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.

IoT
6/1/2020
03:35 PM
50%
50%

26 IoT Flaws Enable Denial-of-Service Attacks, Privilege Escalation

Research details vulnerabilities in the Zephyr Real Time Operating Systems and MCUboot, both used in IoT devices and sensors.

Newly discovered vulnerabilities in Internet of Things (IoT) components could expose a range of connected devices to denial-of-service (DoS) attacks and privilege escalation, a researcher with NCC Group reports.

The report details 26 vulnerabilities in the Zephyr Real Time Operating Systems (RTOS), which is specifically designed for IoT applications, and MCUboot, an open source, hardware-independent bootloader seen as a "companion project" to Zephyr, said NCC Group technical director Jeremy Boone in a blog post on the research, which was conducted in January and February of 2020. 

Both of these components exist in a range of IoT sensors and devices including baby monitors, LEDs, smart wearables, and IoT wireless gateways. Zephyr RTOS is supported by several major vendors including Intel, NXP, Nordic Semiconductor, and Texas Instruments; it also supports a wide range of chipset architectures and development kits. 

NCC Group discovered 25 vulnerabilities affecting the Zephyr RTOS and one affecting MCUboot. Researchers found both locally and remotely exploitable memory corruption flaws, multiple paths that could let a compromised user application to escalate privilege to kernel mode, and multiple weaknesses in the design of certain exploit mitigation systems that exist in the kernel.

As of the research publication date, 15 of these 26 problems have been addressed.

"The remaining unpatched findings pose a low overall risk as they represent denial of service vulnerabilities, or opportunities to further harden the kernel by improving existing exploit mitigation systems," the report states. Zephyr has indicated to NCC Group that these lower-risk issues are outside the 90-day embargo policy and they will address them in a future release. 

Read more details and download the full findings here.

 
 
 
 
 
 
Learn from industry experts in a setting that is conducive to interaction and conversation about how to prepare for that "really  bad day" in cybersecurity. Click for more information and to register
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
 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 7/13/2020
Omdia Research Launches Page on Dark Reading
Tim Wilson, Editor in Chief, Dark Reading 7/9/2020
Russian Cyber Gang 'Cosmic Lynx' Focuses on Email Fraud
Kelly Sheridan, Staff Editor, Dark Reading,  7/7/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Special Report: Computing's New Normal, a Dark Reading Perspective
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
The Threat from the Internetand What Your Organization Can Do About It
The Threat from the Internetand What Your Organization Can Do About It
This report describes some of the latest attacks and threats emanating from the Internet, as well as advice and tips on how your organization can mitigate those threats before they affect your business. Download it today!
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-14300
PUBLISHED: 2020-07-13
The docker packages version docker-1.13.1-108.git4ef4b30.el7 as released for Red Hat Enterprise Linux 7 Extras via RHBA-2020:0053 (https://access.redhat.com/errata/RHBA-2020:0053) included an incorrect version of runc that was missing multiple bug and security fixes. One of the fixes regressed in th...
CVE-2020-14298
PUBLISHED: 2020-07-13
The version of docker as released for Red Hat Enterprise Linux 7 Extras via RHBA-2020:0053 advisory included an incorrect version of runc missing the fix for CVE-2019-5736, which was previously fixed via RHSA-2019:0304. This issue could allow a malicious or compromised container to compromise the co...
CVE-2020-15050
PUBLISHED: 2020-07-13
An issue was discovered in the Video Extension in Suprema BioStar 2 before 2.8.2. Remote attackers can read arbitrary files from the server via Directory Traversal.
CVE-2020-10987
PUBLISHED: 2020-07-13
The goform/setUsbUnload endpoint of Tenda AC15 AC1900 version 15.03.05.19 allows remote attackers to execute arbitrary system commands via the deviceName POST parameter.
CVE-2020-10988
PUBLISHED: 2020-07-13
A hard-coded telnet credential in the tenda_login binary of Tenda AC15 AC1900 version 15.03.05.19 allows unauthenticated remote attackers to start a telnetd service on the device.