Big Ip Advanced Firewall ManagerApplication · F5
CVE-2018-15313
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 · uneditedOn F5 BIG-IP AFM 13.0.0-13.1.1.1 and 12.1.0-12.1.3.6, there is a Reflected Cross Site Scripting vulnerability in undisclosed TMUI page.
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 confidenceF5 BIG-IP AFM versions 12.1.0-12.1.3.6 and 13.0.0-13.1.1.1 contain a reflected cross-site scripting (XSS) vulnerability in an undisclosed page of the TMUI (Traffic Management User Interface) web management console. The vulnerability allows unauthenticated attackers to inject malicious scripts via crafted URLs that are reflected back to the user.
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 Advanced Firewall ManagerApplication
>= 12.1.0, <= 12.1.3.6>= 13.0.0, <= 13.1.1.1CVSS 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:3.0/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 checksWork through these to decide whether this CVE applies to you.
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Confirm BIG-IP AFM module is installedAccess the F5 command line (tmsh) and run 'tmsh list sys module' or check the BIG-IP license information to verify the Advanced Firewall Manager (AFM) module is provisioned.Affected if AFM module is not listed/provisioned in the system
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Determine the installed BIG-IP versionLog into the TMUI (Traffic Management User Interface) via web browser and navigate to Main > Overview > Overview, or run 'tmsh show sys version' on the command line to obtain the exact BIG-IP version number.Affected if The version falls within 12.1.0-12.1.3.6 or 13.0.0-13.1.1.1
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Verify the TMUI management interface is network-accessibleAttempt to access the TMUI web console via HTTPS on port 443 or the management port from the network location from which you would be targeted. Confirm whether the TMUI is reachable over the network.Affected if TMUI is accessible from an untrusted network (such as the internet) and the version is within the affected ranges
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Check for available BIG-IP hotfixes or patchesReview the installed version by running 'tmsh show sys software' or check the F5 Downloads site for any hotfixes applied to your specific version.Affected if The base version remains within the affected ranges and no supplemental security fixes have been applied
You are affected if the BIG-IP AFM module is installed, the BIG-IP version is 12.1.0-12.1.3.6 or 13.0.0-13.1.1.1, and the TMUI is accessible to untrusted users who could be tricked into clicking a crafted URL.
Generated from the published advisory. Verify against your own configuration.
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 dataUpgrade BIG-IP AFM to a version beyond 13.1.1.1 (for 13.x) or 12.1.3.6 (for 12.x) to obtain the vendor patch. As a temporary measure, restrict access to the TMUI to trusted networks only.
Fix this in Big Ip Advanced Firewall Manager
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-15313 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-15313 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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