AMI MegaRAC SP-X and OpenBMC
CVE-2023-34335
AMI BMC contains a vulnerability in the IPMI handler, where an unauthenticated host is allowed to write to a host SPI flash, bypassing secure boot protections. An exploitation of this vulnerability may lead to a loss of integrity or denial of service.
Affected versions (NVD)
| Product | Versions |
|---|---|
| megarac_spx | >= 12.0, < 12.7 |
| megarac_spx | >= 13.0, < 13.5 |
What to do
NVD marks firmware before these versions as affected: megarac_spx before 12.7; megarac_spx before 13.5. The usual fix is to update to that version or later. Vendors patch each firmware branch separately, so confirm the fixed build for your branch in the advisory.
Vendor advisory (from the NVD record): 9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Adviso · 9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Adviso.
Do you run it?
Paste your BMC's Redfish answers into the Redfish Inspector: it compares the firmware version with the NVD ranges, in your browser. Or scan every BMC with the free scan.
Source: NVD CVE-2023-34335. PWX for MegaRAC and OpenBMC
Run it on your own fleet
PWX Discover is free: the scan reads your fleet and lists what to fix, on your machine. PWX Monitor keeps watching every layer, from the tenant to the power rail, with attack paths and alerts in your SIEM. PWX Protect acts on the BMC. Start with a pilot.