CVE-2021-22530
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 vulnerability identified in NetIQ Advance Authentication that doesn't enforce account lockout when brute force attack is performed on API based login. This issue may lead to user account compromise if successful or may impact server performance. This issue impacts all NetIQ Advance Authentication before 6.3.5.1
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 confidenceNetIQ Advance Authentication before 6.3.5.1 fails to enforce account lockout policies on API-based login endpoints, allowing unlimited brute force attempts against user credentials. This authentication bypass enables attackers to systematically guess passwords without triggering lockout, potentially leading to account compromise or causing denial of service through resource exhaustion.
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< 6.3= 6.3CVSS 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
- Changed
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
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.
-
Identify NetIQ Advance Authentication versionCheck the installed version of NetIQ Advance Authentication through the product's admin console, system information page, or by querying the installation directory for version files. Compare against affected versions: anything less than 6.3 or exactly version 6.3 is vulnerable.Affected if Installed version is less than 6.3 or equals exactly 6.3
-
Confirm API login endpoints are exposedReview the application's URL patterns and configuration to identify if API-based login endpoints are enabled and accessible. Common paths include /api/login, /rest/auth, or similar RESTful authentication interfaces.Affected if API-based login endpoints are publicly or internally accessible without additional authentication
-
Verify account lockout policy configurationAccess the authentication policy settings in the NetIQ admin console and examine whether lockout policies explicitly apply to API login methods. Check if separate policy rules exist for API versus web interface logins.Affected if No specific account lockout policy is defined for API login endpoints or API logins are excluded from lockout enforcement
-
Review authentication logs for brute force patternsExamine authentication and audit logs for repeated failed login attempts from the same source IP or against the same user account without any lockout events being recorded.Affected if Logs show numerous failed login attempts without corresponding account lockout records
Your environment is affected if NetIQ Advance Authentication version 6.3 or earlier is installed AND API-based login endpoints are accessible AND no API-specific account lockout policy is enforced.
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.
dbcve · scoped6.3
Upgrade to NetIQ Advance Authentication 6.3.5.1 or later, which implements proper account lockout enforcement for API login attempts. As an interim measure, implement network-level rate limiting or web application firewall rules to restrict login attempt frequency.
6.3.5.1 or later
- Download NetIQ Advanced Authentication version 6.3.5.1 or later from the official NetIQ website
- Follow NetIQ's standard upgrade procedure for Advanced Authentication
- Verify the upgrade was successful
- Test that account lockout is now enforced for API-based login attempts
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-22530 — 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-2021-22530 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