80 lines
2.2 KiB
Bash
Executable File
80 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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if [ $# -ne 2 ]; then
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echo "Usage: evaluate-iam-role.sh <profile> <role-name>"
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exit 1
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fi
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PROFILE=$1
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ROLE_NAME=$2
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known_dangerous_permissions=(
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"iam:CreatePolicyVersion"
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"iam:SetDefaultPolicyVersion"
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"iam:PassRole"
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"ec2:RunInstances"
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"iam:CreateAccessKey"
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"iam:CreateLoginProfile"
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"iam:UpdateLoginProfile"
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"iam:AttachUserPolicy"
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"iam:AttachGroupPolicy"
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"iam:AttachRolePolicy"
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"iam:PutUserPolicy"
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"iam:PutGroupPolicy"
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"iam:PutRolePolicy"
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"iam:AddUserToGroup"
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"iam:UpdateAssumeRolePolicy"
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"sts:AssumeRole"
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"iam:PassRole"
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"lambda:CreateFunction"
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"lambda:InvokeFunction"
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"lambda:CreateEventSourceMapping"
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"lambda:UpdateFunctionCode"
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"glue:CreateDevEndpoint"
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"glue:UpdateDevEndpoint"
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"cloudformation:CreateStack"
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"datapipeline:CreatePipeline"
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"datapipeline:PutPipelineDefinition"
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)
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role_policy=$(aws --profile $PROFILE iam get-role --role-name $ROLE_NAME)
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echo -e "=============== Role: $ROLE_NAME ==============="
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echo "$role_policy"
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IFS=$'\n'
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attached_role_policies=($(aws --profile $PROFILE iam list-attached-role-policies --role-name $ROLE_NAME | jq -r '.AttachedPolicies[].PolicyArn'))
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dangerous_permissions=()
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for policy in "${attached_role_policies[@]}" ; do
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echo -e "\n=============== Attached Policy Arn: $policy ==============="
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version_id=$(aws --profile $PROFILE iam get-policy --policy-arn $policy | jq -r '.Policy.DefaultVersionId')
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policy_version=$(aws --profile $PROFILE iam get-policy-version --policy-arn $policy --version-id $version_id)
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echo "$policy_version"
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permissions=($(echo "$policy_version" | jq -r '.PolicyVersion.Document.Statement[].Action | if type=="string" then [.] else . end | .[]'))
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effect=$(echo "$policy_version" | jq -r '.PolicyVersion.Document.Statement[].Effect' )
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if [[ "$effect" == "Allow" ]]; then
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for perm in "${permissions[@]}" ; do
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for dangperm in "${known_dangerous_permissions[@]}"; do
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if echo "$dangperm" | grep -iq $perm ; then
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dangerous_permissions+=("$perm")
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fi
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done
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done
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fi
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done
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if [[ ${#dangerous_permissions[@]} -gt 0 ]]; then
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echo -e "\n\n=============== Detected dangerous permissions granted ==============="
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for dangperm in "${dangerous_permissions[@]}"; do
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echo -e "\t$dangperm"
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done
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else
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echo -e "\nNo dangerous permissions were found to be granted."
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fi
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