LogontracerApplication · Jpcert

CVE-2018-16165

MEDIUM · 6.1 CVSS v3.0 Published 2019-01-09
Fix available
A fix is available. Upgrade to after 1.2.0 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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
Cross-site scripting vulnerability in LogonTracer 1.2.0 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

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 confidence

LogonTracer versions 1.2.0 and earlier contain a cross-site scripting (XSS) vulnerability that allows remote attackers to inject arbitrary JavaScript or HTML into web pages served by the application. The vulnerability stems from insufficient input sanitization or output encoding of user-supplied data rendered in the application's web interface.

MitigationUpgrade LogonTracer to a version newer than 1.2.0. Until an official patch is available, implement output encoding and input validation on all user-facing fields to prevent script injection.

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
LogontracerApplication
Affected:<= 1.2.0

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
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Locate LogonTracer installation directory
    Search for LogonTracer installation folders (commonly /opt/logontracer, /usr/share/logontracer, or a custom installation path). Check for a version file or examine the main script/module for a version string.
    Affected if LogonTracer is found on the system
  2. Determine installed LogonTracer version
    Open the version file or the main Python script and locate the version declaration. Compare it to the affected range: versions 1.2.0 and earlier.
    Affected if The installed version is 1.2.0 or lower
  3. Verify web interface is accessible
    Check if the LogonTracer web service is running (default port 8080 or configured port). Use 'netstat -tuln | grep <port>' or attempt a local HTTP request to confirm the web interface responds.
    Affected if The web interface is exposed and responds to HTTP requests
  4. Confirm user input fields exist in web UI
    Access the LogonTracer web interface and identify fields that accept user-supplied data (such as username, hostname, or search fields) which could potentially render without proper encoding.
    Affected if User-facing input fields are present in the web interface

You are affected if LogonTracer version 1.2.0 or earlier is installed AND its web interface is accessible, as user-supplied input in the web pages may not be properly sanitized.

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
Upgrade available Upgrade to a release after 1.2.0
Interim mitigation

Upgrade LogonTracer to a version newer than 1.2.0. Until an official patch is available, implement output encoding and input validation on all user-facing fields to prevent script injection.

Fix this in Logontracer Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2018-16165 — 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-2018-16165 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