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KnowledgeWeb browser · Oracle

CVE-2020-2791

CRITICAL · 9.8 CVSS v3.1 Published 2020-04-15
Fix available
A fix is available. Upgrade to after 8.6.2 or later.
See remediation →
100/100
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 Knowledge product of Oracle Knowledge (component: Information Manager Console). Supported versions that are affected are 8.6.0-8.6.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Knowledge. Successful attacks of this vulnerability can result in takeover of Oracle Knowledge. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/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 Information Manager Console component of Oracle Knowledge versions 8.6.0-8.6.2. An attacker with network access via HTTP can exploit this to achieve complete system compromise with full confidentiality, integrity, and availability impacts.

MitigationApply the Oracle patch for CVE-2020-2791 or upgrade to a supported version. If immediate patching is not possible, restrict network access to the Information Manager Console and deploy a WAF to block exploitation attempts.

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
KnowledgeWeb browser
Affected:>= 8.6.0, <= 8.6.2

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
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 the installed Oracle Knowledge version
    Access the Oracle Knowledge administrative console or check the product's 'About' / version information page typically found under the administration or help sections of the web interface
    Affected if The installed version falls within 8.6.0 through 8.6.2 (inclusive)
  2. Locate the Information Manager Console component
    Check the Oracle Knowledge application server configuration and deployed web applications for the Information Manager Console module. This is typically accessible via a specific URL path under the main Oracle Knowledge application
    Affected if The Information Manager Console component is deployed and accessible within the application
  3. Determine network exposure of the Information Manager Console
    Test network connectivity to the Information Manager Console URL endpoint using HTTP/HTTPS from an external location, or review firewall and load balancer configurations to confirm whether the component is exposed to untrusted networks
    Affected if The component accepts HTTP/HTTPS requests from network locations outside the trusted internal network (unauthenticated access is possible)
  4. Verify if the component accepts unauthenticated requests
    Attempt to access the Information Manager Console URL without providing any authentication credentials. Observe whether the application returns a login page or directly allows access to console functionality
    Affected if The component responds to unauthenticated HTTP requests without requiring authentication

If Oracle Knowledge version is 8.6.0, 8.6.1, or 8.6.2 AND the Information Manager Console is network-accessible without authentication, the environment is affected by CVE-2020-2791.

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 a release after 8.6.2
Interim mitigation

Apply the Oracle patch for CVE-2020-2791 or upgrade to a supported version. If immediate patching is not possible, restrict network access to the Information Manager Console and deploy a WAF to block exploitation attempts.

Recommended fix Moderate confidence

Version beyond 8.6.2 (verify with Oracle that target version includes CVE-2020-2791 fix)

  1. Check Oracle Critical Patch Updates for Oracle Knowledge security patches addressing CVE-2020-2791
  2. Visit Oracle Support website (support.oracle.com) and search for CVE-2020-2791
  3. Apply the relevant CPU (Critical Patch Update) patch for Oracle Knowledge 8.6.x
  4. Alternatively, if Oracle has released a newer version of Oracle Knowledge beyond 8.6.2, upgrade to that version after confirming it includes the fix for this vulnerability
  5. Verify the patch was applied successfully by reviewing the Information Manager Console version and confirming no unauthenticated access is possible
Caveat Check Oracle upgrade documentation for Knowledge 8.6.x to newer versions for any configuration or compatibility considerations

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

Fix this in Knowledge Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing10.0 h
  • Review / QA6.0 h
34.0 hours of engineering $5,940
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,504.

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-2020-2791 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