Big Ip Application Security ManagerApplication · F5
CVE-2019-6687
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 versions 15.0.0-15.0.1.1, the BIG-IP ASM Cloud Security Services profile uses a built-in verification mechanism that fails to properly authenticate the X.509 certificate of remote endpoints.
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 confidenceThe BIG-IP ASM Cloud Security Services profile on versions 15.0.0-15.0.1.1 contains a certificate validation flaw where the built-in verification mechanism fails to properly authenticate X.509 certificates from remote endpoints. This allows connections to endpoints presenting invalid, expired, or self-signed certificates without rejection, potentially enabling man-in-the-middle attacks.
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 Application Security ManagerApplication
>= 15.0.0, < 15.1.0CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/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 checksWork through these to decide whether this CVE applies to you.
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Check BIG-IP versionRun 'tmsh show /sys version' or view the version in the BIG-IP GUI under DashboardAffected if Version is 15.0.0 through 15.0.1.1 (versions below 15.0.0 or 15.1.0 and above are not affected)
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Verify ASM module is provisionedRun 'tmsh list /sys provision asm' or check via GUI under System > Resource ProvisioningAffected if ASM is provisioned and active
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Identify Cloud Security Services profile configurationRun 'tmsh list /asm cloud-services' or navigate to ASM > Options > Cloud Services in the GUI to list any configured profilesAffected if A Cloud Security Services profile exists and is referenced in a security policy
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Confirm the profile is applied to trafficReview associated virtual servers or security policies that reference the Cloud Security Services profile using 'tmsh list /asm policy' and checking for cloud-services referencesAffected if The Cloud Security Services profile is actively applied to traffic processing
If BIG-IP version is 15.0.0-15.0.1.1, ASM is provisioned, and a Cloud Security Services profile exists and is applied, the environment is vulnerable to improper certificate validation.
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 data15.1.0
Upgrade BIG-IP to version 15.0.1.2 or later, or disable the affected Cloud Security Services profile until patching is possible.
Fix this in Big Ip Application Security Manager
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-6687 — 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-2019-6687 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
- No spam, self-promotion, credentials, or personal data