Credit: Thinkstock Eleven zero-day vulnerabilities in WindRiver’s VxWorks, a real-time operating system in use across an advertised 2 billion connected devices have been discovered by network security vendor Armis. Six of the vulnerabilities could enable remote attackers to access unpatched systems without any user interaction, even through a firewall according to Armis. The vulnerabilities affect all devices running VxWorks version 6.5 and later with the exception of VxWorks 7, issued July 19, which patches the flaws. That means the attack windows may have been open for more than 13 years. Armis Labs said that affected devices included SCADA controllers, patient monitors, MRI machines, VOIP phones and even network firewalls, specifying that users in the medical and industrial fields should be particularly quick about patching the software. Thanks to remote-code-execution vulnerabilities, unpatched devices can be compromised by a maliciously crafted IP packet that doesn’t need device-specific tailoring, and every vulnerable device on a given network can be targeted more or less simultaneously. The Armis researchers said that, because the most severe of the issues targets “esoteric parts of the TCP/IP stack that are almost never used by legitimate applications,” specific rules for the open source Snort security framework can be imposed to detect exploits. VxWorks, which has been in use since the 1980s, is a popular real-time OS, used in industrial, medical and many other applications that require extremely low latency and response time. While highly reliable, the inability to install a security agent alongside the operating system makes it vulnerable, said Armis, and the proprietary source code makes it more difficult to detect problems. Armis argued that more attention has to be paid by security researchers to real-time operating systems, particularly given the explosive growth in IoT usage – for one thing, the researchers said, any software that doesn’t get thoroughly researched runs a higher risk of having serious vulnerabilities go unaddressed. For another, the critical nature of many IoT use cases means that the consequences of a compromised device are potentially very serious. “It is inconvenient to have your phone put out of use, but it’s an entirely different story to have your manufacturing plant shut down,” the Armis team wrote. “A compromised industrial controller could shut down a factory, and a pwned patient monitor could have a life-threatening effect.” In addition to the six headlining vulnerabilities, five somewhat less serious security holes were found. These could lead to consequences ranging from denial of service and leaked information to logic flaws and memory issues. More technical details and a fuller overview of the problem can be found at the Armis Labs blog post here, and there are partial lists available of companies and devices that run VxWorks available on Wikipedia and at Wind River’s customer page. Wind River itself issued a security advisory here, which contains some potential mitigation techniques. Related content news Cisco steps up full-stack observability play with Splunk tie-ins Work has already begun to integrate Splunk, AppDynamics, and ThousandEyes as Cisco strengthens its observability lineup. By Michael Cooney Jun 07, 2024 5 mins Network Management Software Networking how-to Converting between uppercase and lowercase on the Linux command line Converting text between uppercase and lowercase can be very tedious, especially when you want to avoid inadvertent misspellings. Fortunately, Linux provides a handful of commands that can make the job very easy. By Sandra Henry Stocker Jun 07, 2024 5 mins Linux news Network jobs watch: Hiring, skills and certification trends What IT leaders need to know about expanding responsibilities, new titles and hot skills for network professionals and I&O teams. By Denise Dubie Jun 06, 2024 12 mins Careers Data Center Networking news Intel launches sixth-generation Xeon processor line With the new generation chips, Intel is putting an emphasis on energy efficiency. By Andy Patrizio Jun 06, 2024 3 mins CPUs and Processors Data Center PODCASTS VIDEOS RESOURCES EVENTS NEWSLETTERS Newsletter Promo Module Test Description for newsletter promo module. Please enter a valid email address Subscribe