Ghostscript 9.20 on Win32 Filename privileges management

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Ghostscript 9.20 on Win32. It has been declared as critical. This affects an unknown part of the component Filename Handler. The manipulation results in privileges management. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Ghostscript 9.20 on Win32 (Document Processing Software). It has been classified as critical. Affected is some unknown processing of the component Filename Handler. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 02/02/2017 by John Page (hyp3rlinx) as Ghostscript 9.20 Filename Command Execution as not defined mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. It is possible to launch the attack remotely. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed by John Page and been published immediately after the advisory. The exploit is shared for download at seclists.org. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Document Processing Software

Name

Ghostscript

Version

9.20

License

free

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: John Page
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

02/02/2017 🔍
02/02/2017 +0 days 🔍
02/08/2017 +6 days 🔍
08/11/2020 +1280 days 🔍

Sourcesinfo

Advisory: Ghostscript 9.20 Filename Command Execution
Researcher: John Page (hyp3rlinx)
Status: Not defined

GCVE (VulDB): GCVE-100-96648
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/08/2017 18:42
Updated: 08/11/2020 20:46
Changes: 02/08/2017 18:42 (44), 08/11/2020 20:46 (2)
Complete: 🔍
Cache ID: 216::103