FortisandboxApplication · Fortinet
CVE-2024-27778
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 · uneditedAn improper neutralization of special elements used in an OS Command vulnerability [CWE-78] vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.4, FortiSandbox 4.2.1 through 4.2.6, FortiSandbox 4.0.0 through 4.0.4, FortiSandbox 3.2 all versions, FortiSandbox 3.1 all versions, FortiSandbox 3.0.5 through 3.0.7 allows an authenticated attacker with at least read-only permission to execute unauthorized commands via crafted requests.
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 an OS command injection (CWE-78) vulnerability in Fortinet FortiSandbox that allows an authenticated attacker with at least read-only permissions to execute unauthorized OS commands via specially crafted HTTP requests. The vulnerability affects versions 4.4.0-4.4.4, 4.2.1-4.2.6, 4.0.0-4.0.4, and 3.x versions.
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
FortisandboxApplication
>= 3.0.5, < 4.0.5>= 4.2.0, < 4.2.7>= 4.4.0, < 4.4.5CVSS 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:3.1/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 checksWork through these to decide whether this CVE applies to you.
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Check FortiSandbox versionLog into the FortiSandbox CLI and run the command 'get system status' or access the web UI and navigate to Dashboard > System Information to view the firmware versionAffected if The displayed version falls within 3.0.5 to 4.0.4, 4.2.0 to 4.2.6, or 4.4.0 to 4.4.4
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Verify web UI access exposureCheck if the FortiSandbox web interface (HTTPS port 443) is accessible from untrusted networks by reviewing firewall rules or network segmentation configurationAffected if The web UI is exposed to the internet or untrusted networks without IP restriction
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Review HTTP access logs for suspicious requestsExamine FortiSandbox logs via the web UI at Log & Report > Event Log or by checking /var/log/lighttpd/access.log for unusual or malformed HTTP requests, especially those containing shell metacharactersAffected if Logs show unexpected HTTP requests with suspicious patterns or requests to endpoints not normally accessed by legitimate users
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Audit user accounts and permissionsIn the web UI, go to System > Administrator to review all accounts. In CLI, use 'diagnose system admin list' to see all administrators and their privilege levelsAffected if There are unauthorized accounts, or accounts with read-only access that should not exist or were not created by administrators
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Check system execution logs for unauthorized commandsReview system logs via Log & Report > Event Log or use CLI command 'execute log filter category 1' then 'execute log display' to look for unexpected command executionsAffected if Logs contain command executions that were not initiated by known administrators or show commands executed outside normal administrative workflows
A user is affected if their FortiSandbox version is 3.0.5-4.0.4, 4.2.0-4.2.6, or 4.4.0-4.4.4 AND the web interface is accessible to an authenticated attacker with read-only permissions.
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.
dbcve · scoped4.0.54.2.74.4.5
Upgrade FortiSandbox to a patched version as specified in Fortinet's security advisory. If immediate patching is not possible, restrict administrative access to trusted IPs only and monitor for suspicious command execution patterns.
Upgrade to FortiSandbox 4.0.5 or later, 4.2.7 or later, or 4.4.5 or later (recommended: latest stable 4.4.x release)
- 1. Identify the current FortiSandbox version by navigating to System > Firmware in the web UI or running 'get system status' in the CLI
- 2. Determine which upgrade path applies based on current version: for 3.0.x go to 4.0.5+, for 4.2.x go to 4.2.7+, for 4.4.x go to 4.4.5+
- 3. Download the appropriate firmware image from Fortinet Customer Support portal (https://support.fortinet.com)
- 4. Backup the FortiSandbox configuration via System > Maintenance > Backup & Restore
- 5. Upload the new firmware image via System > Firmware
- 6. Confirm the upgrade and allow the system to reboot
- 7. Verify successful upgrade by checking the version in System > Dashboard > Status
- 8. Verify the vulnerability is resolved by confirming the fixed version is running
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Fortisandbox
Scoped from the published advisory
- Consultation8.0 h
- Implementation4.0 h
- Testing12.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,744.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-27778 — 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-2024-27778 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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