CVE-2021-29394
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 · uneditedAccount Hijacking in /northstar/Admin/changePassword.jsp in Northstar Technologies Inc NorthStar Club Management 6.3 allows remote authenticated users to change the password of any targeted user accounts via lack of proper authorization in the user-controlled "userID" parameter of the HTTP POST request.
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 changePassword.jsp endpoint in NorthStar Club Management 6.3 lacks server-side authorization validation on the userID parameter. Any authenticated user can craft a POST request with an arbitrary userID to reset any other user's password, enabling complete account takeover of targeted accounts.
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= 6.3CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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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Confirm NorthStar Club Management installationIdentify if the NorthStar Club Management application is installed and determine its version by checking the application banner, about page, or software inventoryAffected if The installed version is exactly 6.3
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Locate changePassword.jsp endpointSearch the web server for the changePassword.jsp file, typically found in the web application's root or admin directoryAffected if The changePassword.jsp endpoint exists and is accessible to authenticated users
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Verify endpoint accepts userID parameterInspect the HTTP requests and parameters accepted by changePassword.jsp to confirm it accepts a userID parameter for password reset operationsAffected if The endpoint accepts a userID parameter in the POST request for password modification
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Test authorization bypassAs an authenticated user, submit a password change POST request with an arbitrary userID different from the authenticated session's userIDAffected if The password reset completes successfully for a user other than the one in the current authenticated session, indicating missing server-side authorization validation
A user is affected if NorthStar Club Management version 6.3 is running and the changePassword.jsp endpoint allows password changes for arbitrary userIDs without verifying the requesting user has permission to modify that specific user's password.
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 dataImplement server-side authorization checks to verify the requesting user has permission to modify the target user's password, typically by validating the userID matches the authenticated session or enforcing role-based access controls.
- 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-2021-29394 — 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-2021-29394 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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