dbcve.org
Enterprise Manager Base PlatformApplication · Oracle

CVE-2021-2137

HIGH · 8.8 CVSS v3.1 Published 2021-10-20
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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 Enterprise Manager Base Platform product of Oracle Enterprise Manager (component: Policy Framework). Supported versions that are affected are 13.4.0.0 and 13.5.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Enterprise Manager Base Platform. Successful attacks of this vulnerability can result in takeover of Enterprise Manager Base Platform. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/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

Vulnerability in Oracle Enterprise Manager Base Platform's Policy Framework component allows a low-privileged attacker with network access via HTTP to execute arbitrary code and achieve complete system takeover, impacting confidentiality, integrity, and availability.

MitigationApply Oracle Critical Patch Update (CPU) containing the fix for CVE-2021-2137 to affected versions 13.4.0.0 and 13.5.0.0. If immediate patching is not possible, restrict network access to Enterprise Manager interfaces.

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
Enterprise Manager Base PlatformApplication
Affected:= 13.4.0.0= 13.5.0.0

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/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 Oracle Enterprise Manager Base Platform version
    Query the Enterprise Manager console or check the installation directory for the version file. Common locations include $ORACLE_HOME/EMGC_ Domain1/emsdk or the console's 'About' page which displays the installed version.
    Affected if The installed version matches exactly 13.4.0.0 or 13.5.0.0
  2. Verify Policy Framework component is present
    Check the Enterprise Manager console under 'Enterprise' > 'Quality of Service Management' or navigate to the Policy Framework section within the Oracle Enterprise Manager Cloud Control interface.
    Affected if The Policy Framework module is accessible and listed in the console, indicating the vulnerable component is installed.
  3. Confirm network accessibility of Enterprise Manager HTTP interfaces
    Review network configuration and firewall rules to determine if Enterprise Manager console ports (typically 7801-7803, or 5500 for Cloud Control) are exposed to untrusted networks. Use 'netstat -an | grep <port>' or review load balancer/firewall ACLs.
    Affected if HTTP-based interfaces are reachable from network segments accessible to low-privileged users or untrusted networks.
  4. Check for existing exploit indicators
    Review Enterprise Manager audit logs and access logs for unusual requests to Policy Framework endpoints, particularly POST requests to policy execution or deployment functions.
    Affected if Suspicious activity patterns are found in logs related to Policy Framework operations from unexpected sources.

You are affected if your Enterprise Manager Base Platform is exactly version 13.4.0.0 or 13.5.0.0 AND the Policy Framework is accessible AND the HTTP interfaces are network-reachable by low-privileged attackers.

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

Apply Oracle Critical Patch Update (CPU) containing the fix for CVE-2021-2137 to affected versions 13.4.0.0 and 13.5.0.0. If immediate patching is not possible, restrict network access to Enterprise Manager interfaces.

Fix this in Enterprise Manager Base Platform Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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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-2021-2137 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