CVE-2001-0133
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 · uneditedThe web administration interface for Interscan VirusWall 3.6.x and earlier does not use encryption, which could allow remote attackers to obtain the administrator password to sniff the administrator password via the setpasswd.cgi program or other HTTP GET requests that contain base64 encoded usernames and passwords.
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 Interscan VirusWall 3.6.x and earlier web administration interface transmits administrator credentials in base64-encoded format over unencrypted HTTP, allowing remote attackers on the same network or upstream to intercept and decode the credentials via packet sniffing.
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<= 3.6= 3.0.1CVSS 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
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 Interscan VirusWall is installedCheck for the presence of Trend Micro Interscan VirusWall on the system by looking for its installation directory, service, or using system inventory toolsAffected if The product is not installed on the system
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Identify the installed versionLocate version information in the Interscan VirusWall installation, typically found in about dialogs, license information, or configuration files within the program directoryAffected if The installed version is 3.6 or earlier, or specifically version 3.0.1
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Check if web admin interface uses HTTPAttempt to access the web administration interface via HTTP (port 80) and observe whether the connection is unencrypted. Check the administration URL configuration in the product settings or web server configurationAffected if The web admin interface is accessible over unencrypted HTTP (not HTTPS)
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Verify credential transmission methodUse a network packet capture tool (such as tcpdump or Wireshark) on the network segment between the client and the Interscan VirusWall server while logging into the web admin interface. Observe whether base64-encoded strings matching the administrator username and password are transmitted in cleartext over HTTPAffected if Administrator credentials are transmitted in base64-encoded format over unencrypted HTTP
A system is affected if it runs Trend Micro Interscan VirusWall version 3.6 or earlier (including 3.0.1) with its web administration interface accessible over unencrypted HTTP, allowing credentials to be intercepted in base64-encoded form via network sniffing.
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 dataEnable SSL/TLS encryption for the web administration interface, restrict administrative access to trusted networks or VPNs, and immediately rotate any compromised administrator passwords.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2001-0133 — 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-2001-0133 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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