Security Market Segment LS
Tuesday, 24 March 2020 11:06

Microsoft warns of Windows zero-day being exploited Featured

By
Microsoft warns of Windows zero-day being exploited Image by OpenClipart-Vectors from Pixabay

Microsoft has warned of a zero-day flaw in the Adobe Type Manager Library which is being actively exploited on Windows systems that are up-to-date.

A number of Windows versions are affected: Windows 10, Windows 8.1, Windows 7, Windows Server 2008, Windows Server 2012, Windows Server 2019, Windows Server, version 1803 (Server Core Installation), Windows Server, version 1903 (Server Core installation), and Windows Server, version 1909 (Server Core installation). A full list of the affected products can be seen here.

The company said in an advisory on Monday that there were vulnerabilities that could be exploited remotely, due to the way that the Windows Adobe Type Manager handled a specially crafted multi-master font in the Adobe Type 1 PostScript format.

An attacker would be able to exploit this flaw in a number of ways, one of them being by convincing a user to open a document that was made for this specific task or viewing it in the Windows Preview pane.

The company said a fix could only be expected by the next monthly patch release day, which is the second Tuesday in April.

"Updates that address security vulnerabilities in Microsoft software are typically released on Update Tuesday, the second Tuesday of each month," the company said.

"This predictable schedule allows for partner quality assurance and IT planning, which helps maintain the Windows ecosystem as a reliable, secure choice for our customers."

In the interim, Microsoft said it was recommending the disabling of the preview pane and details pane in Windows Explorer as a workaround. Another workaround was to disable the WebClient service and a third was to rename the ATMFD.DLL file.

Details of the workarounds are here. Microsoft did not specify who had discovered the vulnerability.

Asked for his comments on the vulnerability, former NSA hacker Jake Williams told iTWire: "Microsoft moved font processing out of kernel mode in after the RTM version of Windows 10. But prior to that, fonts were processed entirely in the kernel (which is as crazy as it sounds, but offered better performance).

"But because you can embed fonts in documents, this means that a font-processing vulnerability can give an attacker remote code execution.

"Interestingly, if the preview pane is enabled in Explorer, just clicking the document in the file explorer (without opening it) can give execution in some cases as well (I'm pretty sure that's the case here).

"The type of execution is dependent on the version of Windows, but this is pretty clutch for Windows 7 since there likely aren't patches coming for most orgs still using it."

DIGITAL MARKETING HAS NO SOCIAL DISTANCING OR TRAVEL RESTRICTIONS

As part of our Lead Machine Methodology we will help you get more leads, more customers and more business. Let us help you develop your digital marketing campaign

Digital Marketing is ideal in these tough times and it can replace face to face marketing with person to person marketing via the phone conference calls and webinars

Significant opportunity pipelines can be developed and continually topped up with the help of Digital Marketing so that deals can be made and deals can be closed

- Newsletter adverts in dynamic GIF slideshow formats

- News site adverts from small to large sizes also as dynamic GIF slideshow formats

- Guest Editorial - get your message out there and put your CEO in the spotlight

- Promotional News and Content - displayed on the homepage and all pages

- Leverage our proven event promotion methodology - The Lead Machine gets you leads

Contact Andrew our digital campaign designer on 0412 390 000 or via email andrew.matler@itwire.com

CONTACT US!

LAYER 1 ENCRIPTION A KEY TO CYBER-SECURITY SOLUTION

Security requirements such as confidentiality, integrity and authentication have become mandatory in most industries.

Data encryption methods previously used only by military and intelligence services have become common practice in all data transfer networks across all platforms, in all industries where information is sensitive and vital (financial and government institutions, critical infrastructure, data centres, and service providers).

Get the full details on Layer-1 encryption solutions straight from PacketLight’s optical networks experts.

This white paper titled, “When 1% of the Light Equals 100% of the Information” is a must read for anyone within the fiber optics, cybersecurity or related industry sectors.

To access click Download here.

DOWNLOAD!

Sam Varghese

website statistics

Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

VENDOR NEWS & EVENTS

REVIEWS

Recent Comments