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Content-Security-Policy (CSP) for Verse webmail

Better Security for Verse webmail - CSP Support

Verse webmail currently uses scripts and styles in the form of inline scripts, and sometimes dynamic evaluations of strings to executable code.

To protect Verse against Cross-Site-Scripting (XSS) using Conent-Security-Policy (CSP), the keywords 'unsafe-inline' and 'unsafe-eval' have to be used at the moment. Unfortunately, these keywords make CSP protection significantly less effective.

There are several ways to improve security in Verse:

  • Reduce the number of inline scripts in DOM objects (or avoid them), and prefer loading scripts from a URI

  • Reduce the number of inline style sheets in DOM objects, and prefer loading them from a URI

  • Add CSP nonce values to script meta tags

  • Redesign the Verse code, so that scripts are loaded in an "inheritable" way, which will allow using the CSP keyword 'strict-dynamic'. This will reduce the cost for maintaining a CSP Policy over the course of upgrades to new Verse releases.

  • Have the Verse application automatically add a secure CSP Policy. Provide configurable options to automatically integrate with other HCL products, such as HCL Connections, HCL Sametime, etc.

  • Provide configurable CSP reporting options

  • Remove legacy iNotes components (such as Personal Contacts) to simplify the security architecture


[ Toni Feric, Belsoft Collaboration ]

  • Guest
  • Apr 8 2022
  • Needs Review
  • Attach files