Megarac Sp XOperating system · Ami

CVE-2023-25192

MEDIUM · 5.3 CVSS v3.1 Published 2023-02-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
62/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
AMI MegaRAC SPX devices allow User Enumeration through Redfish. The fixed versions are SPx12-update-7.00 and SPx13-update-5.00.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

AMI MegaRAC SPX devices contain a user enumeration vulnerability in the Redfish API. An unauthenticated remote attacker can send requests to the Redfish endpoint and differentiate between valid and invalid usernames based on varying HTTP response codes or timing differences, enabling username harvesting for subsequent attacks.

MitigationUpdate MegaRAC SPX firmware to versions SPx12-update-7.00 or SPx13-update-5.00 as provided by AMI. If immediate patching is not feasible, restrict network access to the Redfish management interface using firewalls or ACLs, and monitor for anomalous Redfish API access patterns.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Megarac Sp XOperating system
Affected:= 12= 13

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify MegaRAC SPX firmware version
    Access BMC web interface or use IPMI command 'ipmitool mc info' or 'ipmitool raw command' to retrieve firmware version information
    Affected if Firmware version shows SPX 12 or SPX 13 (versions prior to SPx12-update-7.00 or SPx13-update-5.00)
  2. Confirm Redfish API is network-accessible
    Attempt HTTP GET request to /redfish/v1 endpoint on the BMC IP address
    Affected if Redfish API responds to unauthenticated requests over the network
  3. Test for user enumeration via HTTP response codes
    Send POST requests to Redfish session endpoint (/redfish/v1/SessionService/Sessions) with different username values and observe HTTP status codes
    Affected if Different status codes (e.g., 401 vs 404 vs 400) returned for valid versus invalid usernames
  4. Test for user enumeration via timing differences
    Measure response time when authenticating with valid versus invalid usernames using repeated requests
    Affected if Noticeable timing differences in responses between valid and invalid username attempts

User is affected if MegaRAC SPX firmware is version 12 or 13 and the Redfish API is network-accessible, with enumeration possible via differing HTTP responses or timing gaps between valid/invalid usernames.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update MegaRAC SPX firmware to versions SPx12-update-7.00 or SPx13-update-5.00 as provided by AMI. If immediate patching is not feasible, restrict network access to the Redfish management interface using firewalls or ACLs, and monitor for anomalous Redfish API access patterns.

Recommended fix High confidence

SPx12-update-7.00 (for SPX v12) or SPx13-update-5.00 (for SPX v13)

  1. Identify the current MegaRAC SPX version (12 or 13) running on the device
  2. Obtain the corresponding firmware update package: SPx12-update-7.00 for version 12, or SPx13-update-5.00 for version 13
  3. Apply the firmware update through the device's standard update mechanism (Redfish UpdateService or web interface)
  4. After updating, verify the new firmware version is installed and the device is operational
  5. Confirm that the User Enumeration vulnerability through Redfish is no longer present by testing that user account responses are consistent (no different responses for valid vs invalid usernames)

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Megarac Sp X Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,640
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-25192 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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