the minimum ports required.' +CHECK_DOC_extra7138='' +CHECK_CAF_EPIC_extra7138='Infrastructure Security' + +extra7138(){ + for regx in $REGIONS; do + NACL_LIST=$($AWSCLI ec2 describe-network-acls --query 'NetworkAcls[?Entries[?((!PortRange) && (CidrBlock == `0.0.0.0/0`) && (Egress == `false`) && (RuleAction == `allow`))]].{NetworkAclId:NetworkAclId}' $PROFILE_OPT --region $regx --output text) + if [[ $NACL_LIST ]];then + for NACL in $NACL_LIST;do + textInfo "$regx: Found Network ACL: $NACL open to 0.0.0.0/0 for any port" "$regx" + done + else + textPass "$regx: No Network ACL found with any port open to 0.0.0.0/0" "$regx" + fi + done +} \ No newline at end of file diff --git a/groups/group17_internetexposed b/groups/group17_internetexposed index 8df4a499..33e30e18 100644 --- a/groups/group17_internetexposed +++ b/groups/group17_internetexposed @@ -15,7 +15,7 @@ GROUP_ID[17]='internet-exposed' GROUP_NUMBER[17]='17.0' GROUP_TITLE[17]='Find resources exposed to the internet - [internet-exposed] ***' GROUP_RUN_BY_DEFAULT[17]='N' # run it when execute_all is called -GROUP_CHECKS[17]='check41,check42,extra72,extra73,extra74,extra76,extra77,extra78,extra79,extra710,extra711,extra716,extra723,extra727,extra731,extra736,extra738,extra745,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra756,extra770,extra771,extra778,extra779,extra787,extra788,extra795,extra796,extra798,extra7102,extra7134,extra7135,extra7136,extra7137' +GROUP_CHECKS[17]='check41,check42,check45,check46,extra72,extra73,extra74,extra76,extra77,extra78,extra79,extra710,extra711,extra716,extra723,extra727,extra731,extra736,extra738,extra745,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra756,extra770,extra771,extra778,extra779,extra787,extra788,extra795,extra796,extra798,extra7102,extra7134,extra7135,extra7136,extra7137,extra7138' # 4.1 [check41] Ensure no security groups allow ingress from 0.0.0.0/0 or ::/0 to port 22 (Scored) [group4, cislevel1, cislevel2] # 4.2 [check42] Ensure no security groups allow ingress from 0.0.0.0/0 or ::/0 to port 3389 (Scored) [group4, cislevel1, cislevel2] diff --git a/groups/group4_networking b/groups/group4_networking index 05b307b4..ca124465 100644 --- a/groups/group4_networking +++ b/groups/group4_networking @@ -12,4 +12,4 @@ GROUP_ID[4]='group4' GROUP_NUMBER[4]='4.0' GROUP_TITLE[4]='Networking - CIS only - [group4] *******************************' GROUP_RUN_BY_DEFAULT[4]='Y' # run it when execute_all is called -GROUP_CHECKS[4]='check41,check42,check43,check44' +GROUP_CHECKS[4]='check41,check42,check43,check44,check45,check46'