Vulnerabilities / Threats

4/13/2018
04:14 PM
50%
50%

Power Line Vulnerability Closes Air Gap

A new demonstration of malware shows that air-gapped computers may still be at risk.

Security professionals love to talk about the "air gap" as the ultimate in safety for a computer: When it's not attached to network cables or a wireless network, it's presumed to be safe. Presumed, that is, until now. This week, researchers from the Ben-Gurion University of the Negev announced that they have come up with a way to exfiltrate data from air-gapped computers via malware that can control the computer's power consumption.

By adding workload to CPU cores that aren't doing anything else, the malware will change how much power (how many watts) the computer is using. Done carefully, the result is, essentially, an FM transmission over the power line. When a probe is placed near the power cable, the modulation can be detected and decoded — and information will have left the system.

The researchers call the malware that controls the power consumption PowerHammer; so far, it's a research proof-of-concept that hasn't been seen in the wild. That's good, because while ways to thwart a PowerHammer-like attack exist, none are perfect.

PowerHammer isn't the first time control or information signals have been sent over power lines. Electric motors are frequently controlled via pulse-width modulation (PWM) sent over the power lines, building control systems have used power-line carriers, and some electrical utilities have experimented with broadband internet access over power lines. This is, however, a reminder that capabilities can be used by individuals and groups with many different agendas.

For more, read here.

Interop ITX 2018

Join Dark Reading LIVE for a two-day Cybersecurity Crash Course at Interop ITX. Learn from the industry’s most knowledgeable IT security experts. Check out the agenda here. Register with Promo Code DR200 and save $200.

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Veterans Find New Roles in Enterprise Cybersecurity
Kelly Sheridan, Staff Editor, Dark Reading,  11/12/2018
Understanding Evil Twin AP Attacks and How to Prevent Them
Ryan Orsi, Director of Product Management for Wi-Fi at WatchGuard Technologies,  11/14/2018
7 Free (or Cheap) Ways to Increase Your Cybersecurity Knowledge
Curtis Franklin Jr., Senior Editor at Dark Reading,  11/15/2018
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Flash Poll
Online Malware and Threats: A Profile of Today's Security Posture
Online Malware and Threats: A Profile of Today's Security Posture
This report offers insight on how security professionals plan to invest in cybersecurity, and how they are prioritizing their resources. Find out what your peers have planned today!
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2018-19327
PUBLISHED: 2018-11-17
An issue was discovered in JTBC(PHP) 3.0.1.7. aboutus/manage.php?type=action&action=add allows CSRF.
CVE-2018-19328
PUBLISHED: 2018-11-17
LAOBANCMS 2.0 allows install/mysql_hy.php?riqi=../ Directory Traversal.
CVE-2018-19329
PUBLISHED: 2018-11-17
GreenCMS v2.3.0603 allows remote authenticated administrators to delete arbitrary files by modifying a base64-encoded pathname in an m=admin&c=media&a=delfilehandle&id= call, related to the m=admin&c=media&a=restorefile delete button.
CVE-2018-19331
PUBLISHED: 2018-11-17
An issue was discovered in S-CMS v1.5. There is a SQL injection vulnerability in search.php via the keyword parameter.
CVE-2018-19332
PUBLISHED: 2018-11-17
An issue was discovered in S-CMS v1.5. There is a CSRF vulnerability that can add a new user via the admin/ajax.php?type=member&action=add URI.