Moodle 2.0/2.0.1/2.0.2 denial of service

EntryHistoryDiffjsonxmlCTI

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.
4.1	$0-$5k	0.00

A vulnerability classified as problematic has been found in Moodle 2.0/2.0.1/2.0.2 (Learning Management Software). This affects an unknown function. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Moodle 2.0.x before 2.0.3 allows remote authenticated users to cause a denial of service (invalid database records) via a series of crafted ratings operations.

The weakness was shared 07/16/2012 as MDL-26838 rating: multiple fixes after a review of rating validation code as confirmed git commit (GIT Repository). It is possible to read the advisory at git.moodle.org. This vulnerability is uniquely identified as CVE-2011-4291 since 11/04/2011. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. The technical details are unknown and an exploit is not publicly available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.moodle.org.

The entries 61302, 61301, 61300 and 61298 are related to this item.

Productinfo

Type

Learning Management Software

Name

Moodle

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

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

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: Denial of service
CWE: CWE-404
ATT&CK: T1499

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 34b5e856b0c98aab3f5317119093628df0834957

Timelineinfo

11/04/2011 🔍
07/16/2012 +255 days 🔍
07/16/2012 +0 days 🔍
03/23/2015 +980 days 🔍
12/06/2021 +2450 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: MDL-26838 rating: multiple fixes after a review of rating validation code
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4291 (🔍)
See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/06/2021 09:41
Changes: 03/23/2015 16:50 (49), 02/18/2019 14:59 (2), 12/06/2021 09:41 (3)
Complete: 🔍