From bde94829287d9134382700184087ca14eb6f97c3 Mon Sep 17 00:00:00 2001
From: Toni de la Fuente <toni.delafuente@alfresco.com>
Date: Tue, 12 Mar 2019 22:40:40 -0400
Subject: [PATCH] Added check extra742 to find keys in CloudFormation Outputs

---
 checks/check_extra742 | 47 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 checks/check_extra742

diff --git a/checks/check_extra742 b/checks/check_extra742
new file mode 100644
index 00000000..b0ba818b
--- /dev/null
+++ b/checks/check_extra742
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+# Prowler - the handy cloud security tool (copyright 2018) 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_extra742="7.42"
+CHECK_TITLE_extra742="[extra742] Find keys in CloudFormation outputs (Not Scored) (Not part of CIS benchmark)"
+CHECK_SCORED_extra742="NOT_SCORED"
+CHECK_TYPE_extra742="EXTRA"
+CHECK_ALTERNATE_check742="extra742"
+
+extra742(){
+  textInfo "Looking for keys in CloudFormation output across all regions... "
+  for regx in $REGIONS; do
+    LIST_OF_CFN_STACKS=$($AWSCLI cloudformation describe-stacks $PROFILE_OPT --region $regx --query Stacks[*].[StackName] --output text)
+    if [[ $LIST_OF_CFN_STACKS ]];then
+      for stack in $LIST_OF_CFN_STACKS; do
+        OUTPUTS_FILE=$stack-$regx-output.txt
+        OUTPUTS=$($AWSCLI $PROFILE_OPT --region $regx cloudformation describe-stacks --query "Stacks[?StackName==\`$stack\`].Outputs[*].[OutputKey,OutputValue]" --output text > $OUTPUTS_FILE)
+        if [ -s $OUTPUTS ];then
+          #FINDINGS=$(grep '[A-Za-z0-9]\{20,40\}' $USERDATA_FILE | grep -i -e key -e secret -e token -e pass - |wc -l|tr -d '\ ')
+          #FINDINGS=$(grep -i -e key -e secret -e token -e pass $USERDATA_FILE |wc -l|tr -d '\ ')
+          # This finds ftp or http URLs with credentials and common keywords
+          FINDINGS=$(egrep -i '[[:alpha:]]*://[[:alnum:]]*:[[:alnum:]]*@.*/|key|secret|token|pass' $OUTPUTS_FILE |wc -l|tr -d '\ ')
+          if [[ $FINDINGS -eq 0 ]]; then
+            textPass "$regx: No keys found in Stack $stack" "$regx"
+            # delete file if nothing interesting is there
+            rm -f $OUTPUTS_FILE
+          else
+            textFail "$regx: Found $FINDINGS keys in $stack! Check file $OUTPUTS_FILE" "$regx"
+          fi
+        else
+          textPass "$regx: Stack $stack has not Outputs" "$regx"
+        fi
+      done
+    else
+      textInfo "$regx: No CloudFormation stacks found" "$regx"
+    fi
+  done
+}