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CVE-2022-35649 — Vulnerability in moodle/moodle — CVE Details

CRITICAL

Moodle PostScript Code Injection

Published July 26, 2022Updated April 24, 2024Source: osv

Summary

The vulnerability was found in Moodle, occurs due to improper input validation when parsing PostScript code. An omitted execution parameter results in a remote code execution risk for sites running GhostScript versions older than 9.50. Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Advisory Timeline

  • First published July 26, 2022 (1540 days ago).
  • Last revised April 24, 2024 — 638 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update moodle/moodle to 4.0.2 or later
composer require "moodle/moodle:^4.0.2"
Composer
Update moodle/moodle to 3.9.15 or later
composer require "moodle/moodle:^3.9.15"
Composer
Update moodle/moodle to 3.11.8 or later
composer require "moodle/moodle:^3.11.8"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (3)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
moodle/moodle
packagist
v4.0.0, v4.0.0-beta, v4.0.0-rc1, v4.0.0-rc2 (+3 more)4.0.2
moodle/moodle
packagist
v3.9.0, v3.9.0-beta, v3.9.0-rc1, v3.9.0-rc2 (+15 more)3.9.15
moodle/moodle
packagist
v3.11.0, v3.11.0-beta, v3.11.0-rc1, v3.11.0-rc2 (+7 more)3.11.8

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-20
    Improper Input ValidationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2022-35649?
Moodle PostScript Code Injection This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2022-35649?
CVE-2022-35649 affects moodle/moodle. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2022-35649 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-xp2f-9mx3-3c6p
BIT-moodle-2022-35649

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