CVE-2001-0791
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 · uneditedTrend Micro InterScan VirusWall for Windows NT allows remote attackers to make configuration changes by directly calling certain CGI programs, which do not restrict access.
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 · moderate confidenceTrend Micro InterScan VirusWall for Windows NT contains CGI programs that do not enforce access restrictions, allowing remote attackers to directly invoke these programs and modify the application configuration without authentication.
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 dataall versionsCVSS 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
- None
- Integrity
- Partial
- Availability
- None
AV:N/AC:L/Au:N/C:N/I:P/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.
-
Verify Trend Micro InterScan VirusWall is installedCheck for the presence of the InterScan VirusWall installation directory, typically found at C:\Program Files\Trend Micro\InterScan VirusWall or review installed programs in Windows Add/Remove Programs.Affected if The software is installed on the system
-
Locate CGI program filesLook for CGI executable files (typically .exe or .dll files with cgi- in the name) in the web server's cgi-bin directory under the InterScan installation path, commonly in a folder named 'cgi-bin' or 'isapi'.Affected if CGI programs exist in the InterScan directory
-
Test CGI access without authenticationUsing a web browser or curl tool, attempt to access the InterScan CGI scripts directly via HTTP/HTTPS (e.g., http://[hostname]//cgi-bin/ [cgi-script-name]) without providing any credentials.Affected if The CGI scripts respond without requiring authentication
-
Check web server configuration for InterScanExamine the web server (IIS or other) configuration to verify whether the InterScan CGI directories are protected by authentication mechanisms such as Basic, Digest, or Windows Integrated Authentication.Affected if No authentication is configured for the InterScan CGI directories
-
Determine network exposure of administration interfaceVerify whether the server hosting InterScan VirusWall is directly accessible from untrusted networks (such as the internet) on ports 80/443 or the configured web administration ports.Affected if The administration interface is exposed to untrusted networks without firewall protection
A system is affected if Trend Micro InterScan VirusWall for Windows NT is installed and its CGI programs are accessible without authentication or network-level access controls.
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 proper authentication and authorization controls on the affected CGI programs, or restrict network access to the administration interface using network-level controls such as firewall rules or IP whitelisting.
- Consultation4.0 h
- Implementation6.0 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 $4,304.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2001-0791 — 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-2001-0791 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