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Northstar Club ManagementApplication · Globalnorthstar

CVE-2021-29395

HIGH · 7.5 CVSS v3.1 Published 2022-02-04
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
Directory travesal in /northstar/filemanager/download.jsp in Northstar Technologies Inc NorthStar Club Management 6.3 allows remote unauthenticated users to download arbitrary files, including JSP source code, across the filesystem of the host of the web application.

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 confidence

A path traversal vulnerability in /northstar/filemanager/download.jsp of NorthStar Club Management 6.3 allows unauthenticated remote attackers to download arbitrary files from the server filesystem by manipulating path parameters with '../' sequences, potentially exposing sensitive system files and JSP source code.

MitigationImplement strict input validation and path canonicalization on file download parameters, restrict file access to an allowed directory whitelist, and apply principle of least privilege to the web application's file system permissions.

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
Northstar Club ManagementApplication
Affected:= 6.3

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify NorthStar Club Management installation and version
    Locate the web application installation directory and check for version information in the application's configuration files, metadata, or about页面. Common locations include WEB-INF/web.xml, a version.properties file, or the application's admin interface.
    Affected if The installed version matches exactly 6.3 (Globalnorthstar Northstar Club Management)
  2. Verify vulnerable endpoint exists
    Check if the file /northstar/filemanager/download.jsp exists in the web application's deployed files. This can be done by listing the directory contents of the web root or by attempting to access the URL path directly if the application is running.
    Affected if The file download.jsp exists in the /northstar/filemanager/ directory within the deployed application
  3. Confirm web service is accessible
    Attempt to access the application's main URL or the specific endpoint path over HTTP/HTTPS to verify the web service is running and responding.
    Affected if The application responds to HTTP requests and the /northstar/filemanager/ path is routable
  4. Check if filemanager module is enabled
    Inspect the application's configuration (such as web.xml or application-specific config) to determine if the filemanager servlet or endpoint is registered and enabled.
    Affected if The filemanager download functionality is mapped and active in the application configuration
  5. Assess authentication requirements
    Test whether the vulnerable endpoint can be reached without providing credentials or establishing a session. Attempt a direct request to the download.jsp path.
    Affected if The endpoint is accessible without authentication (no login required)
  6. Verify application has filesystem access
    Review the application's deployment configuration and running process to confirm it has read access to directories outside the intended web root.
    Affected if The application process has filesystem permissions that extend beyond its designated web root directory

A system is affected if it runs Globalnorthstar Northstar Club Management version 6.3 with the /northstar/filemanager/download.jsp endpoint exposed and accessible without authentication.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict input validation and path canonicalization on file download parameters, restrict file access to an allowed directory whitelist, and apply principle of least privilege to the web application's file system permissions.

Fix this in Northstar Club Management Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-29395 in production — separate from our analysis above.

No notes yet

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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