X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/9d7375c3b263e77da29a5db22af480db8b99d990..fc0b70e700ca9d029e5aedd013b00de0cf793993:/doc/security.mdwn?ds=sidebyside diff --git a/doc/security.mdwn b/doc/security.mdwn index dc763ef40..723c01863 100644 --- a/doc/security.mdwn +++ b/doc/security.mdwn @@ -6,6 +6,8 @@ security issues with this program than with cat(1). If, however, you let others edit pages in your wiki, then some possible security issues do need to be kept in mind. +[[toc levels=2]] + ---- # Probable holes @@ -134,7 +136,9 @@ file not be world readable. Login to the wiki involves sending a password in cleartext over the net. Cracking the password only allows editing the wiki as that user though. -If you care, you can use https, I suppose. +If you care, you can use https, I suppose. If you do use https either for +all of the wiki, or just the cgi access, then consider using the sslcookie +option. ## XSS holes in CGI output @@ -154,6 +158,20 @@ allowed, so that's not a problem.) ---- +# Plugins + +The security of [[plugins]] depends on how well they're written and what +external tools they use. The plugins included in ikiwiki are all held to +the same standards as the rest of ikiwiki, but with that said, here are +some security notes for them. + +* The [[plugins/img]] plugin assumes that imagemagick/perlmagick are secure + from malformed image attacks. Imagemagick has had security holes in the + past. To be able to exploit such a hole, a user would need to be able to + upload images to the wiki. + +---- + # Fixed holes _(Unless otherwise noted, these were discovered and immediately fixed by the @@ -254,3 +272,10 @@ seem to affect our use, since the data is not encoded as utf-8 at that point. #[378412](http://bugs.debian.org/378412) could affect us, although it doesn't seem very exploitable. It has a simple fix, and has been fixed in Debian unstable. + +## include loops + +Various directives that cause one page to be included into another could +be exploited to DOS the wiki, by causing a loop. Ikiwiki has always guarded +against this one way or another; the current solution should detect all +types of loops involving preprocessor directives.