Interscan Web Security Virtual ApplianceApplication · Trendmicro

CVE-2019-9490

HIGH · 8.8 CVSS v3.0 Published 2019-04-05
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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
A vulnerability in Trend Micro InterScan Web Security Virtual Appliance version 6.5 SP2 could allow an non-authorized user to disclose administrative credentials. An attacker must be an authenticated user in order to exploit the vulnerability.

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

Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 contains an information disclosure vulnerability allowing authenticated non-privileged users to obtain administrative credentials. This is a vertical privilege escalation through improper authorization checks on credential retrieval functionality.

MitigationApply the vendor patch for CVE-2019-9490 to InterScan Web Security Virtual Appliance 6.5 SP2. Review access logs for any unauthorized administrative access attempts and rotate exposed credentials as a precautionary measure.

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
Interscan Web Security Virtual ApplianceApplication
Affected:= 6.5

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 InterScan Web Security Virtual Appliance version
    Log into the appliance administrative console or run 'lmstat' or check system information to confirm the installed version is 6.5 SP2
    Affected if Running version 6.5 SP2 (exact match)
  2. Verify user role configuration
    Check the user management section of the admin console to confirm the existence of non-privileged (non-administrator) user accounts configured in the system
    Affected if Non-privileged user accounts exist in the system
  3. Test credential retrieval authorization
    Using a non-privileged authenticated user account, attempt to access the administrative credential retrieval functionality (such as viewing saved admin passwords or API credentials) through the web interface or API endpoints
    Affected if Non-privileged users can retrieve administrative credentials without proper authorization failure
  4. Review audit logs for credential access
    Examine security and audit logs for instances where non-administrator accounts accessed administrative credential storage or retrieval functions
    Affected if Logs show non-privileged users accessed credential retrieval features

A user is affected if they are running InterScan Web Security Virtual Appliance 6.5 SP2 with non-privileged accounts that can access administrative credential retrieval functionality without proper authorization checks.

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 the vendor patch for CVE-2019-9490 to InterScan Web Security Virtual Appliance 6.5 SP2. Review access logs for any unauthorized administrative access attempts and rotate exposed credentials as a precautionary measure.

Fix this in Interscan Web Security Virtual Appliance Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,280
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2019-9490 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-9490 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