CVE-2018-6433
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 · uneditedA vulnerability in the secryptocfg export command of Brocade Fabric OS versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow a local attacker to bypass the export file access restrictions and initiate a file copy from the source to a remote system.
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 confidenceA local authorization bypass vulnerability exists in the secryptocfg export command of Brocade Fabric OS. The flaw allows a local attacker to bypass export file access restrictions and initiate arbitrary file copies from the device to a remote system. This enables unauthorized data exfiltration from the storage area network device.
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>= 7.4.2, < 7.4.2d>= 8.0.2, < 8.0.2f>= 8.1.2, < 8.1.2f>= 8.2.0, < 8.2.1CVSS 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
- None
- Availability
- None
CVSS:3.0/AV:L/AC:L/PR:L/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 Fabric OS versionLog into the Brocade device CLI and run 'version' or 'firmwareShow' to retrieve the installed Fabric OS versionAffected if The displayed version falls within any of these vulnerable ranges: 7.4.2 through 7.4.2d (excluding 7.4.2d), 8.0.2 through 8.0.2f (excluding 8.0.2f), 8.1.2 through 8.1.2f (excluding 8.1.2f), or 8.2.0 through 8.2.1 (excluding 8.2.1)
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Confirm secryptocfg command availabilityRun 'secryptocfg --help' or 'help secryptocfg' in the CLI to verify the secryptocfg command is present and accessible on the deviceAffected if The secryptocfg command is available and supports the export subcommand
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Verify export functionality is accessibleAttempt to view the secryptocfg command syntax with 'secryptocfg export' or check if the export operation can be initiated by a user with limited privilegesAffected if Users with restricted permissions can execute the secryptocfg export command and specify arbitrary file paths for exfiltration
A device is affected if it runs a Fabric OS version within the vulnerable ranges listed AND the secryptocfg export command is accessible to local users, allowing unauthorized file copies to remote systems.
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 data7.4.2d8.0.2f8.1.2f
Upgrade Brocade Fabric OS to version 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d or later to patch the secryptocfg export command vulnerability. Restrict physical and console access to the fabric OS devices as a defense-in-depth measure.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-6433 — 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-2018-6433 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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- Version or environment caveats, and links to real fixes
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