Microsoft Azure Sphere Normal World application /proc/thread-self/mem unsigned code execution vulnerability

Summary A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.07. A specially crafted shellcode can cause a process’ non-writable memory to be written. An attacker can execute a shellcode that modifies the program at runtime v...

Threat Source newsletter for Aug. 6, 2020

Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. We spend a lot of time talking about what you should do to keep your data safe, and how other organizations should be prepared for the worst. But what happens if the worst happens to you? In the latest Beers with Talos episode, we...

Microsoft Azure Sphere Normal World application /proc/self/mem unsigned code execution vulnerability

Summary A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.05. A specially crafted shellcode can cause a process’ non-writable memory to be written. An attacker can execute a shellcode that modifies the program at runtime v...

Microsoft Azure Sphere AF_AZSPIO socket memory corruption vulnerability

Summary A memory corruption vulnerability exists in the AFAZSPIO socket functionality of Microsoft Azure Sphere 20.05. A sequence of socket operations can cause a double-free and out-of-bounds read in the kernel. An attacker can write a shellcode to trigger this vulnerability. Tested Versions...

Microsoft Azure Sphere kernel message ring buffer Information Disclosure Vulnerability

Summary An information disclosure vulnerability exists in the kernel message ring buffer functionality of Microsoft Azure Sphere 20.05. Unprivileged users can access the kernel message ring buffer, which can potentially leak sensitive information, such as kernel or userland memory addresses. An...

Microsoft Azure Sphere Normal World application ptrace unsigned code execution vulnerability

Summary A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.05. A specially crafted shellcode can cause a process’ non-writable memory to be written. An attacker can execute a shellcode that uses the ptrace system call to...