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Complex Maintenance Repair And OverhaulApplication · Oracle

CVE-2024-21027

MEDIUM · 6.1 CVSS v3.1 Published 2024-04-16
Fix available
A fix is available. Upgrade to after 12.2.13 or later.
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 Complex Maintenance, Repair, and Overhaul product of Oracle E-Business Suite (component: LOV). Supported versions that are affected are 12.2.3-12.2.13. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Complex Maintenance, Repair, and Overhaul. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Complex Maintenance, Repair, and Overhaul, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Complex Maintenance, Repair, and Overhaul accessible data as well as unauthorized read access to a subset of Oracle Complex Maintenance, Repair, and Overhaul 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

This is an unauthenticated HTTP-based vulnerability in the List of Values (LOV) component of Oracle Complex Maintenance, Repair, and Overhaul (E-Business Suite). Attackers can exploit it via HTTP requests to achieve unauthorized read, insert, update, or delete access to data. The requirement for human interaction suggests a social engineering element (e.g., tricking a user to click a malicious link), and the scope change indicates the attack may affect other Oracle products.

MitigationApply Oracle Critical Patch Update (CPU) for April 2024 that addresses CVE-2024-21027. Restrict HTTP access to the affected E-Business Suite endpoints using network segmentation or Web Application Firewall (WAF) rules as an interim control until patching is complete.

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
Complex Maintenance Repair And OverhaulApplication
Affected:>= 12.2.3, <= 12.2.13

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. Confirm Oracle E-Business Suite installation and version
    Query the Oracle Applications database table FND_APPS_VERSION or check the $APPL_TOP/../sql directory for version files. Run: SELECT release_name FROM fnd_product_groups; or inspect the OAHTML directory for version.txt.
    Affected if The E-Business Suite version falls within 12.2.3 to 12.2.13 inclusive.
  2. Identify Oracle Complex Maintenance Repair and Overhaul (CMRO) module version
    Check the CMRO-specific version using Oracle Applications Manager (OAM) or query the CMRO version tables. Look for files in $CMRO_TOP or run: SELECT patch_level FROM all_tables WHERE table_name = 'CMRO_INSTALLATION';
    Affected if The CMRO module version is 12.2.3 or higher but not patched beyond 12.2.13.
  3. Verify HTTP listeners are enabled and exposed
    Check Oracle HTTP Server (OHS) configuration files in $ORACLE_HOME/Apache/Apache/conf or inspect active listeners. Verify ports 8000, 8001, 80, or 443 are in LISTEN state using netstat -an | grep -E '8000|8001|80|443'.
    Affected if The E-Business Suite web interfaces are accessible over HTTP/HTTPS on exposed ports.
  4. Confirm LOV (List of Values) component is accessible
    Test access to LOV endpoint paths such as /OA_HTML/LOV or /webservices/LOV. Attempt a GET request to these paths from an unauthorized host to verify they respond without authentication.
    Affected if The LOV web component responds to HTTP requests without requiring Oracle application authentication.

You are affected if Oracle E-Business Suite with CMRO module version is between 12.2.3 and 12.2.13 and the HTTP-based LOV component is exposed on network-accessible ports.

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 12.2.13
Interim mitigation

Apply Oracle Critical Patch Update (CPU) for April 2024 that addresses CVE-2024-21027. Restrict HTTP access to the affected E-Business Suite endpoints using network segmentation or Web Application Firewall (WAF) rules as an interim control until patching is complete.

Fix this in Complex Maintenance Repair And Overhaul Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing8.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,160
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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-2024-21027 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