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CAPTCHA implementation for SFG UI Interface

One of our Customer (STATE BANK OF INDIA) raised the below security issue. They are migrating their SFTP partner to Sterling File Gateway. They have requested to have CAPTCHA option when partners uploading files via the SFG UI. Their requirement is to have a manual intervention through CAPTCHA to prevent any automated file uploads. We have told customer that the CAPTCHA option is not available in current product versions, but we have suggested to have adapter policies/customizing user permissions to achieve this. We also suggested mailbox user exit option to see if that helps here. However, SBI would like to have CAPTCHA option as a proactive approach to prevent such file uploads .

  • Guest
  • Nov 22 2021
  • Functionality already exists
What is your industry? Banking
How will this idea be used?

Implementation of CAPTCHA option when partners uploading files via the SFG UI for security reasons. Their requirement is to have a manual intervention through CAPTCHA to prevent any automated file uploads.

  • Guest commented
    1 Apr 09:39am

    Hi Ryan


    We have already suggested mentioned solution (MFA) to our customer and they have rejected it. Customer do not want captcha implementation on login page.

    It is mandatory to implement rate limiting mechanism (Captcha) for file upload from UI, i.e, captcha implementation on fileupload page for myfilegateway URL. This is required to prevent any automated file upload script execution by a bot ,etc.


    Captcha is required after user is authenticated ,is able to access their respective mailbox and tries to upload a file. Any file upload by user has to go through captcha validation, post validation file should get uploaded.

    Request you to check the feasibility.


    Just for your information, we also tried to suggest a work around as below which customer has not agreed:

    1. Uploading a file can only been done by an authenticated trading partner.

    2. If a trading partner acts as attacker and upload a lot of files. The problem can be easily identified and the trading partner can be disabled.

    3. If the customer wants, they can disable file upload from UI and forced the trading partners to upload a file via ftp or sftp. For ftp and sftp, we have rate limit control in Deployment -> Adapter Utilities -> Policy Configuration in dashboard UI. The customer can remove "myfilegateway File Upload" permission to disable file uploading via UI.

  • Admin
    Ryan Wood commented
    31 Mar 11:57pm

    Hello, SFG can be extended with Sterling Secure Proxy and SEAS to connect to external identity providers over SAML 2.0.


    More information on MFA can be found here:

    https://community.ibm.com/community/user/supplychain/blogs/vijay-chougule/2021/02/24/multi-factor-authentication-for-ibm-sterling-b2b-c

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