Moodle up to 3.5.15/3.8.6/3.9.3/3.10.0 Shibboleth Authentication code injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Moodle up to 3.5.15/3.8.6/3.9.3/3.10.0. This affects an unknown function of the component Shibboleth Authentication. Executing a manipulation can lead to code injection. This vulnerability is registered as CVE-2021-20187. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Moodle up to 3.5.15/3.8.6/3.9.3/3.10.0 (Learning Management Software) and classified as critical. This vulnerability affects an unknown code block of the component Shibboleth Authentication. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 01/29/2021 as 417171. The advisory is shared for download at moodle.org. This vulnerability was named CVE-2021-20187. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.

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: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
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: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
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: 417171
Status: Confirmed

CVE: CVE-2021-20187 (🔍)
GCVE (CVE): GCVE-0-2021-20187
GCVE (VulDB): GCVE-100-168880

Entryinfo

Created: 01/29/2021 11:23
Updated: 02/21/2021 11:48
Changes: 01/29/2021 11:23 (39), 02/21/2021 11:44 (5), 02/21/2021 11:48 (18)
Complete: 🔍
Cache ID: 216::103

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