Code Injection in Azure Sphere - CVE-2021-28460
Published: April 13, 2021 / Updated: April 15, 2021
Vulnerability identifier: #VU52145
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-28460
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Azure Sphere
Azure Sphere
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in Azure Sphere within the kernel "pwm_ioctl_apply_state" functionality. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-28460
Install updates from vendor's website.