AMI MegaRAC SP-X and OpenBMC
CVE-2022-2809
A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. When fuzzing the multipart_parser code using AFL++ with address sanitizer enabled to find smallest memory corruptions possible. It detected problem in how multipart_parser handles unclosed http headers. If long enough http header is passed in the multipart form without colon there is one byte overwrite on heap. It can be conducted multiple times in a loop to cause DoS.
Affected versions (NVD)
| Product | Versions |
|---|---|
| openbmc | >= 2.10.0, <= 2.13.0 |
What to do
NVD gives no version range for this CVE yet, so this page cannot name an update version. Read the vendor advisory for the fixed firmware.
NVD names no vendor advisory for it. Look it up at AMI and OpenBMC security advisories (search for CVE-2022-2809).
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-2022-2809. 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.