FortiosOperating system · Fortinet

CVE-2017-14185

MEDIUM · 5.3 CVSS v3.0 Published 2018-05-25
Fix available
A fix is available. Upgrade to after 5.6.2 or later.
See remediation →
62/100
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
An Information Disclosure vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8 and 5.2 all versions allows SSL VPN web portal users to access internal FortiOS configuration information (eg:addresses) via specifically crafted URLs inside the SSL-VPN web portal.

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

An information disclosure vulnerability in Fortinet FortiOS SSL VPN web portal allows authenticated VPN users to access internal FortiOS configuration data such as addresses via specifically crafted URLs. The vulnerability affects versions 5.6.0-5.6.2, 5.4.0-5.4.8, and all 5.2 versions.

MitigationUpgrade FortiOS to a patched version beyond 5.6.2/5.4.8. Until then, limit SSL VPN web portal access to trusted users only and monitor for suspicious URL patterns.

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
FortiosOperating system
Affected:>= 5.2.0, <= 5.2.13>= 5.4.0, <= 5.4.8>= 5.6.0, <= 5.6.2

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
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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. Identify FortiOS version
    Run 'get system status' via CLI or check the FortiOS dashboard for the firmware version number
    Affected if The version falls within 5.2.0-5.2.13, 5.4.0-5.4.8, or 5.6.0-5.6.2
  2. Verify SSL VPN web portal is enabled
    Check FortiOS configuration for 'ssl vpn web portal' settings via 'show ssl vpn web portal' in CLI
    Affected if An SSL VPN web portal is configured and active
  3. Review SSL VPN access logs for suspicious URLs
    Inspect SSL VPN and FortiGate logs for URLs containing patterns that access internal configuration endpoints, such as paths referencing 'addr' or 'firewall/address' objects
    Affected if Logs show requests to internal configuration data URLs that were not initiated by administrators
  4. Check for unauthorized access to address objects
    Review log entries for 'firewall address' or similar internal configuration object access through the SSL VPN web portal
    Affected if Non-administrator VPN users have accessed internal address or configuration objects

If FortiOS version is within 5.2.0-5.2.13, 5.4.0-5.4.8, or 5.6.0-5.6.2 and the SSL VPN web portal is accessible to users, the environment is vulnerable to information disclosure via crafted URLs.

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 5.6.2
Interim mitigation

Upgrade FortiOS to a patched version beyond 5.6.2/5.4.8. Until then, limit SSL VPN web portal access to trusted users only and monitor for suspicious URL patterns.

Fix this in Fortios Scoped from the published advisory
  • Consultation4.0 h
  • Implementation3.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,300
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2017-14185 — 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-2017-14185 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