Insyde InsydeH2O code execution | US-CERT VU#796611
NAME
Insyde InsydeH2O code execution
- Platforms Affected:
Insyde InsydeH2O 5.1
Insyde InsydeH2O 5.2
Insyde InsydeH2O 5.3
Insyde InsydeH2O 5.4
Insyde InsydeH2O 5.5
Insyde InsydeH2O 5.0 - Risk Level:
8.2 - Exploitability:
Unproven - Consequences:
Gain Access
DESCRIPTION
Insyde InsydeH2O could allow a local authenticated attacker to execute arbitrary code on the system, caused by improper validating the allocated table variables EFI_BOOT_SERVICES and EFI_RUNTIME_SERVICES when registering a SWSMI handler in SMM. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS 3.0 Information
- Privileges Required: High
- User Interaction: None
- Scope: Changed
- Access Vector: Local
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Refer to Insyde Web site for patch, upgrade or suggested workaround information. See References.
- Reference Link:
https://www.insyde.com/security-pledge - Reference Link:
https://support.lenovo.com/us/en/product_security/LEN-73436
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