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Big Ip Access Policy ManagerApplication · F5

CVE-2022-41800

HIGH · 8.7 CVSS v3.1 Published 2022-12-07
Fix available
A fix is available. Upgrade to after 17.0.0 or later.
See remediation →
93/100
Remediation priority · Urgent
High EPSS 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
In all versions of BIG-IP, when running in Appliance mode, an authenticated user assigned the Administrator role may be able to bypass Appliance mode restrictions, utilizing an undisclosed iControl REST endpoint. A successful exploit can allow the attacker to cross a security boundary.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

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

In BIG-IP running Appliance mode, an authenticated Administrator can bypass Appliance mode restrictions through an undisclosed iControl REST endpoint, allowing security boundary crossing.

MitigationApply F5-provided patches for this vulnerability. Until patch availability, strictly limit administrative access and monitor for unusual iControl REST API activity.

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
Big Ip Access Policy ManagerApplication
Affected:>= 13.1.0, <= 13.1.5>= 14.1.0, <= 14.1.5>= 15.1.0, <= 15.1.8>= 16.1.0, <= 16.1.3= 17.0.0
Big Ip Advanced Firewall ManagerApplication
Affected:>= 13.1.0, <= 17.0.0
Big Ip AnalyticsApplication
Affected:>= 13.1.0, <= 13.1.5>= 14.1.0, <= 14.1.5>= 15.1.0, <= 15.1.8>= 16.1.0, <= 16.1.3= 17.0.0
Big Ip Application Acceleration ManagerApplication
Affected:>= 13.1.0, <= 13.1.5>= 14.1.0, <= 14.1.5>= 15.1.0, <= 15.1.8>= 16.1.0, <= 16.1.3= 17.0.0
Big Ip Application Security ManagerApplication
Affected:>= 13.1.0, <= 13.1.5>= 14.1.0, <= 14.1.5>= 15.1.0, <= 15.1.8>= 16.1.0, <= 16.1.3= 17.0.0
Big Ip Domain Name SystemApplication
Affected:>= 13.1.0, <= 13.1.5>= 14.1.0, <= 14.1.5>= 15.1.0, <= 15.1.8>= 16.1.0, <= 16.1.3= 17.0.0
Big Ip Fraud Protection ServiceApplication
Affected:>= 13.1.0, <= 13.1.5>= 14.1.0, <= 14.1.5>= 15.1.0, <= 15.1.8>= 16.1.0, <= 16.1.3= 17.0.0
Big Ip Global Traffic ManagerApplication
Affected:>= 13.1.0, <= 13.1.5>= 14.1.0, <= 14.1.5>= 15.1.0, <= 15.1.8>= 16.1.0, <= 16.1.3= 17.0.0

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
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/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. Identify BIG-IP version
    Run 'tmsh show /sys version' or query iControl REST endpoint GET /mgmt/tm/sys/version to retrieve the installed version.
    Affected if The version falls within 13.1.0-13.1.5, 14.1.0-14.1.5, 15.1.0-15.1.8, 16.1.0-16.1.3, or 17.0.0.
  2. Confirm Appliance mode is active
    Run 'tmsh show /sys appliance' or check the system database with 'tmsh list /sys db systemauth.appliance' to see if Appliance mode is enabled.
    Affected if The output shows Appliance mode is enabled (systemauth.appliance value is 'true').
  3. Verify iControl REST is exposed
    Confirm the iControl REST API is accessible on the management interface or self IP. Check with 'tmsh list /sys httpd' for REST settings.
    Affected if iControl REST is enabled and accessible.
  4. Review admin user activity logs
    Examine /var/log/audit for iControl REST API calls, particularly POST requests to undocumented endpoints. Use 'grep -i icrtd /var/log/audit' patterns.
    Affected if Unusual or undocumented iControl REST endpoint calls appear in audit logs from administrator sessions.

You are affected if your BIG-IP version matches the affected ranges AND Appliance mode is enabled, allowing an authenticated admin to potentially exploit the undisclosed REST endpoint.

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 17.0.0
Interim mitigation

Apply F5-provided patches for this vulnerability. Until patch availability, strictly limit administrative access and monitor for unusual iControl REST API activity.

Fix this in Big Ip Access Policy Manager Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.

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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-2022-41800 in production — separate from our analysis above.

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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