Moodle up to 3.5.15/3.8.6/3.9.3/3.10.0 Messaging resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Moodle up to 3.5.15/3.8.6/3.9.3/3.10.0. The affected element is an unknown function of the component Messaging Handler. Such manipulation leads to resource consumption. This vulnerability is listed as CVE-2021-20185. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Moodle up to 3.5.15/3.8.6/3.9.3/3.10.0 (Learning Management Software). Affected by this issue is an unknown part of the component Messaging Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was presented 01/29/2021 as 417168. The advisory is available at moodle.org. This vulnerability is handled as CVE-2021-20185. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 3.5.16, 3.8.7, 3.9.4 or 3.10.1 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Moodle 3.5.16/3.8.7/3.9.4/3.10.1

Timelineinfo

12/17/2020 🔍
01/29/2021 +43 days 🔍
01/29/2021 +0 days 🔍
02/21/2021 +23 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: 417168
Status: Confirmed

CVE: CVE-2021-20185 (🔍)
GCVE (CVE): GCVE-0-2021-20185
GCVE (VulDB): GCVE-100-168878

Entryinfo

Created: 01/29/2021 11:22
Updated: 02/21/2021 11:28
Changes: 01/29/2021 11:22 (39), 02/21/2021 11:24 (5), 02/21/2021 11:28 (18)
Complete: 🔍
Cache ID: 216::103

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