We have recently become aware of an important security issue
that affects all released Zope versions including the recent
2.2 beta 1 release.
The issue involves an inadequately protected method in one of
the base classes in the DocumentTemplate package that could allow
the contents of DTMLDocuments or DTMLMethods to be changed
remotely or through DTML code without forcing proper user
A Zope 2.1.7 release has been made that resolves this issue for
Zope 2.1.x users. This release is available from Zope.org:
A patch is also available if it is not feasible to update your
Zope installation at this time (the patch is based on 2.1.6):
If you are evaluating any of the recent 2.2 alpha or beta releases,
you should apply the patch noted above if your site is accessible
by untrusted clients. A forthcoming 2.2 beta 2 release will contain
the fix for this issue.
While we know of no instances of this issue being used to exploit a
site, we *highly* recommend that any Zope site that is accessible by
untrusted clients take the appropriate mitigation steps immediately.
Brian Lloyd [EMAIL PROTECTED]
Software Engineer 540.371.6909
Digital Creations http://www.digicool.com
Zope maillist - [EMAIL PROTECTED]
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