GCP - Cloud Run Unauthenticated Enum

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Cloud Run

For more information about Cloud Run check:

pageGCP - Cloud Run Enum

Enumerate Open Cloud Run

With the following code taken from here you can find Cloud Run services that permit unauthenticated invocations.

#!/bin/bash

############################
# Run this tool to find Cloud Run services that permit unauthenticated
# invocations anywhere in your GCP organization.
# Enjoy!
############################

for proj in $(gcloud projects list --format="get(projectId)"); do
    echo "[*] scraping project $proj"

    enabled=$(gcloud services list --project "$proj" | grep "Cloud Run API")

    if [ -z "$enabled" ]; then
	continue
    fi


    for run in $(gcloud run services list --platform managed --quiet --project $proj --format="get(name)"); do
        ACL="$(gcloud run services get-iam-policy $run --platform managed --project $proj)"

        all_users="$(echo $ACL | grep allUsers)"
        all_auth="$(echo $ACL | grep allAuthenticatedUsers)"

        if [ -z "$all_users" ]
        then
              :
        else
              echo "[!] Open to all users: $proj: $run"
        fi

        if [ -z "$all_auth" ]
        then
              :
        else
              echo "[!] Open to all authenticated users: $proj: $run"
        fi
    done
done

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• Get the official PEASS & HackTricks swag

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• Join the 💬 Discord group or the telegram group or follow me on Twitter 🐦 @carlospolopm.

• Share your hacking tricks by submitting PRs to the HackTricks and HackTricks Cloud github repos.