Date: Tue, 19 Feb 2008 17:30:22 +0300 From: Solar Designer <solar@...nwall.com> To: oss-security@...ts.openwall.com Subject: Re: wiki - e-mail address obfuscation I wrote: > ... it only > obfuscates e-mail addresses it recognizes - not anything with an @-sign. > So we need to be very careful about this - e-mail addresses must be > entered as <user@...mple.org> - with the angle brackets. Of course, folks will often be entering e-mail addresses without the angle brackets, at least initially - and that's enough for the spammers because old revisions of wiki pages are available. I've fixed a few of these right in the underlying files (for the old revisions), but I'm afraid I'll give up now. > I just found another issue: it is possible to "show differences to > current version" without being logged in - and, of course, original > (non-obfuscated) e-mail addresses are seen in these source diffs. > > Unless we come up with a way to address that (e.g., somehow disable this > feature for anonymous visitors), I'm afraid that we'll have to obfuscate > addresses manually prior to entering them into the wiki... With many contributors to the wiki (which is great!), I'm afraid that we won't be able to "enforce manual obfuscation" either. So I think that we need to enhance DokuWiki ourselves or request the enhancement from upstream - and do it urgently. Specifically, we need two things: 1. DokuWiki should optionally detect e-mail addresses that are not in angle brackets, and obfuscate those as well. Alternatively, it should replace all @-signs. 2. DokuWiki should optionally restrict the "show differences to current version" feature to logged in users (or even to certain groups). Alternatively, it should obfuscate e-mail addresses (or replace @-signs) even in the diffs. Dmitry (Galaxy) - will you be able to take care of discussing this with upstream - and maybe developing, contributing, and applying a patch (to our install)? Any other volunteers? Thanks in advance, Alexander
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