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Storage Cloud Software ApplianceApplication · Oracle

CVE-2021-2256

CRITICAL · 10.0 CVSS v3.1 Published 2021-04-22
Fix available
A fix is available. Upgrade to 16.3.1.4.2 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

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
Vulnerability in the Oracle Storage Cloud Software Appliance product of Oracle Storage Gateway (component: Management Console). The supported version that is affected is Prior to 16.3.1.4.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Storage Cloud Software Appliance. While the vulnerability is in Oracle Storage Cloud Software Appliance, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Storage Cloud Software Appliance. Note: Updating the Oracle Storage Cloud Software Appliance to version 16.3.1.4.2 or later will address these vulnerabilities. Download the latest version of Oracle Storage Cloud Software Appliance from <a href=" https://www.oracle.com/downloads/cloud/oscsa-downloads.html">here. Refer to Document <a href="https://support.oracle.com/rstype=doc&id=2768897.1">2768897.1 for more details. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

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 confidence

Unauthenticated remote code execution vulnerability in the Management Console of Oracle Storage Cloud Software Appliance. The flaw allows unauthenticated attackers with network access via HTTP to completely compromise the affected system, granting full control over confidentiality, integrity, and availability.

MitigationUpgrade Oracle Storage Cloud Software Appliance to version 16.3.1.4.2 or later to address this vulnerability.

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
Storage Cloud Software ApplianceApplication
Affected:< 16.3.1.4.2

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
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 Oracle Storage Cloud Software Appliance installation
    Locate the appliance installation directory or check running services for Oracle Storage Cloud Software Appliance components. Look for processes named 'Oracle Storage Cloud' or related service binaries.
    Affected if The appliance is installed and running on the system
  2. Determine the installed version
    Access the Management Console web interface or check version files in the appliance installation directory. The version is typically displayed in the console header or available via /version endpoint.
    Affected if The version number cannot be determined or is below 16.3.1.4.2
  3. Verify Management Console HTTP accessibility
    Attempt to access the Management Console over HTTP using the appliance's network address (typically port 8080 or 8000). Use curl or a browser: curl http://<appliance-host>:<port>/
    Affected if The Management Console is reachable via HTTP from the network without authentication
  4. Compare version against vulnerable range
    If version is obtained, compare it to the affected range: any version below 16.3.1.4.2 is vulnerable.
    Affected if The installed version is lower than 16.3.1.4.2

The system is affected if Oracle Storage Cloud Software Appliance is running with the Management Console exposed via HTTP and the installed version is below 16.3.1.4.2.

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.

dbcve · scoped
Upgrade available Upgrade to 16.3.1.4.2 or later
Fixed in 16.3.1.4.2
Vendor patch www.oracle.com →
Interim mitigation

Upgrade Oracle Storage Cloud Software Appliance to version 16.3.1.4.2 or later to address this vulnerability.

Recommended fix High confidence

16.3.1.4.2 or later

  1. Navigate to the Oracle Storage Cloud Software Appliance downloads page at https://www.oracle.com/downloads/cloud/oscsa-downloads.html
  2. Download the latest version of Oracle Storage Cloud Software Appliance (version 16.3.1.4.2 or later)
  3. Review Oracle Support Document 2768897.1 for detailed upgrade instructions
  4. Back up current configuration data before performing the upgrade
  5. Apply the upgrade following Oracle's documented upgrade procedure for Storage Cloud Software Appliance
  6. After upgrade completes, verify the installed version is 16.3.1.4.2 or later via the Management Console or CLI
  7. Confirm the Management Console is accessible and functioning normally
Caveat Review Oracle documentation for any configuration changes required during upgrade; test in non-production environment first

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Storage Cloud Software Appliance Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,840
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,544.

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-2021-2256 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