Megarac Sp XOperating system · Ami

CVE-2023-37294

HIGH · 8.8 CVSS v3.1 Published 2024-01-09
Fix available
A fix is available. Upgrade to 12.7 / 13.6 or later.
See remediation →
93/100
Remediation priority · Urgent
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’s SPx contains a vulnerability in the BMC where an Attacker may cause a heap memory corruption via an adjacent network. A successful exploitation of this vulnerability may lead to a loss of confidentiality, integrity, and/or availability.

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 · moderate confidence

AMI SPx Baseboard Management Controller (BMC) firmware contains a heap memory corruption vulnerability exploitable by an attacker with adjacent network access. The flaw allows memory corruption which could enable remote code execution or denial of service, impacting confidentiality, integrity, and availability of the managed server.

MitigationApply the vendor-supplied firmware patch for SPx BMC when available; until then, restrict network access to the BMC management interfaces and monitor for signs of exploitation.

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, < 12.7>= 13, < 13.6

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
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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 BMC firmware version
    Query the BMC for its firmware version using IPMI (e.g., `ipmitool -I lanplus -H <bmc-ip> -U <user> fru print` or via the BMC web interface under Firmware/Version information)
    Affected if The displayed version falls within 12.0 to 12.6 or 13.0 to 13.5 (i.e., >= 12 but < 12.7, or >= 13 but < 13.6)
  2. Confirm the BMC is network accessible
    Verify that the BMC management interface (typically ports 443, 80, or 623 for IPMI) is reachable from the network by attempting to ping the BMC IP or checking open ports on the BMC
    Affected if The BMC is reachable from network segments beyond the trusted management VLAN, indicating adjacent network attack surface exists
  3. Check for unauthorized BMC accounts
    List all BMC user accounts via IPMI (e.g., `ipmitool -I lanplus -H <bmc-ip> -U <user> user list`) or through the BMC web interface to detect any unexpected accounts that may indicate exploitation
    Affected if New or unauthorized accounts exist that were not provisioned by administrators, which could be a sign of post-exploitation activity
  4. Review BMC event logs for anomalies
    Retrieve BMC SEL (System Event Log) using IPMI (e.g., `ipmitool -I lanplus -H <bmc-ip> -U <user> sel elist`) or via Redfish API to look for unexpected resets, memory errors, or authentication failures
    Affected if Logs contain unexplained BMC resets, heap corruption events, or mass authentication attempts aligned with the CVE disclosure date

A user is affected if their BMC firmware version is 12.x where x < 7, or 13.x where x < 6, and the BMC is network-accessible to adjacent attackers.

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
Upgrade available Upgrade to 12.7 / 13.6 or later
Fixed in 12.713.6
Interim mitigation

Apply the vendor-supplied firmware patch for SPx BMC when available; until then, restrict network access to the BMC management interfaces and monitor for signs of exploitation.

Recommended fix Moderate confidence

MegaRAC SPx firmware version 12.7 (for 12.x branch) or 13.6 (for 13.x branch) or later

  1. 1. Identify the current MegaRAC SPx firmware version running on the BMC by accessing the BMC web interface or using IPMI commands.
  2. 2. Obtain the fixed firmware version from the hardware vendor (the server OEM such as Dell, HP, Lenovo, etc. or AMI directly). The fixed versions are 12.7 or later for the 12.x branch, and 13.6 or later for the 13.x branch.
  3. 3. Follow the vendor's standard BMC firmware update procedure, which typically involves uploading the firmware binary through the BMC web interface or using tools like flashrom, ipmiutil, or the vendor's management utility.
  4. 4. After flashing, verify the new firmware version is installed and the BMC has rebooted successfully.
  5. 5. Validate that the BMC is operational and all management functions are working normally.
Caveat BMC firmware updates carry some risk of rendering the BMC unusable if interrupted; ensure stable power and follow vendor update procedures precisely

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

Fix this in Megarac Sp X Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
36.0 hours of engineering $6,400
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Scan for this in your stack

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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-2023-37294 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data