What We Do
How we do it
Resources
TRU INTELLIGENCE CENTER
Our Threat Response Unit (TRU) publishes security advisories, blogs, reports, industry publications and webinars based on its original research and the insights driven through proactive threat hunts.
View Threat Intelligence Resources →
SECURITY ADVISORIES
Jun 01, 2023
Critical Vulnerability in MOVEit Transfer
THE THREAT eSentire is aware of reports relating to the active exploitation of a currently unnamed vulnerability impacting Progress Software’s managed file transfer software MOVEit Transfer.…
Read More
View all Advisories →
Company
ABOUT ESENTIRE
About Us
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 2000+ organizations in 80+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Read about how we got here
Leadership Work at eSentire
LATEST PRESS RELEASE
Mar 20, 2023
Exertis and eSentire Partner to Deliver 24/7 Multi-Signal MDR, Digital Forensics & IR Services and Exposure Management to Organisations Across the UK, Ireland, and Europe
Basingstoke, UK– 20 March, 2023. Leading technology distributor, Exertis, announced today that it has bolstered its cybersecurity services, adding eSentire, the Authority in Managed Detection and Response (MDR), to its Enterprise portfolio of offerings. eSentire’s award-winning, 24/7 multi-signal MDR, Digital Forensics & Incident Response (IR), and Exposure Management services will be available…
Read More
Partners
PARTNER PROGRAM
e3 Ecosystem
We provide sophisticated cybersecurity solutions for Managed Security Service Providers (MSSPs), Managed Service Providers (MSPs), and Value-Added Resellers (VARs). Find out why you should partner with eSentire, the Authority in Managed Detection and Response, today.
Learn more
ECOSYSTEM PARTNER RESOURCES
Apply to become an e3 ecosystem partner with eSentire, the Authority in Managed Detection and Response.
Login to the Partner Portal for resources and content for current partners.
Search
Resources
Security advisories — Feb 26, 2019

Ghostscript Vulnerability

1 minute read
Speak With A Security Expert Now

A vulnerability affecting the Ghostscript suite of software has been discovered and publicly released [1]. Ghostscript is an open source software based on Adobe Systems' PostScript and is widely used across the Windows, Linux and Apple machines. If exploited the vulnerability could allow a remote, unauthenticated threat actor to run commands, create files and delete or extract data. The exploitation of this vulnerability has not been seen in the wild at this time, but proof of concept code has been released [2]. It is likely that more widespread exploitation attempts will be seen in the near future.

What we’re doing about it

What you should do about it

Additional information

This attack is possible due to the implementation of the –dSAFER sandbox. The sandbox is meant to validate content but can be circumvented to allow malicious content through. The attack is carried out by sending a malformed file (PDF, PostScript, XPF or EPS); when the file reaches the Ghostcript interpreter it automatically executes and infects the host machine.

A potential short term fix for this vulnerability is to disable PS, EPS, PDF, and XPS coders. This is not recommended due to the high potential for business disruption. Due to the wide range of programs that rely on Ghostscript, this vulnerability should be taken seriously and patches should be applied as soon as vendors make them available.

Known Affected Systems:

Potentially Affected Systems:


References:

[1] https://kb.cert.org/vuls/id/332928

[2] http://openwall.com/lists/oss-security/2018/08/21/2

View Most Recent Blogs