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Virus Control SystemApplication · Trend Micro

CVE-2003-1342

MEDIUM · 5.0 CVSS v2.0 Published 2003-12-31
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
Trend Micro Virus Control System (TVCS) 1.8 running with IIS allows remote attackers to cause a denial of service (memory consumption) in IIS via multiple URL requests for ActiveSupport.exe.

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

Multiple HTTP GET requests to the ActiveSupport.exe component of Trend Micro Virus Control System 1.8 cause excessive memory consumption in the underlying IIS web server, leading to denial of service. The vulnerability is triggered by sending repeated malicious requests to the affected executable.

MitigationApply available vendor patches for TVCS 1.8, implement IIS request throttling/rate limiting, or disable the ActiveSupport.exe component if not required for operations.

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
Virus Control SystemApplication
Affected:= 1.8

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
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

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. Confirm TVCS installation
    Check if Trend Micro Virus Control System 1.8 is installed on the server. Look for the installation directory (typically under Program Files/Trend Micro) or check Add/Remove Programs for 'Virus Control System' version 1.8.
    Affected if TVCS version 1.8 is installed
  2. Locate ActiveSupport.exe
    Search for ActiveSupport.exe in the TVCS installation directory or web server's wwwroot/scripts folder.
    Affected if ActiveSupport.exe file exists on the system
  3. Verify IIS script mapping
    Check IIS Manager to see if ActiveSupport.exe is mapped as a script handler or ISAPI extension under the website's script mappings.
    Affected if ActiveSupport.exe is registered as a script mapping in IIS
  4. Confirm service is accessible
    Attempt a local HTTP GET request to http://localhost/ActiveSupport.exe or the relevant URL path where the component is hosted.
    Affected if The ActiveSupport.exe responds to HTTP requests over the network

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

Apply available vendor patches for TVCS 1.8, implement IIS request throttling/rate limiting, or disable the ActiveSupport.exe component if not required for operations.

Fix this in Virus Control System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2003-1342 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