Cloudline Cl3100 Gen10 Server FirmwareOperating system · Hpe

CVE-2021-25124

HIGH · 7.8 CVSS v3.1 Published 2021-01-29
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
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
The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE Cloudline CL4100 Gen10 Server; HPE Cloudline CL3100 Gen10 Server; HPE Cloudline CL5800 Gen10 Server BMC firmware has a local spx_restservice deletevideo_func function path traversal vulnerability.

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

The HPE Cloudline BMC firmware contains a path traversal vulnerability in the spx_restservice deletevideo_func function. This local vulnerability allows an authenticated local attacker to manipulate file paths using traversal sequences (e.g., ../) to access or delete files outside the intended directory, potentially leading to unauthorized file system access or denial of service.

MitigationApply the HPE firmware update for affected Cloudline CL5800 Gen9, CL5200 Gen9, CL4100 Gen10, CL3100 Gen10, and CL5800 Gen10 servers. Schedule maintenance window for BMC firmware update and verify BMC functionality post-patch.

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
Cloudline Cl3100 Gen10 Server FirmwareOperating system
Affected:= 1.08.0.0= 1.10.0.0
Cloudline Cl4100 Gen10 Server FirmwareOperating system
Affected:= 1.08.0.0= 1.10.0.0
Cloudline Cl5200 Gen9 Server FirmwareOperating system
Affected:= 1.07.0.0
Cloudline Cl5800 Gen10 Server FirmwareOperating system
Affected:= 1.08.0.0
Cloudline Cl5800 Gen9 Server FirmwareOperating system
Affected:= 1.09.0.0

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

CVSS:3.1/AV:L/AC:L/PR:L/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 HPE Cloudline server model
    Check server model via BMC web interface, IPMI command 'ipmitool -I lanplus -H <bmc_ip> -U <user> -P <pass> fru print' or physically label
    Affected if Model is CL3100 Gen10, CL4100 Gen10, CL5200 Gen9, CL5800 Gen10, or CL5800 Gen9
  2. Retrieve BMC firmware version
    Access BMC web interface firmware info page, or use IPMI command 'ipmitool -I lanplus -H <bmc_ip> -U <user> -P <pass> mc info'
    Affected if Version matches 1.08.0.0, 1.10.0.0 (CL3100/CL4100), 1.07.0.0 (CL5200), 1.08.0.0 (CL5800 Gen10), or 1.09.0.0 (CL5800 Gen9)
  3. Verify spx_restservice is exposed
    Check if REST API service is accessible on BMC, typically port 443 or 80. Attempt curl https://<bmc_ip>/api to confirm service availability
    Affected if The spx_restservice is reachable and responds to API requests
  4. Confirm authentication method available
    Verify valid BMC credentials exist or can be obtained. Test API access with: curl -k -X POST https://<bmc_ip>/api/session -d 'username=admin&password=<pass>'
    Affected if Attacker can obtain valid session token for the BMC interface

User is affected if running any of the listed Cloudline models with the specific firmware versions AND the BMC REST service is accessible with valid credentials.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the HPE firmware update for affected Cloudline CL5800 Gen9, CL5200 Gen9, CL4100 Gen10, CL3100 Gen10, and CL5800 Gen10 servers. Schedule maintenance window for BMC firmware update and verify BMC functionality post-patch.

Fix this in Cloudline Cl3100 Gen10 Server Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,820
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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-2021-25124 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
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