Description
A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- insyde / insydeh2o5.3 – 5.34.44
- Siemens / ruggedcom_apr1808_firmware
- Siemens / simatic_field_pg_m5_firmware
- Siemens / simatic_field_pg_m6_firmware
- Siemens / simatic_ipc127e_firmware
- Siemens / simatic_ipc227g_firmware
- Siemens / simatic_ipc277g_firmware
- Siemens / simatic_ipc327g_firmware
- Siemens / simatic_ipc377g_firmware
- Siemens / simatic_ipc427e_firmware
- Siemens / simatic_ipc477e_firmware
- Siemens / simatic_ipc477e_pro_firmware
- Siemens / simatic_ipc627e_firmware
- Siemens / simatic_ipc647e_firmware
- Siemens / simatic_ipc677e_firmware
- Siemens / simatic_ipc847e_firmware
- Siemens / simatic_itp1000_firmware
Updated 16m ago · 8 sources