Sandbox Bypass in Ghostscript by Artifex
CVE-2018-17961

8.6HIGH

Key Information:

Vendor

Artifex
Status
Ghostscript
Vendor
CVE Published:
15 October 2018

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 11%

What is CVE-2018-17961?

Artifex Ghostscript versions 9.25 and earlier are susceptible to a vulnerability that allows attackers to bypass the sandbox protection mechanism. This issue is linked to improper errorhandler setup, which was not adequately resolved following a previous fix. Exploitation of this vulnerability could permit unauthorized access or execution of unintended commands within the Ghostscript environment, potentially leading to further security breaches.

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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-2018-17961
Created by matlink

References

http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff...
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http://www.openwall.com/lists/oss-security/2018/10/09/4
mailing-listx_refsource_MLIST
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff...
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EPSS Score

11% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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