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FortiwlmApplication · Fortinet

CVE-2023-34985

HIGH · 8.8 CVSS v3.1 Published 2023-10-10
Fix available
A fix is available. Upgrade to after 8.6.5 or later.
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 improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unauthorized code or commands via specifically crafted HTTP get request parameters.

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

OS command injection vulnerability in Fortinet FortiWLM versions 8.5.0-8.5.4 and 8.6.0-8.6.5 allows remote attackers to execute arbitrary commands via specially crafted HTTP GET request parameters due to improper neutralization of special elements.

MitigationUpdate FortiWLM to the vendor-provided patched version that addresses this vulnerability. Until patched, consider restricting network access to the management interface and implementing WAF rules to detect and block suspicious request 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
FortiwlmApplication
Affected:>= 8.5.0, <= 8.5.4>= 8.6.0, <= 8.6.5

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:3.1/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 FortiWLM installed version
    Log into the FortiWLM CLI or web UI and run the command to display system information. Typical CLI command: 'get system status' or 'show system global'. Alternatively, check the web UI dashboard for the firmware version.
    Affected if The displayed version falls within 8.5.0-8.5.4 or 8.6.0-8.6.5.
  2. Verify management interface accessibility
    Check the network configuration to determine which interfaces the FortiWLM management service is bound to. In the web UI, go to System > Network > Interface. From CLI, use 'show system interface' to review interface bindings.
    Affected if The management interface is bound to a WAN-facing or external interface, making it reachable from untrusted networks.
  3. Review HTTP access logs for suspicious requests
    Examine FortiWLM access logs for GET requests containing unusual characters or patterns typical of command injection attempts. Look for characters like ';', '|', '&&', '$(', or backticks in URL parameters. Log location is typically accessible via the web UI or CLI.
    Affected if There are recent GET requests to the management interface with command injection patterns in the parameters.
  4. Check for unauthorized command execution indicators
    Review system logs and audit logs for any unexpected commands or scripts that were executed by the web server process. Use CLI command: 'execute log filter category event' and review for anomalies.
    Affected if Logs show execution of commands that were not initiated by legitimate administrative actions.

You are affected if your FortiWLM version is 8.5.0 through 8.5.4 or 8.6.0 through 8.6.5 AND your management interface is accessible from the network, or if your logs show evidence of suspicious command injection requests.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 8.6.5
Interim mitigation

Update FortiWLM to the vendor-provided patched version that addresses this vulnerability. Until patched, consider restricting network access to the management interface and implementing WAF rules to detect and block suspicious request patterns.

Recommended fix Moderate confidence

FortiWLM 8.5.5 or 8.6.6 (or later stable release)

  1. 1. Verify current FortiWLM version by accessing the web UI or CLI
  2. 2. Identify the appropriate upgrade path based on current version (8.5.x or 8.6.x branch)
  3. 3. Download the patched version from Fortinet customer support portal or FortiGuard
  4. 4. Review upgrade documentation and release notes for prerequisites
  5. 5. Backup current configuration before upgrading
  6. 6. Apply the upgrade following Fortinet's standard upgrade procedure
  7. 7. Verify the version after upgrade confirms the fix is applied
  8. 8. Test that the specific HTTP GET request functionality works as expected post-upgrade
Caveat Review release notes for any configuration changes or migration requirements between minor versions

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Fortiwlm Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing6.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,220
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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-2023-34985 in production — separate from our analysis above.

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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