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Weblogic ServerApplication · Oracle

CVE-2020-14640

MEDIUM · 6.1 CVSS v3.1 Published 2020-07-15
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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 WebLogic Server product of Oracle Fusion Middleware (component: Sample apps). Supported versions that are affected are 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle WebLogic Server, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle WebLogic Server accessible data as well as unauthorized read access to a subset of Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

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

Vulnerability in Oracle WebLogic Server's sample applications allows unauthenticated remote attackers via HTTP to gain unauthorized read and limited write (update/insert/delete) access to some accessible data. Exploitation requires human interaction and targets the sample apps component.

MitigationRemove or disable the sample applications in Oracle WebLogic Server production deployments, and apply the Oracle critical patch update or upgrade to a fixed version.

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
Weblogic ServerApplication
Affected:= 12.1.3.0.0= 12.2.1.3.0= 12.2.1.4.0= 14.1.1.0.0

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
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 WebLogic Server version
    Check the installation directory for version files (e.g., product.properties, registry.xml) or log into the WebLogic Administration Console and view the 'About WebLogic Server' information from the 'Help' menu
    Affected if Version matches 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, or 14.1.1.0.0
  2. Locate sample application files
    Check the installation's 'samples' directory (typically <WLS_HOME>/samples) or search for known sample app WAR files such as 'examples' or 'demo' applications
    Affected if Sample application files or directories exist in the WebLogic installation
  3. Verify sample applications are deployed
    Log into the WebLogic Administration Console, navigate to 'Deployments' and review the list of deployed applications, or use WLST (WebLogic Scripting Tool) with the command 'ls('AppDeployments')' to list deployed applications
    Affected if Sample applications (such as 'examples', 'demo', or similar sample apps) appear in the deployed applications list with state 'Active'
  4. Confirm sample apps are accessible via HTTP
    Attempt to access sample application endpoints over HTTP (e.g., http://<host>:<port>/examples or http://<host>:<port>/demo) using a web browser or curl command
    Affected if The sample applications respond to HTTP requests and are publicly or internally accessible on HTTP listeners

You are affected if your WebLogic Server version is 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, or 14.1.1.0.0 AND sample applications are deployed and accessible via HTTP.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Remove or disable the sample applications in Oracle WebLogic Server production deployments, and apply the Oracle critical patch update or upgrade to a fixed version.

Fix this in Weblogic Server Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,280
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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-2020-14640 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
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