Insyde InsydeH2O privilege escalation | CVE-2022-32478

NAME
__________
Insyde InsydeH2O privilege escalation

Platforms Affected:


Risk Level:
7.5

Exploitability:
Unproven

Consequences:
Gain Privilege

DESCRIPTION
__________

Insyde InsydeH2O could allow a local authenticated attacker to gain elevated privileges on the system, caused by a time-of-check time-of-use (TOCTOU) race condition. By conducting DMA attacks on the IdeBusDxe buffer used by SMM and non-SMM code, an attacker could exploit this vulnerability to gain elevated privileges.

CVSS 3.0 Information
__________

Privileges Required:
High

User Interaction:
None

Scope:
Changed

Access Vector:
Local


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