CVE-2016-9315
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 · uneditedPrivilege Escalation Vulnerability in com.trend.iwss.gui.servlet.updateaccountadministration in Trend Micro InterScan Web Security Virtual Appliance (IWSVA) version 6.5-SP2_Build_Linux_1707 and earlier allows authenticated, remote users with least privileges to change Master Admin's password and/or add new admin accounts. This was resolved in Version 6.5 CP 1737.
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 confidenceThis is a privilege escalation vulnerability in Trend Micro InterScan Web Security Virtual Appliance (IWSVA) where an authenticated remote user with minimal/least privileges can change the Master Admin's password or add new administrative accounts through the vulnerable updateaccountadministration servlet, effectively gaining full administrative control over the appliance.
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<= 6.5CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check IWSVA versionAccess the management console or use the command line interface to retrieve the installed version number. Typically found in the system information section of the web UI or via CLI command 'version' or 'get system info'. Compare your version to the affected range (6.5 and below).Affected if The installed version is 6.5 or any version lower than 6.5 CP 1737.
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Verify web management interface exposureConfirm whether the IWSVA web management console (typically ports 8080 or 8443) is accessible from the network. Check firewall rules and listening services.Affected if The management interface is exposed externally without proper network segmentation or access controls.
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Review account administration logsAccess the IWSVA logs, specifically looking at audit logs or security logs for the 'updateaccountadministration' servlet activity. Search for events involving password changes or account modifications.Affected if Logs show password changes to the Master Admin account or creation of new administrative accounts that you did not authorize.
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Enumerate administrative accountsLog into the IWSVA management interface and navigate to the account administration or user management section. List all accounts with administrative privileges.Affected if There are additional administrative accounts present that you did not create, or the Master Admin password has been changed without your knowledge.
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Check for privilege escalation indicatorsReview user privilege assignments. Specifically verify if any standard or limited-privilege users have been granted administrative roles.Affected if Users with minimal/default privileges have been granted administrative access or elevated permissions.
You are affected if your IWSVA version is 6.5 or lower AND the management interface is accessible to authenticated users who could exploit the updateaccountadministration servlet to escalate privileges or create unauthorized admin accounts.
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 dataApply the vendor patch by upgrading to IWSVA version 6.5 CP 1737 or later. Until the patch is applied, limit user access to the management interface and monitor for unauthorized account modifications.
- Consultation3.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-9315 — 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-2016-9315 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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