high7.5
CVE-2020-5953
A vulnerability exists in System Management Interrupt (SWSMI) handler of InsydeH2O UEFI Firmware code located in SWSMI handler that dereferences gRT (EFI_RUNTI…
Impact
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).
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Insyde | Insydeh2o | Versions 5.12.09.0074, 5.23.04.0045, 5.23.45.0023, 5.33.15.0034, 5.34.03.0029, 5.42.03.0010 |
| Siemens | Ruggedcom Ape1808 Firmware | All versions |
| Siemens | Simatic Field Pg M6 Firmware | All versions |
| Siemens | Simatic Ipc127e Firmware | All versions |
| Siemens | Simatic Ipc227g Firmware | All versions |
| Siemens | Simatic Ipc277g Firmware | All versions |
| Siemens | Simatic Itp1000 Firmware | All versions |
| Siemens | Simatic Ipc477e Pro Firmware | All versions |
| Siemens | Simatic Ipc627e Firmware | All versions |
| Siemens | Simatic Ipc647e Firmware | All versions |
| Siemens | Simatic Ipc677e Firmware | All versions |
| Siemens | Simatic Ipc847e Firmware | All versions |
References
- NVD record
- CVE.org record
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
- https://security.netapp.com/advisory/ntap-20220222-0005/
- https://www.insyde.com/products
- https://www.insyde.com/security-pledge
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
- https://security.netapp.com/advisory/ntap-20220222-0005/
- https://www.insyde.com/products
- https://www.insyde.com/security-pledge
- https://www.kb.cert.org/vuls/id/796611
- https://cert-portal.siemens.com/productcert/html/ssa-306654.html