Dell iDRAC
CVE-2021-21543
Dell EMC iDRAC9 versions prior to 4.40.00.00 contain multiple stored cross-site scripting vulnerabilities. A remote authenticated malicious user with high privileges could potentially exploit these vulnerabilities to store malicious HTML or JavaScript code through multiple affected parameters. When victim users access the submitted data through their browsers, the malicious code gets executed by the web browser in the context of the vulnerable application.
Affected versions (NVD)
| Product | Versions |
|---|---|
| idrac9_firmware | < 4.40.00.00 |
What to do
NVD marks firmware before these versions as affected: idrac9_firmware before 4.40.00.00. 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): www.dell.com/support/kbdoc/000185293 · www.dell.com/support/kbdoc/000185293.
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-2021-21543. PWX for iDRAC
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.