vulnerability

Aruba AOS-8: CVE-2020-5953: SMM Privilege Escalation Vulnerability

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Feb 1, 2022
Added
Jan 14, 2025
Modified
Apr 2, 2026

Description

A vulnerability exists in System Management Interrupt (SWSMI) handler of InsydeH2O UEFI Firmware code located in SWSMI handler that dereferences gRT (EFI_RUNTIME_SERVICES) pointer to call a GetVariable service, which is located outside of SMRAM. This can result in code execution in SMM (escalating privilege from ring 0 to ring -2).

Solution

aruba-aos-8-cve-2020-5953
Title
Rapid7 Labs

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