diff options
author | Jonas Smedegaard <dr@jones.dk> | 2010-08-27 10:01:58 +0200 |
---|---|---|
committer | Jonas Smedegaard <dr@jones.dk> | 2010-08-27 10:01:58 +0200 |
commit | f398ad035b973608d380c9939ea845d8e2a0cdc2 (patch) | |
tree | 1ba1a0c94e375ab8ed609eaa57a542c6b87de5a8 /doc/security.mdwn | |
parent | 958e5735c946263a111420fe47abe58782581e8c (diff) | |
parent | 6d213a0c739d5b34357b01a616f99197eeba6ad9 (diff) |
Merge branch 'master' of git://git.ikiwiki.info
Diffstat (limited to 'doc/security.mdwn')
-rw-r--r-- | doc/security.mdwn | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/doc/security.mdwn b/doc/security.mdwn index 939d65d01..34a005239 100644 --- a/doc/security.mdwn +++ b/doc/security.mdwn @@ -162,10 +162,11 @@ closed though. ## HTML::Template security -If the [[plugins/template]] plugin is enabled, users can modify templates -like any other part of the wiki. This assumes that HTML::Template is secure +If the [[plugins/template]] plugin is enabled, all users can modify templates +like any other part of the wiki. Some trusted users can modify templates +without it too. This assumes that HTML::Template is secure when used with untrusted/malicious templates. (Note that includes are not -allowed, so that's not a problem.) +allowed.) ---- @@ -417,3 +418,25 @@ attack. intrigeri discovered this problem on 12 Nov 2008 and a patch put in place later that day, in version 2.70. The fix was backported to testing as version 2.53.3, and to stable as version 1.33.7. + +## Insufficient blacklisting in teximg plugin + +Josh Triplett discovered on 28 Aug 2009 that the teximg plugin's +blacklisting of insecure TeX commands was insufficient; it could be +bypassed and used to read arbitrary files. This was fixed by +enabling TeX configuration options that disallow unsafe TeX commands. +The fix was released on 30 Aug 2009 in version 3.1415926, and was +backported to stable in version 2.53.4. If you use the teximg plugin, +I recommend upgrading. ([[!cve CVE-2009-2944]]) + +## javascript insertion via svg uris + +Ivan Shmakov pointed out that the htmlscrubber allowed `data:image/*` urls, +including `data:image/svg+xml`. But svg can contain javascript, so that is +unsafe. + +This hole was discovered on 12 March 2010 and fixed the same day +with the release of ikiwiki 3.20100312. +A fix was also backported to Debian etch, as version 2.53.5. I recommend +upgrading to one of these versions if your wiki can be edited by third +parties. |