Moodle up to 2.8.11/2.9.5/3.0.3 markposts.php cross-site request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Moodle up to 2.8.11/2.9.5/3.0.3. The impacted element is an unknown function of the file markposts.php. The manipulation leads to cross-site request forgery. This vulnerability is traded as CVE-2016-3734. It is possible to initiate the attack remotely. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Moodle up to 2.8.11/2.9.5/3.0.3 (Learning Management Software). It has been rated as problematic. This issue affects an unknown code of the file markposts.php. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. The summary by CVE is:

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.

The bug was discovered 05/18/2016. The weakness was shared 04/20/2017 by Takeshi Terada (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2016-3734 since 03/30/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 46 days. During that time the estimated underground price was around $5k-$25k. By approaching the search of inurl:markposts.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 91930 (FreeBSD : moodle -- multiple vulnerabilities (8656cf5f-4170-11e6-8dfe-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.moodle.org. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91930) and SecurityFocus (BID 91281†). The entries VDB-88604, VDB-100345, VDB-100346 and VDB-100347 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91930
Nessus Name: FreeBSD : moodle -- multiple vulnerabilities (8656cf5f-4170-11e6-8dfe-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for moodle FEDORA-2016-286bacdbfb
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.moodle.org

Timelineinfo

03/30/2016 🔍
05/18/2016 +49 days 🔍
06/17/2016 +30 days 🔍
07/03/2016 +16 days 🔍
07/05/2016 +2 days 🔍
04/20/2017 +289 days 🔍
04/20/2017 +0 days 🔍
04/21/2017 +1 days 🔍
12/21/2020 +1340 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: openwall.com
Researcher: Takeshi Terada
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-3734 (🔍)
GCVE (CVE): GCVE-0-2016-3734
GCVE (VulDB): GCVE-100-100349
SecurityFocus: 91281 - Apache Struts CVE-2016-4430 Cross-Site Request Forgery Vulnerability
OSVDB: - CVE-2016-3734 - Moodle - Cross-Site Request Forgery Issue
SecurityTracker: 1035902

See also: 🔍

Entryinfo

Created: 04/21/2017 09:46
Updated: 12/21/2020 09:39
Changes: 04/21/2017 09:46 (73), 09/18/2020 17:27 (6), 12/21/2020 09:39 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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