Moodle up to 2.6.11/2.7.10/2.8.8/2.9.2 Flowplayer SWF File cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Moodle up to 2.6.11/2.7.10/2.8.8/2.9.2. This impacts an unknown function of the component Flowplayer. Performing a manipulation as part of SWF File results in cross site scripting. This vulnerability is reported as CVE-2015-5337. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Moodle up to 2.6.11/2.7.10/2.8.8/2.9.2 (Learning Management Software). This affects an unknown code of the component Flowplayer. The manipulation as part of a SWF File leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 does not properly restrict the availability of Flowplayer, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted .swf file.

The weakness was disclosed 02/22/2016 by Andrew (Website). The advisory is shared at moodle.org. This vulnerability is uniquely identified as CVE-2015-5337 since 07/01/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 89194 (Fedora 22 : moodle-2.8.9-1.fc22 (2015-2ebdd4ad8f)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124446 (Fedora Security Update for moodle (FEDORA-2015-98)).

Upgrading to version 2.7.10, 2.8.9 or 2.9.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 20159.

The vulnerability is also documented in the databases at Tenable (89194), SecurityFocus (BID 77604†) and Vulnerability Center (SBV-57661†). The entries VDB-81052, VDB-81053, VDB-81054 and VDB-81055 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Learning Management Software

Name

• Moodle

Version

• 2.6.0
• 2.6.1
• 2.6.2
• 2.6.3
• 2.6.4
• 2.6.5
• 2.6.6
• 2.6.7
• 2.6.8
• 2.6.9
• 2.6.10
• 2.6.11
• 2.7.0
• 2.7.1
• 2.7.2
• 2.7.3
• 2.7.4
• 2.7.5
• 2.7.6
• 2.7.7
• 2.7.8
• 2.7.9
• 2.7.10
• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7
• 2.8.8
• 2.9.0
• 2.9.1
• 2.9.2

License

• open-source

Website

• Product: https://moodle.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.1
VulDB Temp Score: 5.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 89194
Nessus Name: Fedora 22 : moodle-2.8.9-1.fc22 (2015-2ebdd4ad8f)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for moodle FEDORA-2015-2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Moodle 2.7.10/2.8.9/2.9.3
TippingPoint: 🔍

Timelineinfo

07/01/2015 🔍
11/16/2015 +138 days 🔍
11/16/2015 +0 days 🔍
12/11/2015 +25 days 🔍
02/22/2016 +73 days 🔍
02/22/2016 +0 days 🔍
02/23/2016 +1 days 🔍
03/04/2016 +10 days 🔍
03/23/2016 +19 days 🔍
07/08/2022 +2298 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: FEDORA-2015-2ebdd4ad8f
Researcher: Andrew
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-5337 (🔍)
GCVE (CVE): GCVE-0-2015-5337
GCVE (VulDB): GCVE-100-81057
SecurityFocus: 77604 - Moodle CVE-2015-5337 Cross Site Scripting Vulnerability
Vulnerability Center: 57661 - Moodle XSS via a Crafted .swf File - CVE-2015-5337, Medium

See also: 🔍

Entryinfo

Created: 02/23/2016 09:41
Updated: 07/08/2022 10:50
Changes: 02/23/2016 09:41 (73), 02/02/2019 11:29 (13), 07/08/2022 10:50 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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