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             AUSCERT External Security Bulletin Redistribution

  MFSA 2021-32 Insecure Sharing of HTML/JS Files in Hubs Cloud Reticulum
                               20 July 2021


        AusCERT Security Bulletin Summary

Product:           Hubs Cloud
Publisher:         Mozilla
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Cross-site Scripting -- Remote/Unauthenticated
                   Reduced Security     -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-29954  

Original Bulletin: 

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Mozilla Foundation Security Advisory 2021-32

Insecure Sharing of HTML/JS Files in Hubs Cloud Reticulum

Announced: July 14, 2021
Impact:    high
Products:  Hubs Cloud
Fixed in:  Hubs Cloud mozillareality/reticulum/1.0.1/20210618012634

Hubs Cloud allows users to share content with other Hubs Cloud users. However,
the implicit content type that was being used to serve HTML/JS files could give
way to XSS vulnerabilities. To the best of our understanding, this issue was
not abused in the wild. If you believe your Hubs Cloud instance has been
abused, please contact Mozilla directly via hubs-support@mozilla.com

# CVE-2021-29954: Insecure Sharing of HTML/JS Files in Hubs Cloud Reticulum

Reporter: Muhammad R. Maulana
Impact:   high


Hubs Cloud allows users to download shared content, specifically HTML and JS,
which could allow javascript execution in the Hub Cloud instance's primary
hosting domain.


  o Bug 1682370

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