Connect with us

Hi, what are you looking for?


Cloud Security

‘USB Over Ethernet’ Driver Vulnerabilities Affected Major Cloud Services

Potentially serious vulnerabilities identified in a library developed by Eltima affected multiple cloud services, according to endpoint security company SentinelOne.

Potentially serious vulnerabilities identified in a library developed by Eltima affected multiple cloud services, according to endpoint security company SentinelOne.

The issues were identified in an Eltima product called ‘USB Over Ethernet’, which provides remote USB redirection functionality and which is implemented in some cloud products with several modifications.

In Amazon WorkSpaces, SentinelOne’s SentinelLabs explains, the library allows users to redirect USB devices so they can connect them directly from a remote desktop.

Responsible for the redirection are two drivers that are flawed, and which might have been vulnerable since the beginning of 2020, SentinelLabs researchers say.

SentinelLabs discovered the security holes in I/O Control (IOCTL) handlers in charge of “validating, probing, locking, and mapping the buffer itself depending on the use case,” and which are the same across all vulnerable products.

Because of the manner in which the handlers are used and because no buffer verification exists, malicious attackers could look for double fetches and arbitrary pointer dereference, which in turn could lead to other vulnerabilities.

“These vulnerabilities allow attackers to escalate privileges enabling them to disable security products, overwrite system components, corrupt the operating system, or perform malicious operations unimpeded,” the security researchers explain.

Advertisement. Scroll to continue reading.

SentinelLabs reported the vulnerabilities to the vendors in the second quarter of the year, which has resulted in a total of 27 CVE identifiers being issued.

Affected products include Amazon’s Nimble Studio AMI, NICE DCV, WorkSpaces, and AppStream client; Accops’ HyWorks Client and HyWorks DVM Tools for Windows; Amzetta zPortal (Windows client and DVM Tools); Donglify; Eltima USB Network Gate; FlexiHub; and NoMachine.

Security updates have been released to patch all of the identified vulnerabilities, with some of the fixes being automatically applied.

SentinelLabs says that, while its testing was limited to a handful of vendors, others relying on the same vulnerable libraries might be impacted as well. However, none of the flaws appears to be exploited in malicious attacks.

Related: Researchers Find 226 Vulnerabilities in Nine Wi-Fi Routers

Related: CISA Lists 300 Exploited Vulnerabilities That Organizations Need to Patch

Related: BrakTooth: New Bluetooth Vulnerabilities Could Affect Millions of Devices

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

SecurityWeek’s Threat Detection and Incident Response Summit brings together security practitioners from around the world to share war stories on breaches, APT attacks and threat intelligence.


Securityweek’s CISO Forum will address issues and challenges that are top of mind for today’s security leaders and what the future looks like as chief defenders of the enterprise.


Expert Insights

Related Content

Application Security

Cycode, a startup that provides solutions for protecting software source code, emerged from stealth mode on Tuesday with $4.6 million in seed funding.


Less than a week after announcing that it would suspended service indefinitely due to a conflict with an (at the time) unnamed security researcher...

Data Breaches

OpenAI has confirmed a ChatGPT data breach on the same day a security firm reported seeing the use of a component affected by an...

Risk Management

The supply chain threat is directly linked to attack surface management, but the supply chain must be known and understood before it can be...


The latest Chrome update brings patches for eight vulnerabilities, including seven reported by external researchers.


Patch Tuesday: Microsoft warns vulnerability (CVE-2023-23397) could lead to exploitation before an email is viewed in the Preview Pane.


Apple has released updates for macOS, iOS and Safari and they all include a WebKit patch for a zero-day vulnerability tracked as CVE-2023-23529.

IoT Security

A group of seven security researchers have discovered numerous vulnerabilities in vehicles from 16 car makers, including bugs that allowed them to control car...