Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Vulnerabilities / Threats

Vulnerability Found In Intel CPU Caching

Flaw could allow attackers to remotely control Intel-based devices or extract data from memory

Two sets of researchers this week separately released papers about exploits for a vulnerability discovered in Intel's CPU caching mechanisms.

Joanna Rutkowska, who made a splash when she published the infamous "Blue Pill" rootkit two years ago, unveiled the new exploit in her blog yesterday, complete with a paper describing how it works.

Separately, researcher Loic Duflot presented a paper on the same vulnerability yesterday at the CanSecWest conference. Rutkowska gives Duflot the credit for creating the first exploit of the vulnerability.

In a nutshell, the exploits describe ways in which an attacker might use flaws in Intel's CPU caching technology to access the memory of an Intel-based machine, or to gain remote control of that machine. This is the third vulnerability that Rutkowska's Invisible Things Lab has discovered in the Intel processor in the past 10 months; she presented a paper on weaknesses in the Intel Trusted Execution Technology (TXT) at the Black Hat DC conference last month.

"It seems that the current state of firmware security, even in case of such reputable vendors as Intel, is quite unsatisfying," Rutkowska said in her blog.

Intel has been informed of the vulnerabilities, the researchers said, though it is not clear when patches might be forthcoming.

Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message Tim Wilson is Editor in Chief and co-founder of Dark Reading.com, UBM Tech's online community for information security professionals. He is responsible for managing the site, assigning and editing content, and writing breaking news stories. Wilson has been recognized as one ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 9/21/2020
Cybersecurity Bounces Back, but Talent Still Absent
Simone Petrella, Chief Executive Officer, CyberVista,  9/16/2020
Meet the Computer Scientist Who Helped Push for Paper Ballots
Kelly Jackson Higgins, Executive Editor at Dark Reading,  9/16/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Latest Comment: Exactly
Current Issue
Special Report: Computing's New Normal
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
How IT Security Organizations are Attacking the Cybersecurity Problem
How IT Security Organizations are Attacking the Cybersecurity Problem
The COVID-19 pandemic turned the world -- and enterprise computing -- on end. Here's a look at how cybersecurity teams are retrenching their defense strategies, rebuilding their teams, and selecting new technologies to stop the oncoming rise of online attacks.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-7734
PUBLISHED: 2020-09-22
All versions of package cabot are vulnerable to Cross-site Scripting (XSS) via the Endpoint column.
CVE-2020-6564
PUBLISHED: 2020-09-21
Inappropriate implementation in permissions in Google Chrome prior to 85.0.4183.83 allowed a remote attacker to spoof the contents of a permission dialog via a crafted HTML page.
CVE-2020-6565
PUBLISHED: 2020-09-21
Inappropriate implementation in Omnibox in Google Chrome on iOS prior to 85.0.4183.83 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.
CVE-2020-6566
PUBLISHED: 2020-09-21
Insufficient policy enforcement in media in Google Chrome prior to 85.0.4183.83 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
CVE-2020-6567
PUBLISHED: 2020-09-21
Insufficient validation of untrusted input in command line handling in Google Chrome on Windows prior to 85.0.4183.83 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.