CVE-2020-5367
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 · uneditedDell EMC Unisphere for PowerMax versions prior to 9.1.0.17, Dell EMC Unisphere for PowerMax Virtual Appliance versions prior to 9.1.0.17, and PowerMax OS Release 5978 contain an improper certificate validation vulnerability. An unauthenticated remote attacker may potentially exploit this vulnerability to carry out a man-in-the-middle attack by supplying a crafted certificate and intercepting the victim's traffic to view or modify a victim's data in transit.
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 confidenceDell EMC Unisphere for PowerMax and PowerMax OS contain an improper certificate validation vulnerability where the system fails to properly verify SSL/TLS certificates during secure connections. This allows an unauthenticated remote attacker to perform a man-in-the-middle attack by presenting a crafted certificate, enabling interception and modification of data in transit.
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< 9.1.0.17< 9.1.0.17= 5978CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/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 checksWork through these to decide whether this CVE applies to you.
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Identify Unisphere for PowerMax versionAccess the Unisphere web interface or use the 'unisphere -version' CLI command to determine the installed version of Unisphere for PowerMaxAffected if Version is less than 9.1.0.17
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Identify Unisphere for PowerMax Virtual Appliance versionCheck the virtual appliance version through the vSphere client or by running 'get system info' from the appliance CLIAffected if Version is less than 9.1.0.17
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Identify PowerMax OS versionRun the 'sysctl -a' command or check the PowerMax management interface to retrieve the PowerMax OS release versionAffected if PowerMax OS version equals 5978 exactly
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Verify SSL/TLS is enabled for UnisphereCheck the Unisphere configuration settings or inspect the SSL/TLS service status via the Unisphere admin console under Security or Network settingsAffected if SSL/TLS is enabled and the version check shows an affected version in steps 1-3
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Inspect SSL certificate validation configurationReview the Unisphere configuration files or management interface for SSL certificate validation settings to confirm whether custom certificates or certificate chain validation is properly configuredAffected if Certificate validation is set to allow unverified or self-signed certificates without proper chain verification
A user is affected if they are running Unisphere for PowerMax or PowerMax Virtual Appliance versions below 9.1.0.17, or PowerMax OS version 5978, with SSL/TLS enabled and weak certificate validation configured.
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 data9.1.0.17
Upgrade Unisphere for PowerMax and Unisphere for PowerMax Virtual Appliance to version 9.1.0.17 or later, and apply the fix for PowerMax OS Release 5978 to address the certificate validation weakness.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-5367 — 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-2020-5367 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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