CVE-2024-27943
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 · uneditedA vulnerability has been identified in RUGGEDCOM CROSSBOW (All versions < V5.5). The affected systems allow a privileged user to upload generic files to the root installation directory of the system. By replacing specific files, an attacker could tamper specific files or even achieve remote code execution.
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 confidenceRUGGEDCOM CROSSBOW versions before V5.5 allow authenticated privileged users to upload arbitrary files to the root installation directory due to insufficient path validation. This file upload vulnerability permits attackers to overwrite system files and potentially achieve remote code execution.
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< 5.5CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/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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Determine the installed RUGGEDCOM CROSSBOW versionAccess the device management interface or use the system information panel to identify the current firmware/software version. This is typically found under System Info, About, or Diagnostics menus in the web management console.Affected if The displayed version number is less than 5.5 (for example, 5.4.x, 5.3.x, or earlier releases).
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Verify if the web management interface is accessibleAttempt to access the RUGGEDCOM CROSSBOW web interface via HTTPS or HTTP using the device IP address. Confirm the login page loads and authentication is possible.Affected if The web interface is reachable and accepts authentication credentials, indicating the file upload functionality is available.
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Check for the file upload feature availabilityLog in as a privileged user and navigate to any firmware update, configuration import, or file upload sections within the management interface. Look for options labeled firmware upgrade, config backup/restore, or file transfer.Affected if The interface exposes any file upload functionality that accepts files and appears to allow uploading to the root installation directory.
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Inspect for unauthorized files in root directoryIf CLI or diagnostic access is available, list files in the root installation directory (typically / or C:\) and compare against expected system files. Look for unexpected files or backdoors.Affected if Files exist in the root directory that were not deliberately placed by administrators, or system files show unexpected modification timestamps.
The environment is affected if RUGGEDCOM CROSSBOW version is below 5.5 and the web management interface with file upload capability is accessible to authenticated privileged users.
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 · scoped5.5
Upgrade to RUGGEDCOM CROSSBOW V5.5 or later which addresses the improper path validation in file upload functionality.
Ruggedcom Crossbow V5.5 or later
- 1. Identify the current installed version of Ruggedcom Crossbow
- 2. Obtain the V5.5 or later version of Ruggedcom Crossbow from Siemens (cert-portal.siemens.com or official Siemens support channels)
- 3. Create a full backup of the current system configuration
- 4. Follow Siemens official upgrade documentation to apply the V5.5 update
- 5. After upgrade, verify the system is operational and the version shows V5.5 or later
- 6. Confirm the file upload vulnerability is remediated by testing that generic files cannot be uploaded to the root directory
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-27943 — 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-2024-27943 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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