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

Summary

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.

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...

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

.