Sharefile Storagezones ControllerApplication · Citrix

CVE-2020-7473

HIGH · 7.5 CVSS v3.1 Published 2020-05-07
Fix available
A fix is available. Upgrade to after 5.5.0 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable 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
In certain situations, all versions of Citrix ShareFile StorageZones (aka storage zones) Controller, including the most recent 5.10.x releases as of May 2020, allow unauthenticated attackers to access the documents and folders of ShareFile users. NOTE: unlike most CVEs, exploitability depends on the product version that was in use when a particular setup step was performed, NOT the product version that is in use during a current assessment of a CVE consumer's product inventory. Specifically, the vulnerability can be exploited if a storage zone was created by one of these product versions: 5.9.0, 5.8.0, 5.7.0, 5.6.0, 5.5.0, or earlier. This CVE differs from CVE-2020-8982 and CVE-2020-8983 but has essentially the same risk.

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

Citrix ShareFile StorageZones Controller allows unauthenticated attackers to access user documents and folders in certain configurations. The vulnerability is triggered specifically when storage zones were originally created using product versions 5.9.0 through 5.5.0 (or earlier), regardless of the current version deployed. This is a version-specific setup flaw rather than a current-code vulnerability.

MitigationOrganizations must identify storage zones created with vulnerable versions (5.5.0-5.9.0) and recreate them using a patched version, or apply vendor-provided remediation to address the authentication bypass.

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
Sharefile Storagezones ControllerApplication
Affected:<= 5.5.0= 5.6.0= 5.7.0= 5.8.0= 5.9.0

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the StorageZones Controller version currently deployed
    Check the installed version of Citrix ShareFile StorageZones Controller in the system inventory, control panel, or using the ShareFile administrative interface under the StorageZones Controller settings page.
    Affected if Current version is 5.9.0, 5.8.0, 5.7.0, 5.6.0, or 5.5.0 or earlier, or if the current version is unknown.
  2. Determine the original creation version of each storage zone
    Review storage zone metadata or migration history in the StorageZones Controller admin console to identify which version was used when the zone was initially created. Look for records of zone creation date and source version, or check upgrade/migration logs.
    Affected if Any storage zone was originally created using versions 5.5.0 through 5.9.0, regardless of the current version or patches applied.
  3. Verify if storage zones were upgraded from vulnerable versions
    Check the upgrade or migration history for each storage zone in the administrative interface. Look for any indication that zones were initially provisioned with vulnerable versions and then upgraded in place.
    Affected if Storage zones were provisioned with versions 5.5.0-5.9.0 at any point, even if subsequently upgraded.
  4. Review storage zone authentication configuration
    Examine the authentication settings for each storage zone in the StorageZones Controller configuration. Specifically check whether the zone is configured to accept unauthenticated requests or has default/weak authentication settings.
    Affected if Storage zones with origins in versions 5.5.0-5.9.0 retain the vulnerable authentication configuration.

The environment is affected if any storage zone was originally created using Citrix ShareFile StorageZones Controller versions 5.5.0 through 5.9.0, regardless of the current version deployed.

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
Upgrade available Upgrade to a release after 5.5.0
Interim mitigation

Organizations must identify storage zones created with vulnerable versions (5.5.0-5.9.0) and recreate them using a patched version, or apply vendor-provided remediation to address the authentication bypass.

Fix this in Sharefile Storagezones Controller Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,980
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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-2020-7473 in production — separate from our analysis above.

No notes yet

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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