Remote Code Execution Vulnerability in Moodle Affected by GhostScript Versions
CVE-2022-35649

9.8CRITICAL

Key Information:

Vendor

Moodle
Status
Moodle
Vendor
CVE Published:
25 July 2022

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2022-35649?

A vulnerability in Moodle arises from inadequate input validation during the processing of PostScript code. This flaw, linked to GhostScript versions older than 9.50, allows a remote attacker to exploit the missing execution parameter, posing a risk of remote code execution. If successfully exploited, an attacker could gain complete control over the affected system, making it crucial for administrators to upgrade to the latest version and review their GhostScript installations.

Affected Version(s)

Moodle Fixed in moodle 4.0.2, moodle 3.11.8, moodle 3.9.15

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2022-35649
Created by antoinenguyen-09

References

https://bugzilla.redhat.com/show_bug.cgi?id=2106273
x_refsource_MISC
https://moodle.org/mod/forum/discuss.php?d=436456
x_refsource_MISC
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=...
x_refsource_MISC

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.