Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through
    2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the
    authentication of users for requests that marks forum posts as read. (CVE-2016-3734)

The remote web server hosts Moodle, an open-source course management system.  Versions of Moodle 2.7.x prior to 2.7.14 are exposed to the following vulnerabilities :

 - A flaw exists that may allow an attacker to have an unspecified impact.  No further details have been provided by the vendor.
 - A flaw exists that is due to the user editing form only disabling the profile fields in the UI and failing to restrict users from editing them.  This may allow an authenticated remote attacker to make changes to profiles. (CVE-2016-3729)
 - A flaw exists in the 'badges/lib.php' script that is triggered as capability checks to view other badges are performed for the current user instead for the user whose badges are being viewed.  This may allow an authenticated remote attacker to gain access to potentially sensitive information. (CVE-2016-3732)
 - A flaw exists in the 'backup/moodle2/restore_stepslib.php' script that may allow an authenticated remote attacker to overwrite the course ID number without having the proper authorization to do so. (CVE-2016-3733)
 - A flaw exists as HTTP requests to 'mod/forum/markposts.php' do not require multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions.  By tricking a user into following a specially crafted link, a context-dependent attacker can perform a Cross-Site Request Forgery (CSRF / XSRF) attack causing the victim to mark a forum post as read. (CVE-2016-3734)

The remote web server hosts Moodle, an open-source course management system.  Versions of Moodle 2.8.x prior to 2.8.12, 2.9.x prior to 2.9.6 or 3.0.x prior to 3.0.4 are exposed to the following vulnerabilities :

 - A flaw exists that may allow an attacker to have an unspecified impact.  No further details have been provided by the vendor.
 - A flaw exists that is due to the user editing form only disabling the profile fields in the UI and failing to restrict users from editing them.  This may allow an authenticated remote attacker to make changes to profiles.
 - A flaw exists in the subscription page that is triggered during the handling of overly verbose error messages.  This may allow a remote attacker to gain access to the name of inaccessible forums or forum discussions.
 - A flaw exists in the 'badges/lib.php' script that is triggered as capability checks to view other badges are performed for the current user instead for the user whose badges are being viewed.  This may allow an authenticated remote attacker to gain access to potentially sensitive information.
 - A flaw exists in the 'backup/moodle2/restore_stepslib.php' script that may allow an authenticated remote attacker to overwrite the course ID number without having the proper authorization to do so.
 - A flaw exists as HTTP requests to 'mod/forum/markposts.php' do not require multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions.  By tricking a user into following a specially crafted link, a context-dependent attacker can perform a Cross-Site Request Forgery (CSRF / XSRF) attack causing the victim to mark a forum post as read.

Marina Glancy reports :

- MSA-16-0013: Users are able to change profile fields that were locked by the administrator.

- MSA-16-0015: Information disclosure of hidden forum names and sub-names.

- MSA-16-0016: User can view badges of other users without proper permissions.

- MSA-16-0017: Course idnumber not protected from teacher restore.

- MSA-16-0018: CSRF in script marking forum posts as read.

ID	Name	Product	Family	Severity
432150	SCA: security update for moodle/moodle (GHSA-r867-v437-4rrm)	Tenable Cloud Security	SCA Checks	high
432150	SCA: security update for moodle/moodle (GHSA-r867-v437-4rrm)	Tenable Self-Hosted Container Security	SCA Checks	high
9428	Moodle 2.7.x < 2.7.14 Multiple Vulnerabilities	Nessus Network Monitor	CGI	critical
9427	Moodle 2.8.x < 2.8.12 / 2.9.x < 2.9.6 / 3.0.x < 3.0.4 Multiple Vulnerabilities	Nessus Network Monitor	CGI	critical
91930	FreeBSD : moodle -- multiple vulnerabilities (8656cf5f-4170-11e6-8dfe-002590263bf5)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2016-3734

high

Tenable Plugins

high

high

critical

critical

high