XWiki Platform's Mail.MailConfig can be edited by any user with edit rights

Impact

Mail.MailConfig can be edited by any logged-in user by default. Consequently, they can:

• change the mail obfuscation configuration
• view and edit the mail sending configuration, including the smtp domain name and credentials.

Patches

The problem has been patched on XWiki 14.4.8, 15.1, and 14.10.6.

Workarounds

The rights of the Mail.MailConfig page can be manually updated so that only a set of trusted users can view, edit and delete it (e.g., the XWiki.XWikiAdminGroup group).
On 14.4.8+, 15.1-rc-1+, or 14.10.5+, if at startup Mail.MailConfig does not have any rights defined, view, edit and delete rights are automatically granted to the XWiki.XWikiAdminGroup group.
See the corresponding patch.

References

• https://jira.xwiki.org/browse/XWIKI-20519 + https://jira.xwiki.org/browse/XWIKI-20671
• https://github.com/xwiki/xwiki-platform/commit/d28d7739089e1ae8961257d9da7135d1a01cb7d4
• https://github.com/xwiki/xwiki-platform/commit/8910b8857d3442d2e8142f655fdc0512930354d1

For more information

If you have any questions or comments about this advisory:

• Open an issue in Jira XWiki.org
• Email us at Security Mailing List