CVE-2021-29152
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 · uneditedA remote denial of service (DoS) vulnerability was discovered in Aruba ClearPass Policy Manager version(s): Prior to 6.10.0, 6.9.6 and 6.8.9. Aruba has released updates to ClearPass Policy Manager that address this security vulnerability.
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 confidenceA remote denial of service (DoS) vulnerability exists in Aruba ClearPass Policy Manager. An unauthenticated remote attacker can potentially cause the service to become unavailable, disrupting policy enforcement operations.
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>= 6.6.0, <= 6.6.10>= 6.7.0, <= 6.7.14>= 6.8.0, < 6.8.9>= 6.9.0, < 6.9.6CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 checksWork through these to decide whether this CVE applies to you.
-
Confirm the product is Aruba ClearPass Policy ManagerIdentify if the system runs Aruba ClearPass Policy Manager. Check product documentation or system inventory for ClearPass deployment.Affected if The system is not Aruba ClearPass Policy Manager (not affected by this specific CVE)
-
Determine the installed ClearPass Policy Manager versionAccess the ClearPass admin interface or CLI and locate the version information. Typically found in About or System Info pages, or via CLI command 'show version' or 'app version'.Affected if Unable to retrieve version information for ClearPass Policy Manager
-
Compare installed version against affected rangesCheck if the version matches any of these ranges: 6.6.0 through 6.6.10, 6.7.0 through 6.7.14, 6.8.0 through 6.8.8, or 6.9.0 through 6.9.5Affected if Version falls within any of these ranges: 6.6.x (where x<=10), 6.7.x (where x<=14), 6.8.x (where x<9), or 6.9.x (where x<6)
-
Verify the service is exposed to networkConfirm ClearPass Policy Manager web interface or API is accessible from network. Check firewall rules and service listening configurations.Affected if Service is exposed to unauthenticated network attackers (required for remote DoS exploit)
-
Review access logs for DoS indicatorsCheck ClearPass logs for unusual patterns of failed requests or service degradation signs, particularly from unauthenticated sources.Affected if Exploitation may leave traces in access or error logs
A system is affected if it runs Aruba ClearPass Policy Manager version 6.6.0-6.6.10, 6.7.0-6.7.14, 6.8.0-6.8.8, or 6.9.0-6.9.5 and is network-accessible to unauthenticated attackers.
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 data6.8.96.9.6
Upgrade Aruba ClearPass Policy Manager to version 6.10.0, 6.9.6, or 6.8.9 (or later) to patch this vulnerability.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-29152 — 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-2021-29152 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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