CVE-2021-38930
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 · uneditedIBM System Storage DS8000 Management Console (HMC) R8.5 88.5x.x.x, R9.1 89.1x.0.0, and R9.2 89.2x.0.0 could allow a remote attacker to obtain sensitive information through unpublished URLs. IBM X-Force ID: 210331.
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· moderate confidenceThe IBM System Storage DS8000 Management Console (HMC) versions R8.5, R9.1, and R9.2 contains unpublished URLs that can be accessed by remote attackers, allowing them to obtain sensitive information. This is an information disclosure vulnerability where unauthenticated or low-privilege attackers can discover and access hidden web endpoints.
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= 88.50.0.0= 89.10.0.0= 89.20.0.0CVSS 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
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 checksWork through these to decide whether this CVE applies to you.
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Check the installed DS8000 HMC firmware versionAccess the IBM System Storage DS8000 Management Console web interface or use the HMC command-line interface to view the firmware version information. This is typically found in the system status or about section of the HMC.Affected if The installed firmware version is 88.50.0.0, 89.10.0.0, or 89.20.0.0 (exact match).
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Compare the firmware version to the affected rangesTake the version number identified in step 1 and compare it exactly against the three affected versions: 88.50.0.0, 89.10.0.0, and 89.20.0.0.Affected if The installed version exactly matches one of these three versions.
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Verify HMC network exposureDetermine if the DS8000 Management Console management interface is accessible from untrusted networks. Check firewall rules, network segmentation, and access control lists that govern who can reach the HMC web interface.Affected if The HMC interface is accessible from networks outside the trusted administrator network.
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Review HMC access logs for unpublished URL accessExamine the DS8000 HMC access logs for requests to undocumented or unpublished web endpoints. Look for unusual or unexpected URL patterns that were accessed.Affected if Evidence exists in logs of access to hidden or unpublished URLs that were not intended for public or low-privilege access.
A user is affected if their DS8000 Management Console firmware is exactly version 88.50.0.0, 89.10.0.0, or 89.20.0.0 and the HMC interface is accessible to untrusted users.
Generated from the published advisory. Verify against your own configuration.
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 dataApply the IBM fix/patch for this vulnerability when available. In the interim, restrict network access to the HMC management interface to only trusted networks and administrators, and review any access logs for suspicious requests to unpublished URLs.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-38930 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-38930 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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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