CVE-2021-21809

A command execution vulnerability exists in the default legacy spellchecker plugin in Moodle 3.10. A specially crafted series of HTTP requests can lead to command execution. An attacker must have administrator privileges to exploit this vulnerabilities.

CVSS v3 9.1 CRITICAL
CVSS v2.0 9.0 HIGH

9.1^/10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

9.0^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://packetstormsecurity.com/files/164481/Moodle-SpellChecker-Path-Authenticated-Remote-Command-Execution.html	Exploit Third Party Advisory VDB Entry
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1277	Exploit Third Party Advisory
http://packetstormsecurity.com/files/164481/Moodle-SpellChecker-Path-Authenticated-Remote-Command-Execution.html	Exploit Third Party Advisory VDB Entry
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1277	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:moodle:moodle:3.10.0:-:*:*:*:*:*:*

History

21 Nov 2024, 05:49

Type	Values Removed	Values Added
References	~~() http://packetstormsecurity.com/files/164481/Moodle-SpellChecker-Path-Authenticated-Remote-Command-Execution.html - Exploit, Third Party Advisory, VDB Entry~~	() http://packetstormsecurity.com/files/164481/Moodle-SpellChecker-Path-Authenticated-Remote-Command-Execution.html - Exploit, Third Party Advisory, VDB Entry
References	~~() https://talosintelligence.com/vulnerability_reports/TALOS-2021-1277 - Third Party Advisory, Exploit~~	() https://talosintelligence.com/vulnerability_reports/TALOS-2021-1277 - Exploit, Third Party Advisory

Information

Published : 2021-06-23 22:15

Updated : 2024-11-21 05:49

NVD link : CVE-2021-21809

Mitre link : CVE-2021-21809

CVE.ORG link : CVE-2021-21809

JSON object : View

Products Affected

moodle

moodle

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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9.1 /10