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                              CERT-Renater

                 Note d'Information No. 2017/VULN261
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DATE                : 18/09/2017

HARDWARE PLATFORM(S):  /

OPERATING SYSTEM(S): Systems running Moodle versions prior to 3.3.2,
                                       3.2.5, 3.1.8.

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https://moodle.org/mod/forum/discuss.php?d=358588#p1446236
https://moodle.org/mod/forum/discuss.php?d=358587#p1446235
https://moodle.org/mod/forum/discuss.php?d=358586#p1446234
https://moodle.org/mod/forum/discuss.php?d=358585#p1446233
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MSA-17-0020: Admins may not know that exposing vendor directory is a
security risk

Marina Glancy
lundi 18 septembre 2017, 11:07


Directories vendor/ and node_modules/ that are created by composer and
used during Moodle development may expose dangerous scripts to the web
and should never be present on production sites. This issue adds a
respective security check.

Manual action may be required from the site admin to remove composer-
generated directories or prevent access to them from the web.

Severity/Risk: 	        Serious
Versions affected: 	3.3 to 3.3.1, 3.2 to 3.2.4, 3.1 to 3.1.7 and
                         earlier unsupported versions
Versions fixed: 	3.3.2, 3.2.5 and 3.1.8
Reported by: 	        David Mudrák
CVE identifier: 	CVE-2017-9841 reported against PHPUnit project,
                         it is relevant to the version used in Moodle
                         development
Changes (master): 	
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-59969
Tracker issue: 	MDL-59969 Admins may not know that exposing vendor
directory is a security risk

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MSA-17-0019: user_can_view_profile() incorrectly assumes $course as
shared course

Marina Glancy
lundi 18 septembre 2017, 11:03


This fix may affect plugins using this API function, there is no
exploit in standard Moodle


Severity/Risk: 	        Minor
Versions affected: 	3.3 to 3.3.1, 3.2 to 3.2.4, 3.1 to 3.1.7 and
                         earlier unsupported versions
Versions fixed: 	3.3.2, 3.2.5 and 3.1.8
Reported by: 	        Ankit Agarwal
Changes (master): 	
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-58953
Tracker issue: 	MDL-58953 user_can_view_profile() incorrectly assumes
$course as $sharedcourse

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MSA-17-0018: Course reports are not respecting group settings in courses

Marina Glancy
lundi 18 septembre 2017, 11:02


Number of course reports allowed teachers to view details about users in
the groups they can't access


Severity/Risk: 	        Minor
Versions affected: 	3.3 to 3.3.1, 3.2 to 3.2.4, 3.1 to 3.1.7 and
                         earlier unsupported versions
Versions fixed: 	3.3.2, 3.2.5 and 3.1.8
Reported by: 	        Juan Leyva
CVE identifier: 	CVE-2017-12157
Changes (master): 	
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-58762
Tracker issue: 	MDL-58762 Course reports are not respecting group
settings in courses

____________________________________________________________________

MSA-17-0017: XSS in contact form on "non-respondents" page in
non-anonymous feedback

Marina Glancy
lundi 18 septembre 2017, 11:01


Form on the feedback "non-respondents" page does not escape the value
of subject thus creating self-XSS. This can be used to attack another
user by tricking them into opening malicious URL whilst in an open
Moodle session


Severity/Risk: 	        Minor
Versions affected: 	3.3 to 3.3.1, 3.2 to 3.2.4, 3.1 to 3.1.7 and
                         earlier unsupported versions
Versions fixed: 	3.3.2, 3.2.5 and 3.1.8
Reported by:    	JPCERT/CC
CVE identifier: 	CVE-2017-12156
Changes (master): 	
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-59972
Tracker issue: 	MDL-59972 XSS in contact form on "non-respondents" page
(mod_feedback)

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+ CERT-RENATER          | tel : 01-53-94-20-44           +
+ 23 - 25 Rue Daviel    | fax : 01-53-94-20-41           +
+ 75013 Paris           | email: cert@support.renater.fr +
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