Vulnerability Spotlight: Multiple remote code execution vulnerabilities in Microsoft Azure Sphere

Summary: Cisco Talos researchers Claudio Bozzato and Lilith discovered four vulnerabilities in Microsoft Azure Sphere version 21.01 that could lead to unsigned code execution and kernel privilege escalation, affecting the mount namespace, Linux namespace ptrace, mqueue inode initialization, and kernel pwm_ioctl_apply_state functionality. Microsoft patched the issues in its March and April Patch Tuesday releases, and Talos published Snort rules 57139, 57140, 57166, 57167, 57266, 57267, 57186 and 57187 to detect exploitation attempts.
Why it matters: Azure Sphere exists to keep IoT devices locked down, and these four flaws let an attacker run unsigned code or escalate to kernel privileges on version 21.01 - the same platform Microsoft relies on to verify device integrity before granting cloud access.

Read the original at Cisco Talos ↗

Topics: Vulnerabilities & Patching
Mentions: CVE-2021-27047 CVE-2021-27080 CVE-2021-28460
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