Permission Validation Flaw in Artifex Ghostscript
CVE-2023-36664

7.8HIGH

Key Information:

Vendor

Artifex
Status
Ghostscript
Vendor
CVE Published:
25 June 2023

Badges

👾 Exploit Exists🟡 Public PoC📰 News Worthy

What is CVE-2023-36664?

A vulnerability exists in Artifex Ghostscript that improperly validates permissions for pipe devices, including those prefixed with %pipe% or containing the | character. This oversight may allow unauthorized access to sensitive system resources, elevating the risk of data exposure and exploitation by malicious actors.

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Deploy the Patch

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-2023-36664-Ghostscript-command-injection
Created by jakabakos

Scan_GhostScript
Created by winkler-winsen

CVE-2023-36664
Created by JeanChpt

News Articles

favicon imageThe Register

Bust this Ghostscript bug or risk a big breach, say experts

Infosec circles are awash with chatter about a vulnerability in Ghostscript some experts believe could be the cause of several major breaches in the coming months. Ghostscript is a Postscript and Adobe PDF...

References

https://bugs.ghostscript.com/show_bug.cgi?id=706761
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3B...
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3B...

EPSS Score

6% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 📰

    First article discovered by The Register

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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