** Changed in: mahara/16.04
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1508684
Title:
Unserialize untrusted data when importing skins
Status in Mahara:
Fix Committed
Status in Mahara 15.04 series:
Fix Committed
Status in Mahara 15.10 series:
Fix Released
Status in Mahara 16.04 series:
Fix Released
Bug description:
Version: 1.10, 15.04. 15.10, master
Platform: any
There is a unserialize vulnerability in skin import function
see line 200 in htdocs/skin/import.php
When importing the attached skin, you will see the error:
[WAR] ce (lib/web.php:3684) Object of class __PHP_Incomplete_Class could not
be converted to string
Call stack (most recent first):
log_message("Object of class __PHP_Incomplete_Class could not b...", 8, true,
true, "/var/www/mahara/master/htdocs/lib/web.php", 3684) at
/var/www/mahara/master/htdocs/lib/errors.php:441
error(4096, "Object of class __PHP_Incomplete_Class could not b...",
"/var/www/mahara/master/htdocs/lib/web.php", 3684, array(size 5)) at
/var/www/mahara/master/htdocs/lib/web.php:3684
clean_css(object(__PHP_Incomplete_Class), true) at
/var/www/mahara/master/htdocs/skin/import.php:200
importskinform_submit(object(Pieform), array(size 4)) at Unknown:0
call_user_func_array("importskinform_submit", array(size 2)) at
/var/www/mahara/master/htdocs/lib/pieforms/pieform.php:537
Pieform->__construct(array(size 4)) at
/var/www/mahara/master/htdocs/lib/pieforms/pieform.php:164
Pieform::process(array(size 4)) at
/var/www/mahara/master/htdocs/lib/pieforms/pieform.php:71
pieform(array(size 4)) at /var/www/mahara/master/htdocs/skin/import.php:64
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