** CVE added: https://cve.mitre.org/cgi- bin/cvename.cgi?name=2017-1000133
-- You received this bug notification because you are a member of Mahara Contributors, which is subscribed to Mahara. Matching subscriptions: Subscription for all Mahara Contributors -- please ask on #mahara-dev or mahara.org forum before editing or unsubscribing it! https://bugs.launchpad.net/bugs/1234615 Title: Not checking artefact permissions before exporting Status in Mahara: Fix Released Status in Mahara 1.10 series: Won't Fix Status in Mahara 1.9 series: Won't Fix Status in Mahara 15.04 series: Fix Released Status in Mahara 15.10 series: Fix Released Status in Mahara 16.04 series: Fix Released Status in Mahara 16.10 series: Fix Released Bug description: In https://bugs.launchpad.net/bugs/1211758 , the reporter mentioned that in addition to embedding other users' artefacts in your pages, you could export them to view their full content: #3: Export function allows arbitrary file download Using the technique above you can get a 1024x1024 'thumbnail' of any users arbitrary file. Simply use the export function on a page like the one above where other users images are embedded. Make sure the embedded images max-size is set to 1024 and it will appear within /files/extra. There is an obvious fix for this issue, of checking $USER->can_publish_artefac()t or $USER->can_view_artefact() on each artefact before exporting it. But when Robert tested this fix, he found that it was too resource-intensive (as part of the already resource-intensive export process) for it to work while exporting an average-sized portfolio. Since fixing the embedding of other users' data mitigates the risk from this issue and was easier to accomplish, I've released that fix and spun this one off into a separate bug to fix when we're able. To manage notifications about this bug go to: https://bugs.launchpad.net/mahara/+bug/1234615/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~mahara-contributors Post to : [email protected] Unsubscribe : https://launchpad.net/~mahara-contributors More help : https://help.launchpad.net/ListHelp
