dbcve.org
Outside In TechnologyApplication · Oracle

CVE-2021-2067

HIGH · 8.6 CVSS v3.1 Published 2021-01-20
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
95/100
Remediation priority · Urgent
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
Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Filters). Supported versions that are affected are 8.5.4 and 8.5.5. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Outside In Technology accessible data as well as unauthorized read access to a subset of Oracle Outside In Technology accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Outside In Technology. Note: Outside In Technology is a suite of software development kits (SDKs). The protocol and CVSS score depend on the software that uses the Outside In Technology code. The CVSS score assumes that the software passes data received over a network directly to Outside In Technology code, but if data is not received over a network the CVSS score may be lower. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L).

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

Vulnerability in Oracle Outside In Technology SDK filters (versions 8.5.4 and 8.5.5) allows unauthenticated attackers with network access via HTTP to create, delete, modify, or read data and cause partial denial of service. The vulnerability exists in the filter processing component that parses external data.

MitigationUpgrade Oracle Outside In Technology to a patched version beyond 8.5.5, and ensure any products passing network-received data to Outside In filters properly sanitize input before passing to the SDK.

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
Outside In TechnologyApplication
Affected:= 8.5.4= 8.5.5

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
Low
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

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 Outside In Technology SDK installation
    Search for the Outside In SDK installation directory, typically found under Oracle product paths or within application data folders. Look for files named 'OIT' or 'OutsideIn' in program directories, or check the application's third-party component list.
    Affected if The SDK version is 8.5.4 or 8.5.5 specifically.
  2. Determine the exact SDK version number
    Locate the version file or executable within the SDK installation directory. Common locations include: the main SDK folder, a 'version' or 'readme' file, or the executable properties if distributed as a standalone filter binary.
    Affected if The reported version equals 8.5.4 or 8.5.5.
  3. Verify filter processing component is active
    Check if the filter processing component is loaded or enabled in the application using the SDK. This may appear in running process lists, loaded module lists, or application configuration files that reference Outside In filters.
    Affected if The filter component is loaded and processing external data.
  4. Confirm network exposure of filter services
    Inspect network configuration, firewall rules, or application server settings to determine if HTTP-based access to the filter processing component is exposed externally. Look for web service endpoints or APIs that route data through the Outside In filters.
    Affected if The system accepts network-received data via HTTP for processing by the Outside In filters.

A user is affected if Oracle Outside In Technology SDK versions 8.5.4 or 8.5.5 are installed and the filter processing component is accessible to network-received data.

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

Upgrade Oracle Outside In Technology to a patched version beyond 8.5.5, and ensure any products passing network-received data to Outside In filters properly sanitize input before passing to the SDK.

Fix this in Outside In Technology Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA4.0 h
40.0 hours of engineering $7,000
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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-2021-2067 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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  • No spam, self-promotion, credentials, or personal data