ContivityHardware / appliance · Nortel

CVE-2000-0063

MEDIUM · 5.0 CVSS v2.0 Published 2000-01-17
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
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
cgiproc CGI script in Nortel Contivity HTTP server allows remote attackers to read arbitrary files by specifying the filename in a parameter to the script.

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

The cgiproc CGI script in Nortel Contivity HTTP server contains a path traversal vulnerability that allows remote attackers to read arbitrary files on the system by manipulating a filename parameter in the request. This is a classic directory traversal issue where the CGI script does not properly validate or sanitize user-supplied input specifying file paths.

MitigationDisable or remove the vulnerable cgiproc CGI script if not required, or apply vendor patches if available. If the script is required, implement strict input validation to prevent directory traversal sequences (../) and restrict access to allowed directories only.

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
ContivityHardware / appliance
Affected:= 1.0

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
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:L/Au:N/C:P/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 if Nortel Contivity HTTP server is installed
    Check for Nortel Contivity installation directories or services on the system. Common paths may include installation directories under Program Files or system directories. Look for processes named 'contivity' or related services.
    Affected if The software is present on the system
  2. Determine the installed version of Nortel Contivity
    Locate version information in the installation directory, registry entries, or by querying the service/process version. Compare the found version against the affected range: version 1.0.
    Affected if The installed version is exactly 1.0
  3. Locate the cgiproc CGI script
    Search for the cgiproc or cgiproc.exe file in the web server's CGI bin directory (commonly /cgi-bin/ or /cgi/). Check the Contivity web root for CGI scripts.
    Affected if The cgiproc script file exists on the system
  4. Verify CGI script is accessible via HTTP
    Attempt to access the cgiproc script through the web server using a URL such as http://[host]/cgi-bin/cgiproc or similar path. Confirm the server responds to requests for this endpoint.
    Affected if The cgiproc script is accessible via HTTP and responds to requests

A user is affected if they have Nortel Contivity version 1.0 installed with the cgiproc CGI script present and accessible on their web server.

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

Disable or remove the vulnerable cgiproc CGI script if not required, or apply vendor patches if available. If the script is required, implement strict input validation to prevent directory traversal sequences (../) and restrict access to allowed directories only.

Fix this in Contivity 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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Scan for this in your stack

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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-2000-0063 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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