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Common ApplicationsApplication · Oracle

CVE-2021-2436

HIGH · 8.2 CVSS v3.1 Published 2021-07-21
Fix available
A fix is available. Upgrade to after 12.2.10 or later.
See remediation →
89/100
Remediation priority · High
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 Common Applications product of Oracle E-Business Suite (component: CRM User Management Framework). Supported versions that are affected are 12.1.1-12.1.3 and 12.2.3-12.2.10. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Common Applications. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Common Applications, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Common Applications accessible data as well as unauthorized update, insert or delete access to some of Oracle Common Applications accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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 vulnerability in Oracle E-Business Suite's CRM User Management Framework affecting versions 12.1.1-12.1.3 and 12.2.3-12.2.10. Attackers with network access can exploit this issue without credentials, but require human interaction (such as tricking a user to click a malicious link). The vulnerability allows unauthorized access to critical data and potentially full access to Oracle Common Applications data, plus unauthorized update/insert/delete operations.

MitigationApply Oracle Critical Patch Update patches for CVE-2021-2436. Since this is an unauthenticated vulnerability in a core E-Business Suite component, prioritize patching quickly while ensuring adequate testing in a non-production environment first due to the critical nature of ERP systems.

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
Common ApplicationsApplication
Affected:>= 12.1.1, <= 12.1.3>= 12.2.3, <= 12.2.10

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
High
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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
    Check for Oracle E-Business Suite processes running on the server or look for Oracle application directories (typically $APPL_TOP). Use command: ps -ef | grep -i oracle | grep -i fnd or check for $ORACLE_HOME/applications directory.
    Affected if Oracle E-Business Suite is not installed - not affected
  2. Identify E-Business Suite version
    Query the Oracle Applications table using SQL: SELECT release_name FROM apps.fnd_product_groups; OR access Oracle Applications Manager at $BASE_URL/OA_HTML/AppsLogin and check the About page.
    Affected if Version falls outside 12.1.1-12.1.3 OR 12.2.3-12.2.10 - not affected
  3. Verify CRM User Management Framework is accessible
    Test HTTP access to the CRM User Management Framework endpoint. This component is typically accessed via /crm/ in the E-Business Suite URLs. Attempt: curl -I http://<server>/crm/ or https://<server>/crm/
    Affected if HTTP endpoint responds without authentication - potentially affected if version is in range
  4. Check network exposure of the affected component
    Review web server configuration (OHS/Oracle HTTP Server) in $ORACLE_HOME/ohs/conf/httpd.conf or check load balancer rules to determine if /crm/ paths are exposed to untrusted networks.
    Affected if CRM User Management Framework is accessible from untrusted networks without authentication filters - likely affected

Affected only if Oracle E-Business Suite version is within 12.1.1-12.1.3 or 12.2.3-12.2.10 AND the CRM User Management Framework HTTP endpoint is exposed to network access without authentication.

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 12.2.10
Interim mitigation

Apply Oracle Critical Patch Update patches for CVE-2021-2436. Since this is an unauthenticated vulnerability in a core E-Business Suite component, prioritize patching quickly while ensuring adequate testing in a non-production environment first due to the critical nature of ERP systems.

Fix this in Common Applications Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing10.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,580
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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-2021-2436 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