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Integer overflows leave IoT, OT, medical gear vulnerable to heap-seeking missiles Share
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Microsoft has taken a look at memory management code used in a wide range of equipment, from industrial control systems to healthcare gear, and found it can be potentially exploited to hijack devices.
The Windows giant has urged folks to get the latest firmware releases that address the holes, and test and deploy them, if possible. And if not, take steps to segment devices on the network, monitor them, and reduce access to them to lessen the blow if a compromise occurs.
Drilling down to the nitty-gritty: Microsoft s Azure Defender for IoT security research group looked at memory allocation functions, such as
By Ryan Naraine on April 29, 2021
Security researchers at Microsoft are raising the alarm for multiple gaping security holes in a wide range of enterprise internet-connected devices, warning that the high-risk bugs expose businesses to remote code execution attacks.
According to an advisory from Redmond’s Azure Defender for IoT security research group, there are at least 25 documented vulnerabilities (CVEs) affecting a wide range of IoT and operational technology (OT) devices the industrial, medical, and enterprise networks.
Microsoft is calling the family of vulnerabilities
BadAlloc .
“Our research shows that memory allocation implementations written throughout the years as part of IoT devices and embedded software have not incorporated proper input validations. Without these input validations, an attacker could exploit the memory allocation function to perform a heap overflow, resulting in execution of malicious code on a target device,” Microsoft explained.