Big Iq Centralized ManagementApplication · F5
CVE-2021-22997
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 all 7.x and 6.x versions (fixed in 8.0.0), BIG-IQ HA ElasticSearch service does not implement any form of authentication for the clustering transport services, and all data used by ElasticSearch for transport is unencrypted. Note: Software versions which have reached End of Software Development (EoSD) 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 · high confidenceThe BIG-IQ HA ElasticSearch clustering transport services lack authentication entirely, and all data transmitted between ElasticSearch nodes is unencrypted. This allows unauthenticated network attackers to potentially read, modify, or intercept cluster data traffic.
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 Iq Centralized ManagementApplication
>= 6.0.0, < 8.0.0CVSS 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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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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Identify F5 BIG-IQ installationLocate any F5 BIG-IQ Centralized Management appliances or virtual instances in your environment. Check for the presence of BIG-IQ software through inventory systems, deployed hosts, or management consoles.Affected if F5 BIG-IQ Centralized Management is present in the environment
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Determine installed BIG-IQ versionAccess the BIG-IQ administrative interface or use system commands to retrieve the installed version number. Compare the version against the affected range: 6.0.0 through versions less than 8.0.0.Affected if Installed version is >= 6.0.0 and < 8.0.0
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Verify ElasticSearch clustering is configuredCheck if ElasticSearch clustering transport services are enabled on the BIG-IQ system. Review cluster configuration settings, node definitions, and transport layer setup through the BIG-IQ management interface or configuration files.Affected if ElasticSearch clustering transport services are enabled or configured on the BIG-IQ system
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Assess network exposure of ElasticSearch transport portsExamine firewall rules, network ACLs, and exposed interfaces to determine if ElasticSearch transport ports (typically 9300/tcp for node communication) are accessible from untrusted networks or non-cluster members.Affected if ElasticSearch transport ports are reachable from unauthorized network segments or untrusted hosts
The environment is affected if F5 BIG-IQ Centralized Management versions 6.0.0 through below 8.0.0 are installed with ElasticSearch clustering transport services enabled and accessible from untrusted networks.
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 data8.0.0
Upgrade BIG-IQ to version 8.0.0 or later. For interim compensating controls, implement strict network segmentation and firewall rules to limit access to the ElasticSearch transport ports to only authorized cluster members.
Fix this in Big Iq Centralized Management
Scoped from the published advisory
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-22997 — 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-2021-22997 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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